Drug Catalog - Product Detail
METOPROLOL SUCCINATE ER TB 50MG 1000
| NDC | Mfr | Size | Str | Form |
|---|---|---|---|---|
| 62037-0831-10 | ACTAVIS PHARMA | 1000 | 50MG | TABLET |
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Description
11 DESCRIPTION Metoprolol succinate is a beta 1 -selective (cardioselective) adrenoceptor blocking agent, for oral administration, available as extended release tablets. Metoprolol succinate extended-release tablets USP have been formulated to provide a controlled and predictable release of metoprolol for once-daily administration. The tablets comprise a multiple unit system containing metoprolol succinate in a multitude of controlled release pellets. Each pellet acts as a separate drug delivery unit and is designed to deliver metoprolol continuously over the dosage interval. The tablets contain 23.75, 47.5, 95 and 190 mg of metoprolol succinate equivalent to 25, 50, 100 and 200 mg of metoprolol tartrate, USP, respectively. Its chemical name is (±)1-(isopropylamino)-3-[p-(2-methoxyethyl) phenoxy]-2-propanol succinate (2:1) (salt). Its structural formula is: Metoprolol succinate is a white crystalline powder with a molecular weight of 652.8. It is freely soluble in water; soluble in methanol; sparingly soluble in ethanol; slightly soluble in dichloromethane and 2-propanol; practically insoluble in ethyl-acetate, acetone, diethylether and heptane. Inactive ingredients: cellulose acetate butyrate, corn starch, crospovidone, glyceryl monostearate, hypromellose, methacrylic acid copolymer, microcrystalline cellulose, poloxamer 188, polyethylene glycol, polysorbate 80, sucrose, and titanium dioxide. USP Dissolution test is pending. Structural Formula for Metoprolol Succinate
How Supplied
Indications & Usage
1 INDICATIONS AND USAGE Metoprolol succinate is a beta1-selective adrenoceptor blocking agent. Metoprolol succinate extended-release tablets USP are indicated for the treatment of: Hypertension ( 1.1 ) Angina Pectoris ( 1.2 ) Heart Failure - for the treatment of stable, symptomatic (NYHA Class II or III) heart failure of ischemic, hypertensive, or cardiomyopathic origin.( 1.3 ) 1.1 Hypertension Metoprolol succinate extended-release tablets USP are indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive agents [see Dosage and Administration (2) ] . 1.2 Angina Pectoris Metoprolol succinate extended-release tablets USP are indicated in the long-term treatment of angina pectoris, to reduce angina attacks and to improve exercise tolerance. 1.3 Heart Failure Metoprolol succinate extended-release tablets USP are indicated for the treatment of stable, symptomatic (NYHA Class II or III) heart failure of ischemic, hypertensive, or cardiomyopathic origin. It was studied in patients already receiving ACE inhibitors, diuretics, and, in the majority of cases, digitalis. In this population, metoprolol succinate extended-release tablets decreased the rate of mortality plus hospitalization, largely through a reduction in cardiovascular mortality and hospitalizations for heart failure.
Dosage and Administration
2 DOSAGE AND ADMINISTRATION Metoprolol succinate is an extended release tablet intended for once daily administration. For treatment of hypertension and angina, when switching from immediate release metoprolol to metoprolol succinate extended-release tablets, use the same total daily dose of metoprolol succinate extended-release tablets. Individualize the dosage of metoprolol succinate extended-release tablets. Titration may be needed in some patients. Metoprolol succinate extended-release tablets are scored and can be divided; however, do not crush or chew the whole or half tablet. Administer once daily. Dosing of metoprolol succinate extended-release tablets should be individualized. ( 2 ) Heart Failure: Recommended starting dose is 12.5 mg or 25 mg doubled every two weeks to the highest dose tolerated or up to 200 mg. ( 2.3 ) Hypertension: Usual initial dosage is 25 to 100 mg once daily. The dosage may be increased at weekly (or longer) intervals until optimum blood pressure reduction is achieved. Dosages above 400 mg per day have not been studied. ( 2.1 ) Angina Pectoris: Usual initial dosage is 100 mg once daily. Gradually increase the dosage at weekly intervals until optimum clinical response has been obtained or there is an unacceptable bradycardia. Dosages above 400 mg per day have not been studied. ( 2.2 ) Switching from immediate release metoprolol to metoprolol succinate extended-release tablets: use the same total daily dose of metoprolol succinate extended-release tablets. ( 2 ) 2.1 Hypertension Adults : The usual initial dosage is 25 to 100 mg daily in a single dose. The dosage may be increased at weekly (or longer) intervals until optimum blood pressure reduction is achieved. In general, the maximum effect of any given dosage level will be apparent after 1 week of therapy. Dosages above 400 mg per day have not been studied. Pediatric Hypertensive Patients > 6 Years of age : Due to AstraZeneca’s marketing exclusivity rights, this generic drug product is not labeled for pediatric use. Dosage and administration information in pediatric patients 6 years and older is approved for AstraZeneca’s metoprolol succinate extended-release tablets. Metoprolol succinate extended-release is not recommended in pediatric patients < 6 years of age [ see Use in Specific Population ( 8.4 ) ] 2.2 Angina Pectoris Individualize the dosage of metoprolol succinate extended-release tablets. The usual initial dosage is 100 mg daily, given in a single dose. Gradually increase the dosage at weekly intervals until optimum clinical response has been obtained or there is a pronounced slowing of the heart rate. Dosages above 400 mg per day have not been studied. If treatment is to be discontinued, reduce the dosage gradually over a period of 1 - 2 weeks [see Warnings and Precautions (5) ] . 2.3 Heart Failure Dosage must be individualized and closely monitored during up-titration. Prior to initiation of metoprolol succinate extended-release tablets, stabilize the dose of other heart failure drug therapy. The recommended starting dose of metoprolol succinate extended-release tablets is 25 mg once daily for two weeks in patients with NYHA Class II heart failure and 12.5 mg once daily in patients with more severe heart failure. Double the dose every two weeks to the highest dosage level tolerated by the patient or up to 200 mg of metoprolol succinate extended-release tablets. Initial difficulty with titration should not preclude later attempts to introduce metoprolol succinate extended-release tablets. If patients experience symptomatic bradycardia, reduce the dose of metoprolol succinate extended-release tablets. If transient worsening of heart failure occurs, consider treating with increased doses of diuretics, lowering the dose of metoprolol succinate extended-release tablets or temporarily discontinuing it. The dose of metoprolol succinate extended-release tablets should not be increased until symptoms of worsening heart failure have been stabilized.