Patented Technology

Trust in the reliable technology of original TOPROL-XL

AstraZeneca has been manufacturing original TOPROL-XL® (metoprolol succinate) with quality and commitment for more than 20 years.

Once-daily TOPROL-XL is a beta-blocker indicated for the treatment of hypertension, alone or in combination with other antihypertensives.1

Both TOPROL-XL and its authorized generic* use a patented extended-release technology2

TOPROL-XL and its authorized generic,* metoprolol succinate (distributed by Par Pharmaceutical), are available in extended-release tablets with oral administration, providing 24-hour hypertension treatment with 1 dose daily.1

TOPROL-XL Extended Release Tablets

*Manufactured for Par Pharmaceutical Companies, Inc by AstraZeneca AB, Södertälje, Sweden.

Mean steady-state plasma concentrations3

TOPROL-XL maintained consistent plasma levels vs immediate-release metoprolol and immediate-release atenolol over 24 hours.3

Mean steady-state plasma concentrations

Copyright ©1990 by The Journal of Clinical Pharmacology. Adapted by permission of SAGE Publications.

  • Metoprolol is a beta1-selective (cardioselective) adrenergic-receptor-blocking agent, and at higher concentrations it also inhibits beta2-adrenoreceptors1

Dosage and Efficacy

3035818 Last Updated 11/14

Important Safety Information About TOPROL-XL

WARNING: ISCHEMIC HEART DISEASE: Following abrupt cessation of therapy with beta-blocking agents, exacerbations of angina pectoris and myocardial infarction have occurred. Warn patients against interruption or discontinuation of therapy without the physician’s advice. See WARNINGS: Metoprolol Succinate; Ischemic Heart Disease in the full PI.

  • TOPROL-XL is contraindicated in severe bradycardia, heart block of second or third degree, cardiogenic shock, decompensated cardiac failure, sick sinus syndrome (unless permanent pacemaker is in place), and in patients who are hypersensitive to any component of this product
  • Worsening cardiac failure may occur during up-titration of TOPROL-XL
  • TOPROL-XL should be used with caution in patients who have bronchospastic disease, pheochromocytoma, diabetes and hypoglycemia, hepatic impairment, thyrotoxicosis, peripheral vascular disease, those who take calcium channel blockers of the verapamil and diltiazem type, or those who are undergoing major surgery
  • Avoid initiation of high-dose TOPROL-XL in patients undergoing non-cardiac surgery
  • Patients taking beta blockers with a history of anaphylactic reaction may be unresponsive to the usual doses of epinephrine used to treat allergic reactions
  • The most common adverse reactions were tiredness, dizziness, depression, shortness of breath, bradycardia, hypotension, diarrhea, pruritus, and rash
Indication for TOPROL-XL

TOPROL-XL is indicated for the treatment of hypertension, alone or in combination with other antihypertensives; the long-term treatment of angina pectoris; and the treatment of stable, symptomatic (NYHA class II or III) heart failure of ischemic, hypertensive, or cardiomyopathic origin.

*When patients order a 3-month supply (90 pills). Taxes may apply.

Patients do not need to have insurance. Medicare and Medicaid patients are also eligible. Medicare Part D prescription orders will be processed without the use of insurance and cannot be applied to true out-of-pocket (TrOOP) costs. Prescription required.

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Click here for full Prescribing InformationAdobe Reader PDF document for TOPROL-XL, including Boxed WARNING regarding Ischemic Heart Disease.

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Visit or call 1-800-FDA-1088.