Nisoldipine
Generic Name: nisoldipine
Brand Names:
Sular
DESCRIPTION SULAR ® (nisoldipine) is an extended release tablet dosage form of the dihydropyridine calcium channel blocker nisoldipine. Nisoldipine is 3,5-pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-, methyl 2-methylpropyl ester, C 20 H 24 N 2 O 6 , and has the structural formula: Nisoldipine is a yellow crystalline substance, practically insoluble in water but soluble in ethanol. It has a molecular weight of 388.4.
Overview
DESCRIPTION SULAR ® (nisoldipine) is an extended release tablet dosage form of the dihydropyridine calcium channel blocker nisoldipine. Nisoldipine is 3,5-pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-, methyl 2-methylpropyl ester, C 20 H 24 N 2 O 6 , and has the structural formula: Nisoldipine is a yellow crystalline substance, practically insoluble in water but soluble in ethanol. It has a molecular weight of 388.4.
Uses
INDICATIONS AND USAGE SULAR is indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive agents.
Dosage
DOSAGE AND ADMINISTRATION The dosage of SULAR must be adjusted to each patient's needs. Therapy usually should be initiated with 17 mg orally once daily, then increased by 8.5 mg per week or longer intervals, to attain adequate control of blood pressure. Usual maintenance dosage is 17 to 34 mg once daily. Blood pressure response increases over the 8.5 - 34 mg daily dose range but adverse event rates also increase. Doses beyond 34 mg once daily are not recommended. SULAR has been used safely with diuretics, ACE inhibitors, and beta-blocking agents. Patients over age 65, or patients with impaired liver function, are expected to develop higher plasma concentrations of nisoldipine. Their blood pressure should be monitored closely during any dosage adjustment.
Side Effects
ADVERSE EXPERIENCES More than 6000 patients world-wide have received nisoldipine in clinical trials for the treatment of hypertension, either as the immediate release or the SULAR extended release formulation. Of about 1,500 patients who received SULAR in hypertension studies, about 55% were exposed for at least 2 months and about one third were exposed for over 6 months, the great majority at doses equivalent to 17 mg and above. SULAR is generally well-tolerated. In the U.S. clinical trials of SULAR in hypertension, 10.9% of the 921 SULAR patients discontinued treatment due to adverse events compared with 2.9% of 280 placebo patients.
Interactions
Drug Interactions A 30 to 45% increase in AUC and C max of nisoldipine was observed with concomitant administration of cimetidine 400 mg twice daily. Ranitidine 150 mg twice daily did not interact significantly with nisoldipine (AUC was decreased by 15 - 20%). No pharmacodynamic effects of either histamine H 2 receptor antagonist were observed. CYP3A4 inhibitors and inducers SULAR is substrate of CYP3A4 and coadministration of SULAR with any known inducer or inhibitor of CYP3A4 should be avoided in general. Coadministration of phenytoin with a dose bioequivalent to 34 mg SULAR tablets in epileptic patients lowered the nisoldipine plasma concentrations to undetectable levels.
Warnings
WARNINGS Increased angina and/or myocardial infarction in patients with coronary artery disease: Rarely, patients, particularly those with severe obstructive coronary artery disease, have developed increased frequency, duration and/or severity of angina, or acute myocardial infarction on starting calcium channel blocker therapy or at the time of dosage increase. The mechanism of this effect has not been established. In controlled studies of SULAR in patients with angina this was seen about 1.5% of the time in patients given nisoldipine, compared with 0.9% in patients given placebo. CONTRAINDICATIONS SULAR is contraindicated in patients with known hypersensitivity to dihydropyridine calcium channel blockers.
Pregnancy
Pregnancy Nisoldipine was neither teratogenic nor fetotoxic at doses that were not maternally toxic. Nisoldipine was fetotoxic but not teratogenic in rats and rabbits at doses resulting in maternal toxicity (reduced maternal body weight gain). In pregnant rats, increased fetal resorption (postimplantation loss) was observed at 100 mg/kg/day and decreased fetal weight was observed at both 30 and 100 mg/kg/day. These doses are, respectively, about 5 and 16 times the MRHD when compared on a mg/m 2 basis.
Storage
HOW SUPPLIED SULAR extended release tablets are supplied as 8.5 mg and 17 mg round film coated tablets and 34 mg elliptic film coated tablets. The different strengths can be identified as follows: Strength Color Markings 8.5 mg Oyster SCI 500 17 mg Yellow Cream SCI 501 34 mg Burnt Orange SCI 503 SULAR Tablets are supplied in bottles of 100: NDC Code Strength 70515-500-10 8.5 mg 70515-501-10 17 mg...
Frequently Asked Questions
What is Nisoldipine used for?▼
INDICATIONS AND USAGE SULAR is indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive agents.
What are the side effects of Nisoldipine?▼
ADVERSE EXPERIENCES More than 6000 patients world-wide have received nisoldipine in clinical trials for the treatment of hypertension, either as the immediate release or the SULAR extended release formulation. Of about 1,500 patients who received SULAR in hypertension studies, about 55% were exposed for at least 2 months and about one third were exposed for over 6 months, the great majority at doses equivalent to 17 mg and above. SULAR is generally well-tolerated. In the U.S. clinical trials of SULAR in hypertension, 10.9% of the 921 SULAR patients discontinued treatment due to adverse events compared with 2.9% of 280 placebo patients.
Can I take Nisoldipine during pregnancy?▼
Pregnancy Nisoldipine was neither teratogenic nor fetotoxic at doses that were not maternally toxic. Nisoldipine was fetotoxic but not teratogenic in rats and rabbits at doses resulting in maternal toxicity (reduced maternal body weight gain). In pregnant rats, increased fetal resorption (postimplantation loss) was observed at 100 mg/kg/day and decreased fetal weight was observed at both 30 and 100 mg/kg/day. These doses are, respectively, about 5 and 16 times the MRHD when compared on a mg/m 2 basis.
What are the important warnings for Nisoldipine?▼
WARNINGS Increased angina and/or myocardial infarction in patients with coronary artery disease: Rarely, patients, particularly those with severe obstructive coronary artery disease, have developed increased frequency, duration and/or severity of angina, or acute myocardial infarction on starting calcium channel blocker therapy or at the time of dosage increase. The mechanism of this effect has not been established. In controlled studies of SULAR in patients with angina this was seen about 1.5% of the time in patients given nisoldipine, compared with 0.9% in patients given placebo. CONTRAINDICATIONS SULAR is contraindicated in patients with known hypersensitivity to dihydropyridine calcium channel blockers.
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.