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Imitrex (Sumatriptan)
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Imitrex

Imitrex is a high-quality medication which is taken in treatment of the symptoms of migraine headaches. Imitrex acts by narrowing blood vessels in the head and stopping pain signals from being sent to the brain. It is selective serotonin receptor agonists.

Other names for this medication:

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Axert, Relpax, Frova, Amerge, Migergot, Sansert, Frova, Maxalt-MLT, Amerge, Axert, Ergomar, Treximet, Maxalt, Relpax, Midrin, Cafergot, Zomig-ZMT, Migranal, D.H.E. 45, Epidrin, Zomig, Duradrin

 

Also known as:  Sumatriptan.

Description

Imitrex is a perfect remedy in struggle against the symptoms of migraine headaches.

Imitrex acts by narrowing blood vessels in the head and stopping pain signals from being sent to the brain. It is selective serotonin receptor agonists.

Imitrex is also known as Sumatriptan, Imigran.

Generic name of Imitrex is Sumatriptan.

Brand names of Imitrex are Imitrex, Imitrex nasal.

Dosage

Shake the liquid form of Imitrex before using.

Keep this remedy away from children and don't give it to other people for using.

Do not crush or chew it.

Use Imitrex once a day.

If you want to achieve most effective results do not stop taking Imitrex suddenly.

Overdose

If you overdose Imitrex and you don't feel good you should visit your doctor or health care provider immediately. Symptoms of Imitrex overdosage: breathing problems, blue-colored lips or fingernails, weakness, lack of coordination, shaking, convulsions, vision problems, skin redness, watery eyes or mouth.

Storage

Store at room temperature between 2 and 30 degrees C (36 and 86 degrees F) away from moisture and heat. Throw away any unused medicine after the expiration date. Keep out of the reach of children.

Side effects

The most common side effects associated with Imitrex are:

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Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.

Contraindications

Do not take Imitrex if you are allergic to Imitrex components or to aspirin.

Do not take Imitrex if you are pregnant, planning to become pregnant. Avoid breast-feeding.

Be careful with this medicine if you smoke, if you are postmenopausal, or if you are a man over 40.

Be careful using Imitrex if you take selective serotonin reuptake inhibitors (Ssris) such as citalopram (Celexa), escitalopram (Lexapro), fluoxetine (Prozac, Sarafem, in symbyax), fluvoxamine, paroxetine (Paxil), and sertraline (Zoloft); and selective serotonin/norepinephrine reuptake inhibitors (Snris) such as duloxetine (Cymbalta) and venlafaxine (Effexor).

It can be dangerous to use Imitrex if you suffer from or have a history of high blood pressure, angina (recurring chest pain), heart attack, high cholesterol, obesity, stroke, transient ischemic attack (mini-stroke), ischemic bowel disease, coronary artery disease, seizures, or blood vessel, kidney, or liver disease, heart disease, diabetes.

Avoid alcohol.

It can be dangerous to stop Imitrex taking suddenly.

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A retrospective chart review was performed on 54 eyes of 28 patients who had been identified as taking sumatriptan and had undergone LASIK at Minnesota Eye Consultants between 1999 and 2001. These patients were compared with 54 gender- and age-matched control eyes operated on with the same microkeratome at the same location during the same period of time. The incidence of epithelial defects during LASIK was compared between the two groups.

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Sumatriptan (Imitrex), a selective 5-hydroxytryptamine receptor agonist, has been found to be of therapeutic benefit in the acute management of migraine. There is no information on the transfer of this agent across the human placenta. Accordingly, the current study assessed the transport of this drug across the normal term human placenta, using the isolated perfused single cotyledon technique. We found that only about 15% of a single dose of the agent placed in the maternal reservoir crossed into the fetal compartment over 4 hr. Given the average elimination half-life of 2 hr for sumatriptan, it is evident that only very small amounts of the agent will cross from mother to fetus after single doses of Imitrex. Only the parent drug entered the fetal compartment. Metabolites were not detected in the perfusates, but there was evidence of some metabolism of sumatriptan in the placenta. The nature of the metabolites has not been determined. The mechanism of transfer of the drug across the placenta is passive (i.e., the clearance is similar to L-glucose which is passively transported), the rate of transfer is equal in both directions (maternal to fetal and in the reverse), and the drug does not cross into the fetus against a concentration gradient. This passive transport of sumatriptan across the placenta is consistent with its molecular weight, its water solubility, and its slow penetration across the blood-brain barrier in experimental animals.

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The percentage of patients reporting satisfied/very satisfied for Overall Satisfaction of SNC versus S/N (primary endpoint) was 85% versus 72% respectively (p = 0.054). For Overall Effectiveness, the results were 82% for SNC versus 73% for S/N (p = 0.159); and for Overall Side Effects the results were 86% for SNC versus 69% for S/N (p = 0.005). Mean PPMQ-R scores reflect greater satisfaction with SNC than S/N for Total score and for each of four subscales. The difference between SNC and S/N was significant for the Ease of Use subscale (p = 0.004) and met the criterion of being clinically meaningful for both the Total score and Ease of Use. SNC did not differ from S/N with respect to pain-free response 2 h post dose, pain relief 2 h post dose, sustained 24 h pain-free response, or sustained 24 h pain relief.

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Efficacy and tolerability profiles of Treximet [sumatriptan/naproxen sodium combination tablet (SNC)] have been established in clinical trials but have to date been virtually unstudied in pragmatic research. The primary objective of this study was to compare the overall satisfaction of SNC to its monotherapy components, S/N [one 100 mg Imitrex tablet (S) and two Aleve (naproxen sodium) 220 mg tablets, total dose 440 mg (N)] administered concomitantly using the Patient Perception of Migraine Questionnaire -Revised (PPMQ-R).

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Each study subject performed two unaided simulated injections with each of three different drug delivery devices, which were presented in counterbalanced order. The participants were then asked to rate the three devices on various subjective measures. The primary end point was overall device preference using a visual analog scale.

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The efficacy and tolerability of subcutaneous (SC) sumatriptan administered with the IMITREX (sumatriptan succinate) STATdose System, which circumvents the need for patients or health care professionals to handle a syringe, were evaluated in two randomized, double-masked, parallel-group, placebo-controlled, multicenter studies. In the clinic, 158 adults with migraine diagnosed according to International Headache Society criteria received SC sumatriptan (6 mg) or placebo delivered with the IMITREX STATdose System for treatment of a migraine attack. By 120 minutes after SC dosing, 73% and 79% of sumatriptan-treated patients, compared with 28% and 37% of placebo-treated patients in studies 1 and 2, respectively, experienced headache relief (a statistically significant difference). Clinical disability scores 120 minutes after dosing showed that 75% and 85% of sumatriptan-treated patients, compared with 30% and 42% of placebo-treated patients, were normal or only mildly impaired (a statistically significant difference). Similar efficacy rates were observed for nausea, phonophobia, and photophobia. No serious or unusual adverse events occurred, and no clinically relevant abnormalities in laboratory test values were reported. Based on these results, we concluded that SC sumatriptan (6 mg) administered using the IMITREX STATdose System is effective for the treatment of migraine. The efficacy and tolerability profiles of SC sumatriptan administered with this device are similar to those reported for SC sumatriptan administered with a conventional syringe.

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Polypharmacy (the prescription of more than one therapy for a single patient) and subcutaneous (s.c.) sumatriptan tolerability were prospectively studied in 12,339 migraineurs, each followed for up to 1 year. Inclusion/exclusion criteria were minimal and mirrored United States Imitrex labeling. Drug usage and compliance monitoring were automatically interfaced with prescription refill. Concomitant drugs were used by 79% of patients, with analgesics, antidepressants, and sedatives used most commonly. No adverse interactions between sumatriptan and neurological drugs were found, possibly reflecting relative inability of the former to cross the blood-brain barrier. No difference in cardiovascular adverse events was associated with oral contraceptive use, which was more common than expected. No other drug class influenced adverse event probability, although sample sizes for these comparisons was sometimes <400 patients. This study confirms the prevalence of polypharmacy in migraine, identifies the drugs used, and concludes that, on a population basis, the tolerability of s.c. sumatriptan, when used according to labeled instructions, is unaffected by these concomitant drugs.

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Although the primary endpoint only just failed, the results of this pragmatic outcomes study demonstrate SNC to have benefits over its concomitantly administered components in the acute treatment of migraine.

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The migraine-specific triptans have revolutionized the treatment of migraine and are usually the drugs of choice to treat a migraine attack in progress. Sumatriptan (Imitrex) has been available for the longest time within the class, is most flexible in form and has been given successfully to the most number of patients. It is useful for the full range of attacks experienced by a migraine suffer. The aim of this review is to provide an overview of the first 10 years of the use of sumatriptan.

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Sumatriptan succinate (SS) is a 5-HT1 receptor agonist used in the treatment of migraine having poor bioavailability (15%) due to its extensive first-pass effect. The aim of this work was to prepare SS sublingual fast dissolving thin films (SFDTFs) allowing the drug to directly enter the systemic circulation and bypassing the first-pass metabolism. Plain thin films were prepared using solvent casting technique adopting 2(3) × 3 factorial design to study the effect of polymer and plasticizer type and concentration on mechanical properties and in vitro disintegration time of the plain prepared films using Design-Expert®. Medicated films were prepared after addition of 35 mg SS to each of the two selected plain formulae (F6 and F7) having desirability values above 0.9 showing the values of: 0.038, 0.039 kgf/mm(2) and 156.24, 164.16% and 0.0248, 0.0240 kgf/mm(2) as tensile strength, percent elongation and elastic modulus, respectively. PVP K30 was efficient as crystallization inhibitor in retarding SS crystallization. Pharmacokinetic study of the optimum formula F7 (PVP K30:SS (1:1 w/w)) in healthy human volunteers using LC/MS/MS revealed a shorter tmax (0.25 h) compared to Imitrex® tablet 25 mg (2 h) which is considered promising especially for the rapid relief of acute migraine attacks.

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In the comparison with commercially available intranasal sumatriptan 20 mg, DFN-02 had a more rapid absorption profile; tmax was 15 minutes for DFN-02 monodose, 10.2 minutes for DFN-02 multidose, and 2.0 hours for commercially available intranasal sumatriptan 20 mg. Compared with 4 and 6 mg subcutaneous sumatriptan, DFN-02's median tmax (10 minutes) was significantly earlier (15 minutes; P < .0001). Mean sumatriptan exposure metrics were similar for DFN-02 and 4 mg sumatriptan: AUC0-2 : 35.12 and 44.82 ng*hour/mL, respectively; AUC0-∞ : 60.70 and 69.21 ng*hour/mL, respectively; Cmax : 51.79 and 49.07 ng/mL, respectively. With 6 mg subcutaneous sumatriptan, these exposure metrics were about 50% larger (AUC0-2 : 67.17 ng*hour/mL; AUC0-∞ : 103.78 ng*hour/mL; Cmax : 72.75 ng/mL). Inter-subject variability of AUC0-2 , AUC0-∞ , and Cmax was 42-58% for DFN-02, 15-22% for 4 mg subcutaneous sumatriptan, and 15-25% for 6 mg subcutaneous sumatriptan. DDM exposure was low (mean Cmax : 1.63 ng/mL), tmax was 30 minutes, and it was undetectable by 4 hours. There were no serious adverse events, discontinuations due to adverse events, or remarkable findings for vital signs, physical examinations (including nasal and injection site examinations), or clinical laboratory assessments. The overall incidence of adverse events was comparable across treatments, and all treatment-related events were mild in severity. Adverse events occurring in ≥10% of subjects were dysgeusia (19%), headache (18%), nausea (15%), paresthesia (15%), and dizziness (12%).

imitrex po dosing

This double-blind, placebo-controlled, crossover study of the acute treatment of migraine investigated the efficacy and tolerability of oral sumatriptan 100 mg (Imitrex) administered for up to nine attacks compared with placebo administered for up to three attacks. Patients were randomized to receive oral sumatriptan 100 mg or placebo on an outpatient basis in a 3:1 ratio for three four-attack blocks. Headache relief 4 hours postdose was observed in 59 to 65% of patients after sumatriptan treatment compared with 18 to 23% of patients after placebo treatment across three four-attack blocks (p < 0.005). For each block, oral sumatriptan 100 mg was also significantly more effective than placebo at relieving clinical disability and nausea and vomiting. Efficacy on all these measures was consistently maintained with repeated administration. Oral sumatriptan 100 mg was well tolerated, and repeated administration did not alter the pattern or severity of adverse events. These data demonstrate that the efficacy and tolerability of oral sumatriptan 100 mg was consistently maintained with repeated administration for up to nine separate migraine attacks.

imitrex 300 mg

This randomized, double-blind, parallel-group, placebo-controlled study evaluated the efficacy and tolerability of oral sumatriptan (Imitrex tablets) in 259 migraineurs. In the clinic, patients received oral sumatriptan 25 mg, 50 mg, or 100 mg, or placebo for the treatment of a migraine attack. The results indicate that by 2 hours post-dose, 50 to 56% of patients treated with any of the three doses, compared with 26% of patients treated with placebo, achieved relief of headache (p < 0.05 for each sumatriptan group vs placebo). By 4 hours postdose, 68 to 71% of sumatriptan-treated patients, compared with 38% of placebo-treated patients, achieved relief of headache (p < 0.05 for each sumatriptan group vs placebo). Oral sumatriptan was similarly effective at relieving nausea and photophobia and at reducing clinical disability. The pattern and incidence of adverse events did not differ between treatment groups. All doses--25 mg, 50 mg, and 100 mg--of sumatriptan were effective and generally well tolerated. Dosing should be individualized according to the needs of the patient.

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A 13-year-old boy died suddenly at night while asleep. A colloid cyst filled the third ventricle, obstructed the flow of cerebral spinal fluid, and led to prominent hydrocephalus. Acute ventricular distension with brain herniation resulted in death, whereas repeated previous episodes had led to cerebral compression and edema. Complaints included only episodic headache in the month prior to death. His pediatrician prescribed a course of Imitrex (sumatriptan) because of lack of neurologic signs or other symptoms and a family history of migraine headaches. The headaches persisted, however, and within 1 month the patient died. The difficulty of accurate clinical diagnosis in this case is common. Subtle signs or even lack of symptoms of increased intracranial pressure may prevent a timely diagnosis before the occurrence of deadly complications. This case report helps to remind both forensic medical examiners and clinicians that this entity, although rare, should remain in the differential diagnosis of headache in children and young adults and of hydrocephalus at autopsy. Timely diagnosis of this benign lesion can lead to a surgical cure.

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Two clinical trials. Study A: Pharmacokinetics and bioequivalence was studied in normal adult volunteers (n = 57 total), directly comparing needle-free (Sumavel DosePro) with needle-based (Imitrex STATdose System) administration of 6 mg s.c. sumatriptan. An incomplete, randomized, partial factorial, crossover design was used. Each subject received 2 administrations of each product, at 2 of the 3 anatomical sites (abdomen, thigh or arm). There were appropriate "washout" periods between each. Pharmacokinetic sampling was at standard time points, and tests for bioequivalence then followed. Study B: The term "ease of use" was used for clinical acceptability and utility of the needle-free system when it was assessed among 52 outpatients treating migraine attacks. Instructional materials were used as would be provided after ordinary prescription. The primary endpoint was successful use of the needle-free system to administer sumatriptan at the first attempt, including appropriate injection site selection. Second and subsequent uses of the needle-free system were also documented.

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Both weight and BMI correlated negatively with each exposure metric for each treatment group. Across all treatment groups, AUC0-2 for subjects with BMI less than or equal to median value was 1.03-1.12 times the value for subjects with BMI more than median value. For subjects with BMI less than or equal to median value receiving DFN-11, median AUC0-2 was slightly less than that for subjects with BMI more than median value receiving Imitrex 4 mg and larger than that for subjects with BMI more than median value receiving Imitrex 3 mg. Results were similar for the other exposure metrics and for weight. Exposure was higher in women than in men, which can be attributed in part to differences in weight. There was no relationship between exposure and age. For DFN-11, AUC0-2 and AUC0-∞ were lower in nonwhites compared with whites; the ratio of median values was 0.84 and 0.89, respectively. A similar, nonstatistically significant, trend was observed in the other products (ratio of median values ranging from 0.84 to 0.89).

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We conducted two studies: a randomized, three-way crossover study comparing monodose and multidose devices for delivery of single doses of DFN-02 with commercially available intranasal sumatriptan 20 mg in 18 healthy, fasted adults, and an open-label, randomized, single-dose, three-way crossover bioavailability study comparing DFN-02 with 4 mg and 6 mg subcutaneous sumatriptan in 78 healthy, fasted adults. In the study comparing DFN-02 with IN sumatriptan, subjects received a single dose of DFN-02 (sumatriptan 10 mg plus DDM 0.20%) via monodose and multidose delivery systems with at least 5 days between treatments. In the comparison with SC sumatriptan, subjects received a single dose of each treatment with at least 3 days between treatments. In both studies, blood was sampled for pharmacokinetic evaluation of sumatriptan and DDM through 24 hours post-dose; safety and tolerability were monitored throughout.

imitrex 100 mg

Weight and BMI appear to be important covariates for sumatriptan exposure: subjects with lower values for either metric of body size have higher systemic exposure compared with subjects with higher values. Additional studies are required to determine if doses of subcutaneous sumatriptan may be adjusted based on BMI for comparable efficacy and a potentially improved tolerability profile.

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Subcutaneous (s.c.) injection of sumatriptan is currently associated with needle aversion in some patients, and sharps disposal issues.

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Advances in investigative research (e.g., functional magnetic resonance imaging) have made it possible to study putative migraine processes and better understand the pathophysiology of the disorder. Consequently, the apparent opposing vascular and neuronal theories of migraine are now reconciled into a neurovascular hypothesis that pieces together migrainous events and allows us to better target such events in the hope of providing safe and effective therapies. Parallel discoveries in the fields of pharmacology, physiology, genetics and other biomedical disciplines will lead to the development of optimal migraine therapeutics. Such discoveries have already yielded some major enhancement in acute migraine treatment with the development of sumatriptan (Imitrex, GlaxoSmithKline) and other triptans and the trajectory is likely to be exponential. Novel targets, such as calcitonin gene-related peptide antagonists and inhibitors of excitatory glutamatergic receptors, are leading the pack but many other promising targets are in development. The post-sumatriptan decades will witness treatment strategies that will improve the therapeutic index of acute therapies and others which will effectively and safely prevent migraine attacks.

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The objective of this human factors study was to compare migraine patients' device use performance and preferences for three sumatriptan subcutaneous autoinjectors: a disposable two-step device (Zembrace(®) SymTouch(®)), a disposable three-step device (Sumavel(®) DosePro(®)), and a multistep reloadable device (Imitrex(®) STATdose(®)), using simulated injections.

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To investigate whether a needle-free system can deliver s.c. sumatriptan. If so, to examine whether needle-free administration is bioequivalent to a 26-gauge needle-based auto-injector. Lastly, to assess the needle-free system for clinical acceptability and ease of use during migraine attacks.

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The efficacy and tolerability of oral sumatriptan (Imitrex tablets) were assessed in 187 migraineurs enrolled in a randomized, double-blind, parallel-group, placebo-controlled study. In the clinic, patients received oral sumatriptan 25 mg, 50 mg, or 100 mg, or placebo, for the treatment of a migraine attack. The results demonstrate that by 2 hours postdose, 52 to 57% of patients treated with sumatriptan 25 mg, 50 mg, 100 mg compared with 17% of patients treated with placebo achieved relief of headache (p < 0.05 for each sumatriptan group vs placebo). By 4 hours postdose, 65 to 78% of sumatriptan-treated patients compared with 19% of placebo-treated patients achieved relief of headache (p < 0.05 for each sumatriptan group vs placebo). Oral sumatriptan also effectively relieved nausea and photophobia and improved clinical disability. No serious or unusual adverse events were reported, and the pattern and incidence of adverse events did not vary among the sumatriptan doses. Each dose--25 mg, 50 mg, or 100 mg--of sumatriptan was effective and generally well tolerated.

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In this human factors study, 54 migraineurs used simulated injections to compare three sumatriptan subcutaneous delivery devices. Zembrace SymTouch, a two-step device, was most preferred compared with Sumavel DosePro and Imitrex STATdose. It also ranked highest for ease of use and various other measures. In this study, migraine patients preferred the autoinjector that they rated as simpler and more intuitive.

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imitrex generic price 2016-09-22

There were 295 evaluable patients. At 2 hours, 73.1% of the patients treated with dihydroergotamine and 85.3% of those treated with sumatriptan had relief (P = .002). There was no statistical difference in headache relief between the groups at buy imitrex 3 or 4 hours. Headache relief was achieved by 85.5% of those treated with dihydroergotamine and by 83.3% of those treated with sumatriptan by 4 hours. By 24 hours 89.7% of dihydroergotamine-treated patients and 76.7% of sumatriptan-treated patients had relief (P = .004). Headache recurred within 24 hours after treatment in 45% of the sumatriptan-treated patients and in 17.7% of the dihydroergotamine-treated patients (P < or = .001).

imitrex 6 mg 2016-12-19

The recent publication of drug formularies by third-party payers has serious implications for the practice of medicine. These formularies list the medications for which the consumer can be reimbursed by the third-party payer. The most restrictive of the five formularies I have received lists only two agents for the treatment of migraine headaches: Cafergot (at an incorrect dose of 1/100 mg) and Ergotrate buy imitrex which is no longer available. The most liberal of the formularies lists analgesics, Cafergot, Midrin, and Imitrex for the treatment of acute attacks, and as prophylactic agents, Inderal, Sansert, and analgesics (known to cause rebound headaches when used in this fashion in migraine patients). Abortive agents of proven value, such as DHE-45 and NSAIDs, and preventative medications, such as calcium channel blockers, tricyclic antidepressants, serotonin reuptake inhibitors, methylergonovine, and divalproex sodium, are not available. No one could quarrel with a goal of developing a cost-effective formulary. However, the authors of these formularies have clearly demonstrated their inability to provide even a current, accurate, and adequate formulary by existent standards of care in the treatment of migraine headache. While it is easy to criticize these formularies, it is more difficult to develop a comprehensive list that would satisfy the practitioners' need to provide relief for their patients with a minimum of side effects, and the needs of third-party payers (presumed) to provide quality care at the most economical level.

imitrex max dose 2017-11-02

The efficacy and tolerability of oral sumatriptan (Imitrex tablets) were assessed in 187 migraineurs enrolled in a randomized, double-blind, parallel-group, placebo-controlled study. In the clinic, patients received oral sumatriptan 25 mg buy imitrex , 50 mg, or 100 mg, or placebo, for the treatment of a migraine attack. The results demonstrate that by 2 hours postdose, 52 to 57% of patients treated with sumatriptan 25 mg, 50 mg, 100 mg compared with 17% of patients treated with placebo achieved relief of headache (p < 0.05 for each sumatriptan group vs placebo). By 4 hours postdose, 65 to 78% of sumatriptan-treated patients compared with 19% of placebo-treated patients achieved relief of headache (p < 0.05 for each sumatriptan group vs placebo). Oral sumatriptan also effectively relieved nausea and photophobia and improved clinical disability. No serious or unusual adverse events were reported, and the pattern and incidence of adverse events did not vary among the sumatriptan doses. Each dose--25 mg, 50 mg, or 100 mg--of sumatriptan was effective and generally well tolerated.

imitrex 10 mg 2016-01-12

Sumatriptan succinate (SS) is a selective serotonin receptor agonist used for the treatment of migraine attacks, suffering from extensive first-pass metabolism and low oral bioavailability (∼14%). The aim of this work is to compare the performance of different ready-made co-processed platforms (Pharmaburst®, Prosolv ODT®, Starlac®, Pearlitol Flash®, or Ludiflash®) in the formulation of SS sublingual orodispersible tablets (ODTs) using direct compression technique. The prepared SS ODT formulae were evaluated regarding hardness, friability, simulated wetting time, and in vitro disintegration and dissolution tests. Different mucoadhesive polymers-HPMC K4M, Carbopol®, chitosan, or Polyox®-were tested aiming to increase buy imitrex the residence time in the sublingual area. A pharmacokinetic study on healthy human volunteers was performed, using LC/MS/MS assay, to compare the optimum sublingual formula (Ph25/HPMC) with the conventional oral tablet Imitrex®. Results showed that tablets prepared using Pharmaburst® had significantly (p < 0.05) the lowest simulated wetting and in vitro disintegration times of 17.17 and 23.50 s, respectively, with Q 5 min of 83.62%. HPMC showed a significant (p < 0.05) increase in the residence time from 48.44 to 183.76 s. The relative bioavailability was found to be equal to 132.34% relative to the oral tablet Imitrex®. In conclusion, Pharmaburst® was chosen as the optimum ready-made co-processed platform that can be successfully used in the preparation of SS sublingual tablets for the rapid relief of migraine attacks.

imitrex 100 mg 2015-06-09

Relief of head pain and recurrence of buy imitrex successfully treated headache.

imitrex dosage medscape 2016-08-19

A retrospective chart review was performed on 54 eyes of 28 patients who had been identified as taking sumatriptan and had undergone LASIK at Minnesota Eye Consultants between 1999 and 2001. These patients were compared with 54 gender- and age-matched control eyes operated on with the same microkeratome at the same buy imitrex location during the same period of time. The incidence of epithelial defects during LASIK was compared between the two groups.

imitrex tablet ingredients 2015-01-02

Double-blind, randomized trial with parallel buy imitrex treatment arms.

imitrex pill 2017-05-23

Sumavel DosePro needle-free delivery system buy imitrex is a new presentation of s.c. sumatriptan that delivers drug effectively, is bioequivalent to the existing needle auto-injector when used at the thigh or abdomen, and is easy to use.

imitrex 25 mg 2017-01-19

Advances in investigative research (e.g., functional magnetic resonance imaging) have made it possible to study putative migraine processes and better understand the pathophysiology of the disorder. Consequently, the apparent opposing vascular and neuronal theories of migraine are now reconciled into a neurovascular hypothesis that pieces together migrainous events and buy imitrex allows us to better target such events in the hope of providing safe and effective therapies. Parallel discoveries in the fields of pharmacology, physiology, genetics and other biomedical disciplines will lead to the development of optimal migraine therapeutics. Such discoveries have already yielded some major enhancement in acute migraine treatment with the development of sumatriptan (Imitrex, GlaxoSmithKline) and other triptans and the trajectory is likely to be exponential. Novel targets, such as calcitonin gene-related peptide antagonists and inhibitors of excitatory glutamatergic receptors, are leading the pack but many other promising targets are in development. The post-sumatriptan decades will witness treatment strategies that will improve the therapeutic index of acute therapies and others which will effectively and safely prevent migraine attacks.

imitrex brand name 2017-01-09

Each study subject performed two unaided simulated buy imitrex injections with each of three different drug delivery devices, which were presented in counterbalanced order. The participants were then asked to rate the three devices on various subjective measures. The primary end point was overall device preference using a visual analog scale.

imitrex 300 mg 2017-08-15

Several strategies can reduce cost without sacrificing treatment outcome. In mild to moderate migraine, low-priced nonsteroidal anti-inflammatory drugs can be used as first-line medications due to their proven efficacy and favorable tolerability. For patients with more severe migraine, implementing a stratified care approach-using migraine-specific medications early in acute treatment-is cost-effective for most patients. Stratified care not only improves outcome and decreases disability, but also reduces cost. Pill splitting and early administration of triptans within an attack enhance their value. Supplying rescue medications, such as opioids, sedatives, and phenothiazines, can prevent emergency department visits. Minimizing multiple dosing of triptans and reducing utilization of expensive health care resources are key factors in reducing the cost of effective migraine treatment. An important affordability factor for patients with co-payments is the number of triptan pills per package. Sumatriptan, naratriptan, and frovatriptan each contain 9 tablets per package, while most other triptan packages contain 6. Current triptan retail prices (per unit) include: Amerge 1 and 2.5 mg, 17.78 dollars; Axert 6.25 and 12.5 mg, 16.31 dollars; Frova 2.5 mg, 13.89 dollars; Imitrex 50 mg, 14.96 dollars; Imitrex 100 mg, 14.41 dollars; Imitrex Nasal Spray 20 mg, 21.61 dollars; Imitrex SQ buy imitrex 6 mg, 50.26 dollars; Maxalt 5 and 10 mg, 15 dollars; Maxalt-MLT 5 and 10 mg, 15 dollars; Relpax 40 mg, 13.58 dollars; Zomig 2.5 mg, 13.67 dollars; Zomig 5 mg, 15.89 dollars; Zomig-ZMT 2.5 mg, 13.67 dollars; and Zomig-ZMT 5 mg, 15.89 dollars.

imitrex user reviews 2016-08-07

Two clinical trials. Study A: Pharmacokinetics and bioequivalence was studied in normal adult volunteers (n = 57 total), directly comparing needle-free (Sumavel DosePro) with needle-based (Imitrex STATdose System) administration of 6 mg s.c. sumatriptan. An incomplete, randomized, partial factorial, crossover design was used. Each subject received 2 administrations of each product, at 2 of the 3 anatomical sites (abdomen, thigh or arm). There were appropriate "washout" periods between each. Pharmacokinetic sampling was at standard time points, and tests for bioequivalence then followed. Study B: The term "ease of use" was used for clinical acceptability and utility of the needle-free system when it was buy imitrex assessed among 52 outpatients treating migraine attacks. Instructional materials were used as would be provided after ordinary prescription. The primary endpoint was successful use of the needle-free system to administer sumatriptan at the first attempt, including appropriate injection site selection. Second and subsequent uses of the needle-free system were also documented.

imitrex pill identifier 2017-02-16

For administration sites in the thigh and the abdomen, but not the arm, the needle-free and needle-based systems were bioequivalent (for all pharmacokinetic endpoints the mean ratios between the 2 devices were always between 90.1% and 115%). Among outpatients treating a migraine attack with the needle-free system, 51 of 52 on first attempt used the needle-free Avodart 1 Mg system successfully when treating a migraine attack.

imitrex pill form 2015-03-24

The efficacy and tolerability of subcutaneous (SC) sumatriptan administered with the IMITREX (sumatriptan succinate) STATdose System, which circumvents the need for patients or health care professionals to handle a syringe, were evaluated in two randomized, double-masked, parallel-group, placebo-controlled, multicenter studies. In the clinic, 158 adults with migraine diagnosed according to International Headache Society criteria received SC sumatriptan (6 mg) or placebo delivered with the IMITREX STATdose System for treatment of a migraine attack. By 120 minutes after SC dosing, 73% and 79% of sumatriptan-treated patients, compared with 28% and 37% of placebo-treated patients in studies 1 and 2, respectively, experienced headache relief (a statistically significant difference). Clinical disability scores 120 minutes after dosing showed that 75% and 85% of sumatriptan-treated patients, compared with 30% and 42% of placebo-treated patients, were normal or Tofranil Pm Reviews only mildly impaired (a statistically significant difference). Similar efficacy rates were observed for nausea, phonophobia, and photophobia. No serious or unusual adverse events occurred, and no clinically relevant abnormalities in laboratory test values were reported. Based on these results, we concluded that SC sumatriptan (6 mg) administered using the IMITREX STATdose System is effective for the treatment of migraine. The efficacy and tolerability profiles of SC sumatriptan administered with this device are similar to those reported for SC sumatriptan administered with a conventional syringe.

imitrex subq dosing 2016-06-01

In the comparison with commercially available intranasal sumatriptan 20 mg, DFN-02 had a more rapid absorption profile; tmax was 15 minutes for DFN-02 monodose, 10.2 minutes for DFN-02 multidose, and 2.0 hours for commercially available intranasal sumatriptan 20 mg. Compared with 4 and 6 mg subcutaneous sumatriptan, DFN-02's median tmax (10 minutes) was significantly earlier (15 minutes; P < .0001). Mean sumatriptan exposure metrics were similar for DFN-02 and 4 mg sumatriptan: AUC0-2 : 35.12 and 44 Diamox Generic Brand .82 ng*hour/mL, respectively; AUC0-∞ : 60.70 and 69.21 ng*hour/mL, respectively; Cmax : 51.79 and 49.07 ng/mL, respectively. With 6 mg subcutaneous sumatriptan, these exposure metrics were about 50% larger (AUC0-2 : 67.17 ng*hour/mL; AUC0-∞ : 103.78 ng*hour/mL; Cmax : 72.75 ng/mL). Inter-subject variability of AUC0-2 , AUC0-∞ , and Cmax was 42-58% for DFN-02, 15-22% for 4 mg subcutaneous sumatriptan, and 15-25% for 6 mg subcutaneous sumatriptan. DDM exposure was low (mean Cmax : 1.63 ng/mL), tmax was 30 minutes, and it was undetectable by 4 hours. There were no serious adverse events, discontinuations due to adverse events, or remarkable findings for vital signs, physical examinations (including nasal and injection site examinations), or clinical laboratory assessments. The overall incidence of adverse events was comparable across treatments, and all treatment-related events were mild in severity. Adverse events occurring in ≥10% of subjects were dysgeusia (19%), headache (18%), nausea (15%), paresthesia (15%), and dizziness (12%).

imitrex shot cost 2016-06-09

In healthy subjects, DFN-02, an intranasal spray containing 10 mg sumatriptan plus DDM, had a more rapid absorption profile than commercially available intranasal sumatriptan 20 mg, and systemic exposure from a single-dose administration of DFN-02 was similar to 4 mg SC sumatriptan and two-thirds that of 6 mg SC sumatriptan. With DFN-02, plasma sumatriptan peaked 5 minutes earlier than with both Clomid 4 Pills subcutaneous formulations. Systemic exposure to sumatriptan was similar with DFN-02 and 4 mg subcutaneous sumatriptan; both yielded lower systemic exposure than 6 mg subcutaneous sumatriptan. Systemic exposure to DFN-02's excipient DDM was short-lived. DFN-02's safety and tolerability appear to be comparable to subcutaneous sumatriptan. Addition of a permeation enhancer improved the absorption profile compared with commercially available intranasal sumatriptan 20 mg.

imitrex tabs 2017-09-04

Intranasal sumatriptan (Imitrex(®) ) may be an Mobic Capsules alternative for patients who refuse injections and cannot tolerate oral agents, but due to low bioavailability and slow absorption, the clinical utility of the currently marketed formulation is limited, highlighting an unmet need for an effective non-oral migraine medication with a rapid onset of action. To overcome the slow absorption profile associated with intranasal administration, we evaluated the impact of 1-O-n-Dodecyl-β-D-Maltopyranoside (DDM, Intravail A-3™), a permeation enhancer, on sumatriptan's pharmacokinetic profile by comparing the pharmacokinetic characteristics of two commercial sumatriptan products, 4 mg subcutaneous and 6 mg subcutaneous in healthy adults, with DFN-02 - a novel intranasal agent comprised of sumatriptan 10 mg plus 0.20% DDM. We also determined the pharmacokinetic characteristics of DDM and evaluated its safety and tolerability.

imitrex pill reviews 2015-05-08

The objective of this human factors study was to compare migraine patients' device use performance and preferences for three sumatriptan subcutaneous autoinjectors: a disposable two-step device (Zembrace(®) SymTouch(®)), a disposable three-step device (Sumavel(®) DosePro(®)), and a multistep reloadable device ( Claritin 45 Tablets Imitrex(®) STATdose(®)), using simulated injections.

imitrex shot dosage 2016-05-07

We conducted two studies: a randomized, three-way crossover study comparing monodose and multidose devices for delivery of single doses of DFN-02 with commercially available intranasal sumatriptan 20 mg in 18 healthy, fasted adults, and an open-label, randomized, single-dose, three-way crossover bioavailability study comparing DFN-02 with 4 mg and 6 mg subcutaneous sumatriptan in 78 healthy, fasted adults. In the study comparing DFN-02 with IN sumatriptan, subjects received a single dose of DFN-02 (sumatriptan 10 mg plus DDM 0.20%) via monodose and multidose delivery systems with at least 5 days between treatments. In the comparison with SC sumatriptan, subjects received a single dose of each treatment with at least 3 days between treatments. In both studies, blood was sampled for pharmacokinetic evaluation of sumatriptan and DDM Effexor 40 Mg through 24 hours post-dose; safety and tolerability were monitored throughout.

imitrex dosage oral 2016-01-13

Weight and BMI appear to be important covariates for sumatriptan exposure: subjects with lower values for either metric of body size have higher systemic exposure compared with subjects with higher values. Additional studies are required to determine if Abilify 75 Mg doses of subcutaneous sumatriptan may be adjusted based on BMI for comparable efficacy and a potentially improved tolerability profile.

imitrex tablet dose 2015-11-04

Sleep and headache have both generated curiosity within the human mind for centuries. The relationship between headache and sleep disorders is very complex. While Lieving in 1873 first observed that headaches were linked to sleep, Dexter and Weitzman in 1970 described the relationship between headache and sleep stages. Though our understanding of sleep and headache relationship has improved over the years with expanding knowledge in both fields and assessment tools such as polysomnography, it is still poorly understood. Headache and sleep have an interdependent relationship. Headache may be intrinsically related to sleep (migraine with and without aura, cluster headache, hypnic headache, and paroxysmal hemicrania), may cause sleep disturbance (chronic migraine, chronic tension-type headache, and medication overuse headache) or a manifestation of a sleep disorder like obstructive sleep apnea. Headache and sleep disorder may be a common manifestation of systemic dysfunction-like anemia and hypoxemia. Headaches may occur during sleep, after sleep, and in relation to different sleep stages. Lack of sleep and excessive sleep are both considered triggers for migraine. Insomnia is more common among chronic headache patients. Experimental data suggest that there is a common anatomic and physiologic substrate. There is overwhelming evidence that cluster headache and hypnic headaches are chronobiological disorders with strong association with sleep and involvement of hypothalamus. Cluster headache shows a circadian and circannual rhythmicity while hypnic headache shows an alarm clock pattern. There is also a preferential occurrence of cluster headache, hypnic headache, and paroxysmal hemicrania during REM sleep. Silencing of anti-nociceptive network of periaqueductal grey (PAG), locus ceruleus and dorsal raphe nucleus doing REM sleep may explain the preferential pattern. Sleep related headaches can be classified into (1) headaches with high association with obstructive sleep apnea, which includes cluster headache, hypnic headache, and headache related to obstructive sleep apnea; and (2) headaches with high prevalence of insomnia, medication overuse, and psychiatric comorbidity including chronic migraine and chronic tension-type headache. The initial step in the management of sleep related headache is proper diagnosis with exclusion of secondary headaches. Screening for sleep disorders with the use of proper tests including polysomnography and referral to sleep clinic, when appropriate is very helpful. Control Zoloft Dose Elderly of individual episode in less than 2 hours should be the initial goal using measures to abort and prevent a relapse. Cluster headache responds very well to injectable Imitrex and oxygen. Verapamil, steroids and lithium are used for preventive treatment of cluster headache. Intractable cluster headache patients have responded to hypothalamic deep brain stimulation. Hypnic headache patients respond to nightly caffeine, indomethacin, and lithium. Paroxysmal hemicrania responds very well to indomethacin. Early morning headaches associated with obstructive sleep apnea respond to CPAP or BiPAP with complete resolution of headache within a month. Patient education and lifestyle modification play a significant role in overall success of the treatment. Chronic tension-type headache and chronic migraine have high prevalence of insomnia and comorbid psychiatric disorders, which require behavioral insomnia treatment and medication if needed along with psychiatric evaluation. Apart from the abortive treatment tailored to the headache types, - such as triptans and DHE 45 for migraine and nonsteroidal anti-inflammatory medication for chronic tension-type headache, preventive treatment with different class of medications including antiepileptics (Topamax and Depakote), calcium channel blockers (verapamil), beta blockers (propranolol), antidepressants (amitriptyline), and Botox may be used depending upon the comorbid conditions.

imitrex 100mg tablet 2016-08-01

Although the primary endpoint only just failed, the results of this pragmatic outcomes study demonstrate SNC to have benefits over its concomitantly administered components in the Effexor 75 Mg acute treatment of migraine.

imitrex mg 2016-05-16

Sumatriptan succinate (SS) is a 5-HT1 receptor agonist used in the treatment of migraine having poor bioavailability (15%) due to its extensive first-pass effect. The aim of this work was to prepare SS sublingual fast dissolving thin films (SFDTFs) allowing the drug to directly enter the systemic circulation and bypassing the first-pass metabolism. Plain thin films were prepared using solvent casting technique adopting 2(3) × 3 factorial design to study the effect of polymer and plasticizer type and concentration on mechanical properties and in vitro disintegration time of the plain prepared films using Design-Expert®. Medicated films were prepared after addition of 35 mg SS to each of the two selected plain formulae (F6 and F7) having desirability values above 0.9 showing the values of: 0.038, 0.039 kgf/mm(2) and 156.24, 164.16% and 0.0248, 0.0240 kgf/mm(2) as tensile strength, percent elongation and elastic modulus, respectively. PVP K30 was efficient as crystallization inhibitor in retarding SS crystallization. Pharmacokinetic study of the optimum formula F7 (PVP K30:SS (1:1 w/w)) in healthy human volunteers using LC/MS/MS revealed a Feldene Medication Dosage shorter tmax (0.25 h) compared to Imitrex® tablet 25 mg (2 h) which is considered promising especially for the rapid relief of acute migraine attacks.

imitrex generic dosage 2015-09-26

A total of 54 subjects participated and each subject performed two simulated injections with each of the three devices. Most subjects preferred the two-step device (88.9%) to the three-step (13.0%) and the reloadable (1.9%). The two-step device had higher mean overall preference ratings (F (2, 159)=56.6, P<0.01) and higher ratings for ease of use, intuitiveness, convenience, portability, and control. The two-step device had a first injection full-dose delivery success rate of 44.4%, higher than both the reloadable (24.1%) and the three-step (3.7%) devices. The number of errors with the two-step device (n=3) was ~90% lower than the three-step (n=49) and reloadable (n=44) devices.

imitrex reviews 2017-07-14

Patients with moderate or severe head pain were randomized to receive either 1 mg of subcutaneous dihydroergotamine mesylate or 6 mg of subcutaneous sumatriptan succinate. Patients rated head pain, functional ability, nausea, and vomiting at baseline and at 0.5, 1, 2, 4, and 24 hours after the injection. Presence or absence of headache at 3 hours was calculated from collected data. If pain persisted after 2 hours, a second injection of the same study medication was allowed, and self-ratings were repeated 30 and 60 minutes later. Follow-up data were collected at 24 hours.

imitrex 15 mg 2015-02-16

Both weight and BMI correlated negatively with each exposure metric for each treatment group. Across all treatment groups, AUC0-2 for subjects with BMI less than or equal to median value was 1.03-1.12 times the value for subjects with BMI more than median value. For subjects with BMI less than or equal to median value receiving DFN-11, median AUC0-2 was slightly less than that for subjects with BMI more than median value receiving Imitrex 4 mg and larger than that for subjects with BMI more than median value receiving Imitrex 3 mg. Results were similar for the other exposure metrics and for weight. Exposure was higher in women than in men, which can be attributed in part to differences in weight. There was no relationship between exposure and age. For DFN-11, AUC0-2 and AUC0-∞ were lower in nonwhites compared with whites; the ratio of median values was 0.84 and 0.89, respectively. A similar, nonstatistically significant, trend was observed in the other products (ratio of median values ranging from 0.84 to 0.89).

imitrex injection cost 2015-02-19

In this human factors study, 54 migraineurs used simulated injections to compare three sumatriptan subcutaneous delivery devices. Zembrace SymTouch, a two-step device, was most preferred compared with Sumavel DosePro and Imitrex STATdose. It also ranked highest for ease of use and various other measures. In this study, migraine patients preferred the autoinjector that they rated as simpler and more intuitive.

imitrex dosing 2015-07-20

If you vomit with migraines, get full-blown migraines upon awakening, or want rapid relief without injections, consider a nasal spray. Options include triptans (zolmitriptan [Zomig] or sumatriptan [Imitrex]), DHE (Migranal), or an NSAID (Sprix).

imitrex alcohol 2016-02-04

There is no correlation between the use of sumatriptan for relief of migraine headaches and the generation of epithelial defects during LASIK. There appears to be no reason to stop triptans before proceeding with LASIK.

imitrex generic 2016-03-08

Sumatriptan and butorphanol nasal sprays are commonly used agents for the management of migraine headaches. Under certain circumstances, these two agents may be administered closely in time. However, the possibility of a pharmacokinetic interaction and the safety of this regime have not been examined. In this crossover design study, 24 healthy subjects received the following four treatments, each separated by at least 7 days: 1 mg butorphanol (Stadol NS7); 20 mg sumatriptan (Imitrex Nasal Spray); or both formulations together with butorphanol administered either 1 or 30 min after sumatriptan. Serial plasma samples were collected for 24 h post-dose and analysed for butorphanol and/or sumatriptan by HPLC-MS/MS. Butorphanol plasma concentrations were reduced when it was administered 1 min (mean 28.6% decrease in AUC(0-infinity)), but not 30 min, after sumatriptan. The pharmacokinetics of sumatriptan were not substantially altered by butorphanol. The combination of nasally administered sumatriptan and butorphanol appeared safe. However, if butorphanol nasal spray is administered <30 min after sumatriptan nasal spray, the analgesic effect of butorphanol may be diminished due to reduced nasal absorption resulting from probable transient vasoconstriction of nasal blood vessels by sumatriptan.