OLMESARTAN MEDOXOMIL — olmesartan medoxomil tablet, film coated
Zydus Pharmaceuticals (USA) Inc.
Olmesartan medoxomil tablets are indicated for the treatment of hypertension in adults and children six years of age and older, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions. These benefits have been seen in controlled trials of antihypertensive drugs from a wide variety of pharmacologic classes including the class to which this drug principally belongs. There are no controlled trials demonstrating risk reduction with olmesartan medoxomil.
Control of high blood pressure should be part of comprehensive cardiovascular risk management, including, as appropriate, lipid control, diabetes management, antithrombotic therapy, smoking cessation, exercise, and limited sodium intake. Many patients will require more than one drug to achieve blood pressure goals. For specific advice on goals and management, see published guidelines, such as those of the National High Blood Pressure Education Program’s Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC).
Numerous antihypertensive drugs, from a variety of pharmacologic classes and with different mechanisms of action, have been shown in randomized controlled trials to reduce cardiovascular morbidity and mortality, and it can be concluded that it is blood pressure reduction, and not some other pharmacologic property of the drugs, that is largely responsible for those benefits. The largest and most consistent cardiovascular outcome benefit has been a reduction in the risk of stroke, but reductions in myocardial infarction and cardiovascular mortality also have been seen regularly.
Elevated systolic or diastolic pressure causes increased cardiovascular risk, and the absolute risk increase per mmHg is greater at higher blood pressures, so that even modest reductions of severe hypertension can provide substantial benefit. Relative risk reduction from blood pressure reduction is similar across populations with varying absolute risk, so the absolute benefit is greater in patients who are at higher risk independent of their hypertension (for example, patients with diabetes or hyperlipidemia), and such patients would be expected to benefit from more aggressive treatment to a lower blood pressure goal.
Some antihypertensive drugs have smaller blood pressure effects (as monotherapy) in black patients, and many antihypertensive drugs have additional approved indications and effects (e.g., on angina, heart failure, or diabetic kidney disease). These considerations may guide selection of therapy.
It may be used alone or in combination with other antihypertensive agents.
Dosage must be individualized. The usual recommended starting dose of Olmesartan medoxomil is 20 mg once daily when used as monotherapy in patients who are not volume-contracted. For patients requiring further reduction in blood pressure after 2 weeks of therapy, the dose of Olmesartan medoxomil may be increased to 40 mg. Doses above 40 mg do not appear to have greater effect. Twice-daily dosing offers no advantage over the same total dose given once daily.
For patients with possible depletion of intravascular volume (e.g., patients treated with diuretics, particularly those with impaired renal function), initiate Olmesartan medoxomil under close medical supervision and give consideration to use of a lower starting dose [see Warnings and Precautions (5.3)].
Dosage must be individualized. For children who can swallow tablets, the usual recommended starting dose of Olmesartan medoxomil is 10 mg once daily for patients who weigh 20 to < 35 kg (44 to 77 lb), or 20 mg once daily for patients who weigh ≥ 35 kg. For patients requiring further reduction in blood pressure after 2 weeks of therapy, the dose of Olmesartan medoxomil may be increased to a maximum of 20 mg once daily for patients who weigh < 35 kg or 40 mg once daily for patients who weigh ≥ 35 kg.
For children who cannot swallow tablets, the same dose can be given using an extemporaneous suspension as described below [see Clinical Pharmacology (12.3)]. Follow the suspension preparation instructions below to administer Olmesartan medoxomil as a suspension.
Preparation of Suspension (for 200 mL of a 2 mg/mL suspension)
Add 50 mL of Purified Water to an amber polyethylene terephthalate (PET) bottle containing twenty Olmesartan medoxomil 20 mg tablets and allow to stand for a minimum of 5 minutes. Shake the container for at least 1-minute and allow the suspension to stand for at least 1 minute. Repeat 1-minute shaking and 1-minute standing for four additional times. Add 100 mL of ORA-Sweet®* and 50 mL of ORA-Plus®* to the suspension and shake well for at least 1 minute. The suspension should be refrigerated at 2 to 8°C (36 to 46°F) and can be stored for up to 4 weeks. Shake the suspension well before each use and return promptly to the refrigerator.
* ORA-Sweet® and ORA-Plus® are registered trademarks of Paddock Laboratories, Inc.
- 5 mg white to off white, round, film coated biconvex tablet, debossed with ‘643’ on one side and plain on other side.
- 20 mg white to off white, round, film coated biconvex tablet, debossed with ‘644’ on one side and plain on other side.
- 40 mg white to off white, oval, film coated tablet, debossed with ‘645’ on one side and plain on other side.
Do not co-administer aliskiren with olmesartan medoxomil in patients with diabetes [see Drug Interactions (7.3)].
Use of drugs that act on the renin-angiotensin system (RAS) during the second and third trimesters of pregnancy reduces fetal renal function and increases fetal and neonatal morbidity and death. Resulting oligohydramnios can be associated with fetal lung hypoplasia and skeletal deformations. Potential neonatal adverse effects include skull hypoplasia, anuria, hypotension, renal failure, and death. When pregnancy is detected, discontinue olmesartan medoxomil as soon as possible [see Use in Specific Populations (8.1)].
Use of olmesartan medoxomil in children <1 year of age is not recommended. Drugs that act directly on the renin-angiotensin-aldosterone system (RAAS) can have effects on the development of immature kidneys [see Use in Specific Populations (8.4)].
In patients with an activated renin-angiotensin-aldosterone system, such as volume- and/or salt-depleted patients (e.g., those being treated with high doses of diuretics), symptomatic hypotension may be anticipated after initiation of treatment with olmesartan medoxomil. Initiate treatment under close medical supervision and consider starting at a lower dose. If hypotension does occur, place the patient in the supine position and, if necessary, give an intravenous infusion of normal saline [see Dosage and Administration (2.1)]. A transient hypotensive response is not a contraindication to further treatment, which usually can be continued without difficulty once the blood pressure has stabilized.
As a consequence of inhibiting the renin-angiotensin-aldosterone system, changes in renal function may be anticipated in susceptible individuals treated with olmesartan medoxomil In patients whose renal function may depend upon the activity of the renin-angiotensin-aldosterone system (e.g., patients with severe congestive heart failure), treatment with angiotensin converting enzyme (ACE) inhibitors and angiotensin receptor antagonists has been associated with oliguria and/or progressive azotemia and rarely with acute renal failure and/or death. Similar results may be anticipated in patients treated with olmesartan medoxomil [see Dosage and Administration (2.1) , Drug Interactions (7.3) , Use in Specific Populations (8.7) and Clinical Pharmacology (12.3)].
In studies of ACE inhibitors in patients with unilateral or bilateral renal artery stenosis, increases in serum creatinine or blood urea nitrogen (BUN) have been reported. There has been no long-term use of olmesartan medoxomil in patients with unilateral or bilateral renal artery stenosis, but similar results may be expected.
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