Hyzaar is an effective strong preparation which is taken in treatment of hypertension disease. Hyzaar acts as anti-hypertension remedy. Hyzaar operates by reducing blood pressure.
Other names for this medication:
Also known as: Losartan.
Hyzaar is created by pharmacy specialists to combat hypertension disease. Target of Hyzaar is to control level of blood pressure.
Hyzaar acts as anti-hypertension remedy. Hyzaar operates by reducing blood pressure.
Hyzaar is also known as Losartan potassium, Hydrochlorothiazide, Cosart-H.
Hyzaar consists of Losartan and Hydrochlorothiazide. Losartan is an angiotensin II receptor antagonist. Hydrochlorothiazide is a diuretic.
Generic name of Hyzaar is Hydrochlorothiazide and Losartan.
Brand name of Hyzaar is Hyzaar.
You should take it orally with water.
It is better to take Hyzaar once a day at the same time with meals or without it.
If you want to achieve most effective results do not stop taking Hyzaar suddenly.
If you overdose Hyzaar and you don't feel good you should visit your doctor or health care provider immediately. Symptoms of Hyzaar overdosage: fainting, feeling lightheaded, rapid heartbeat.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F) away from moisture, light and heat. Keep container tightly closed. Throw away any unused medicine after the expiration date. Keep out of the reach of children.
The most common side effects associated with Hyzaar are:
Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.
Do not take Hyzaar if you are allergic to its components.
Do not take Hyzaar if you're pregnant or you plan to have a baby, or you are a nursing mother. Hyzaar can harm your baby.
Try to be careful with Hyzaar usage in case of having liver or kidney disease, heart failure, diabetes, asthma, high blood levels, lupus, gout.
Try to be careful with Hyzaar usage in case of taking such medication as diuretics; lithium as Eskalith, Lithobid; colestipol as Colestid; phenobarbital as Luminal, Solfoton; cholestyramine as Questran; aspirin; oral steroids as dexamethasone (Decadron, Dexone), prednisone (Deltasone), methylprednisolone (Medrol); insulin or oral medications for diabetes; nonsteroidal anti-inflammatory medications (NSAIDs); potassium supplements; medications for high blood pressure; narcotic pain medications.
Use Hyzaar with great care in case you want to undergo an operation (dental or any other).
If you want to achieve most effective results without any side effects it is better to avoid alcohol.
Do not stop taking Hyzaar suddenly.
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The aim of this study was to compare the differences in the levels of a highly sensitive cardiac troponin T (Hs-cTnT) between Losartan (LOS) plus hydrochlorothiazide (HCTZ) and amlodipine. Seventy-eight hypertensive patients were randomized to receive LOS/HCTZ or amlodipine for 8 weeks. Both treatments decreased clinic and 24-hour blood pressure to the same extent. The Hs-cTnT level was significantly reduced in the amlodipine group (P < .05), but such a reduction was not found in the LOS/HCTZ group in the upper half group of Hs-cTnT level at baseline. Amlodipine had a more beneficial effect than LOS/HCTZ in patients with high Hs-cTnT levels.
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A total of 1080 consecutive EH patients [662 males, mean age (60.9 +/- 12.3) years] who seeked for medical consultation in study hospitals in Fuzhou city during October 2004 and October 2006 were included in this study. The blood pressure before and after antihypertensive treatments were obtained in 1000 patients, and the renal function and electrolyte before and after antihypertensive treatments were obtained in 600 patients. Patients with SBP > 140 and/or DBP > 90 mm Hg 2 weeks after initial antihypertensive agents were cotreated with felodipine, patients with SBP > 140 and/or DBP > 90 mm Hg 4 weeks after initial antihypertensive agents were cotreated with beta and/or alpha blockers.
Hypertension management guidelines recommend titrating antihypertensive drugs stepwise every 4-6 weeks.We compared efficacy and safety of early versus late titration after 10 weeks' treatment with irbesartan/hydrochlorothiazide. Hypertensive patients uncontrolled on monotherapy were randomized into two groups. In the early titration group (E), patients received irbesartan/hydrochlorothiazide 150/12.5 mg for 2 weeks; uncontrolled patients were up-titrated to 300/25 mg at weeks 2 and 6. In the late titration group (L), patients received 150/12.5 mg for 6 weeks; uncontrolled patients were up-titrated to 300/25 mg at week 6 (W6). The change of mean systolic (SBP) and diastolic blood pressure (DBP) from baseline to week 10 (W10) were studied using a covariance analysis model. The percentage of controlled patients at W10 was compared between groups using Fisher's exact test. Of 833 patients enrolled from 14 countries, the intent-to-treat (ITT) population included 795 (mean age 58 +/- 12 years, female 60%, obesity 38%, diabetes 22%). AtW6, mean SBP decrease was: E - 28.8 mmHg vs L - 26.3 mmHg (p = 0.02). At W10, there was similar mean SBP decrease: E - 29.5 mmHg vs L- 31.0 mmHg (p = 0.14). The control rate at W10 was 58% (E) and 64% (L), p = 0.06. Serious adverse events were more frequent in E (2.5% vs 0.7%, p= 0.044). Both early and late titration regimens provide similar BP decrease and control rate.
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A method based on a simple liquid-liquid extraction (LLE) followed by high-performance liquid chromatography with negative ion electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS) detection was developed for the simultaneous determination of losartan (LOS) and hydrochlorothiazide (HCTZ) in human plasma, using valsartan (VAL) and chlorthalidone (CHTD) as an internal standard, respectively. The acquisition was performed in multiple reactions monitoring (MRM) and the limit of quantification was 4 ng/mL for both LOS and HCTZ. The method was linear in the studied range (4-800 ng/mL for LOS and 4-500 ng/mL for HCTZ). The intra-assay precisions ranged from 2.6-11.9% for LOS and 1.4-8.2% for HCTZ, while the inter-assay precisions ranged from 1.0-8.0% for LOS and 2.5-7.7% for HCTZ. The intra-assay accuracies ranged from 91.3 to 107.6% for LOS and 91.5 to 105.8% for HCTZ, while the inter-assay accuracies ranged from 99.9 to 106.4% for LOS and 97.4 to 101.4% for HCTZ. The analytical method was applied to a bioequivalence study, in which 28 healthy adult volunteers (14 men) received single oral doses (100 mg LOS + 25 mg HCTZ) of reference and test formulations, in an open, two-period, balanced randomized, crossover protocol. Based on the 90% confidence interval of the individual ratios for Cmax and AUC0-inf, it was concluded that the test formulation is bioequivalent to the reference Hyzaar formulation with respect to the rate and extent of absorption of both LOS and HCTZ.
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We examined whether the level of highsensitivity C-reactive protein (hsCRP), a marker of low-grade inflammation, predicted the response of clinic and ambulatory blood pressure (BP) to antihypertensive treatment.
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Twenty four hour blood pressure (BP) monitoring was carried out and structural state of left ventricular myocardium assessed in 20 patients with mild and moderate hypertension before and after 24 weeks of therapy with Hyzaar - fixed dose combination of losartan (50 mg) and hydrochlorothiazide (12.5 mg). According to data of 24-hour BP monitoring the use of Hyzaar was associated with lowering of diurnal (by 26.9/17.2+/-3/2 mm Hg, p<0.001), nocturnal (by 32.6/18.9+/-3/2 mm Hg, p<0.001), pulse (p<0.001) BP, and rate of morning systolic BP rise (p<0.05), decrease of nocturnal systolic and diastolic BP variability, and improvement of 24-hour BP rhythm. Trough/peak coefficients for systolic and diastolic BP (70 and 76%, respectively) reflected sufficient and steady hypotensive effect throughout 24 hours after single dose of Hyzaar. Target BP level was achieved in 70% of patients. At the background of 24-week treatment with Hyzaar left ventricular myocardial mass index significantly decreased (from 120.1+/-3.5 to 108.6+/-3.1 g/m2, D=11.5+/-1.0, p<0.001) and became normal in 60% of patients. Correlation analysis revealed independence of cardioprotective action of therapy from its hypotensive activity. Thus therapy with Hyzaar produced hypotensive and cardioprotective effects which were independent from each other.
Losartan + HCTZ was as effective as bisoprolol + HCTZ, with target office BP achieved in 96.9% and 92.6% of patients and target 24-hour BP in 75% and 66.7% of patients, respectively, after 6 months. Effective treatment of BP led to significant lowering of central systolic BP, but this was decreased to a significantly (P < 0.05) greater extent by losartan + HCTZ (-23.0 ± 2.3 mmHg) than by bisoprolol + HCTZ (-15.4 ± 2.9 mmHg) despite equal lowering of brachial BP. Factors correlated with central systolic BP and its lowering differed between the treatment groups. Losartan + HCTZ did not alter arterial stiffness patterns significantly, but bisoprolol + HCTZ significantly increased AIx. We noted differences in ΔPWVE, ΔPWVM, and ΔAIx between the groups in favor of losartan + HCTZ. Decreased heart rate was associated with higher central systolic BP and AIx in the bisoprolol + HCTZ group, but was not associated with increased AIx in the losartan + HCTZ group.
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We have previously shown that an association of losartan and hydrochlorothiazide, initiated 1 mo after 5/6 nephrectomy (Nx), reversed hypertension and albuminuria and promoted lasting renoprotection. In this new study, we investigated whether equal or even better protection could be obtained by combining losartan and furosemide. Nx was performed in 58 Munich-Wistar rats. One month later, tail-cuff pressure and albuminuria were markedly elevated. At this time, Nx rats were distributed among the following four groups: untreated Nx rats, Nx rats that received losartan, Nx rats that received losartan + hydrochlorothiazide, and Nx rats that received losartan + furosemide. Seven months later, Nx rats exhibited high mortality, severe hypertension, albuminuria, glomerulosclerosis, and interstitial fibrosis. Losartan treatment limited mortality and attenuated the renal and hemodynamic abnormalities associated with Nx. As previously shown, the losartan + hydrochlorothiazide association normalized tail-cuff pressure and albumin, prevented renal injury, and reduced mortality to zero. The losartan + furosemide treatment failed to reduce tail-cuff pressure or albumin to normal and prevented renal injury less efficiently than the losartan and hydrochlorothiazide regimen. The reasons for the differing efficacies of the losartan + furosemide and losartan + hydrochlorothiazide schemes are unclear and may include beneficial nondiuretic actions of thiazides, such as vasorelaxation and antiproliferative activity. These results refute the established concept that thiazides and thiazide-like diuretics are ineffective at advanced chronic kidney disease stages. Rather, they suggest that, in view of their renoprotective action, these compounds may even be preferable to loop diuretics in the management of hypertension in advanced chronic kidney disease.
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Switching to LOS/HCTZ provides a greater reduction in clinic and home BP in patients with uncontrolled hypertension. This combination therapy may lead to cardio-, reno protection and improve UA metabolism.
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A Markov model was developed to assess the cost-effectiveness of SBP reduction compared with no reduction in patients with mild hypertension and low CVD risk. Modified SCORE (Systematic Coronary Risk Evaluation) risk estimates were used to predict fatal and nonfatal CVD events. We analyzed scenarios for different age groups, sexes, and SBP reductions. Specifically, SBP reductions due to hydrochlorothiazide (HCT) 25 mg and hypothetical reductions with HCT 12.5 mg-losartan 50 mg combination were assumed. Parameter uncertainty was assessed through a probabilistic sensitivity analysis.
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Randomized, open-label, crossover, bioavailability studies were conducted separately in healthy Asian Indian and Japanese volunteers. One tablet either of test or of reference product was administered after 10 hours of overnight fasting. After dosing, serial blood samples were collected for a period of 48 hours for both the studies. Plasma samples were analyzed for losartan, losartan carboxylic acid and hydrochlorothiazide by a validated liquid chromatographic and mass spectrometric method (LC-MS/MS). The pharmacokinetic parameters AUC0-t, AUC0-∞, Cmax, tmax, and other pharmacokinetics parameters were determined from plasma concentration-time profiles for both test and reference formulations of losartan/hydrochlorothiazide 50 + 12.5 mg tablets. Statistical evaluations were done to evaluate bioequivalence between generic test formulation (EPR0001) and Japanese reference product (Preminent®).
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Single-pill fixed-dose combination therapy using Preminent(®) showed significant 24-h BP-lowering effects and was safe when compared with CodioMD(®).
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In a 10-year horizon, in scenarios of SBP reduction with HCT 25 mg, the incremental cost-effectiveness ratio (ICER) estimates for men varied across different ages in the range of €6032 to €58,217 per life-year gained, whereas for women ICER estimates were in the range of €12,345 to €361,064 per life-year gained. In a lifetime horizon, the cost-effectiveness estimates were favorable for both sexes. In scenarios of hypothetical SBP reductions, more favorable ICER estimates compared with no reduction were found. A large uncertainty around the cost-effectiveness estimates was observed among all scenarios.
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Achieving adequate blood pressure (BP) control often requires more than one antihypertensive agent. The purpose of this study was to determine whether a fixed-dose formulation of losartan (LOS) plus hydrochlorothiazide (HCTZ) (LOS/HCTZ) is effective in achieving a greater BP lowering in patients with uncontrolled hypertension.
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More frequent RF in hypertensive patients are the following: high blood cholesterol (86.7%), left ventricular hypertrophy (53.2%), familial history of AH (74.2%). A combination of three and two RF occurs in 49.1 and 37% hypertensive patients, respectively. A 6-month treatment with Hyzaar lowered systolic blood pressure by 28.4 mm Hg and diastolic one by 15.4 mm Hg. The target blood pressure was achieved in 83.5%. Real clinical practice showed that administration of a target Hyzaar dose for 6 months leads to a 6.5% regress of left ventricular hypertrophy, an 11% decrease of total cholesterol, a 4% decrease of glucose and a 8.9% decrease of uric acid.
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Baseline low-grade inflammation in patients with hypertension was associated with a poor ambulatory BP response, especially with losartan/HCTZ treatment. Initial measurement of hsCRP could be useful for selection of an appropriate antihypertensive drug.
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Losartan, losartan carboxylic acid and hydrochlorothiazide were well tolerated by subjects in all periods of each study under fasted conditions. No serious adverse events were observed. The ratios of least square means for AUC0-t and Cmax and the affiliated 90% confidence intervals were within acceptance range recommended by PMDA. Marginal differences were observed in pharmacokinetic values of Asian Indian and Japanese volunteers.
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This Web-based system may provide useful information when a new drug is first released into the market. Treatment with Lo/HCTZ enabled a substantial proportion of hypertensive patients to achieve the recommended goal of < 140/90 mmHg.
In patients with diabetes, sodium reabsorption in the renal tubules is enhanced, which leads to the development of salt-sensitive hypertension. Therefore, the concurrent use of a diuretic that promotes sodium excretion can increase the antihypertensive effects of other drugs. This study demonstrated that switching from high-dose ARB treatment to losartan/hydrochlorothiazide combination therapy results in significant control of blood pressure.
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Previous studies have demonstrated that antihypertensive treatment resets baroreflex control of heart rate (HR) and increases cardiac vagal baroreflex sensitivity. However, it is uncertain whether baroreflex control of muscle sympathetic nerve activity (MSNA) also resets after treatment. We tested the hypothesis that chronic antihypertensive therapy alters baroreflex regulation of MSNA in patients with untreated moderate hypertension. Seven newly diagnosed patients with systolic blood pressure (BP) of 159+/-5 mm Hg (mean+/-SE) and diastolic BP of 103+/-4 mm Hg were studied before and after 1 to 2 weeks ' and 3 months (chronic) of antihypertensive treatment with losartan-hydrochlorothiazide (Hyzaar). MSNA and hemodynamics were measured supine, during a Valsalva maneuver (VM), and at 70 degrees head-up tilt (HUT) for 10 minutes. Data were compared with those obtained in 7 age-matched healthy controls. We found that Hyzaar lowered mean BP acutely and chronically by 20+/-4 and 23+/-3 mm Hg (both P<0.01) but did not change HR. Supine MSNA increased by 43+/-11% and 34+/-11% after acute and chronic treatment (both P<0.01). However, MSNA responses to VM and HUT did not differ after treatment compared with before treatment, indicating unchanged reflex control. These data indicate that sympathetic neural activity was augmented substantially by antihypertensive treatment with Hyzaar, consistent with an ongoing baroreflex unloading, and did not return to baseline or "reset" after 3 months of therapy. We speculate that persistent and marked sympathetic activation by the baroreflex may be a potential mechanism for hypertension that is refractory to antihypertensive therapy and may provide a target mechanism for persistent morbidity despite adequate BP control.
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Timing can greatly affect the response to a stimulus, including antihypertensive medications. Herein, we assess the response of 30 patients to losartan/hydrochlorothiazide (L/H), administered for at least 1 month at a given circadian stage to each patient, this stage being changed during consecutive spans to cover six treatment times from awakening to bedtime at approximately 3-hour intervals. At the end of each stage, each patient underwent a 7-day around-the-clock ambulatory blood pressure (BP) profile, analyzed chronobiologically. A larger reduction of the midline estimating statistic of rhythm (MESOR; a rhythm-adjusted mean) of diastolic BP was achieved by L/H administration in the early morning for more patients (P < .05), while treatment upon awakening was the best choice for most patients to reduce the circadian amplitude of BP the most (P < .01). The optimal treatment time varied considerably among patients, however. Special attention should be given to the effect on the circadian amplitude since treatment can increase it above a threshold, beyond which there is a marked increase in cardiovascular disease risk. The results indicate the desirability to individualize the optimization of the antihypertensive effect of L/H by timing along the circadian scale.
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