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Toprol vs. Generic Metoprolol

Toprol vs Generic Metoprolol

Serious problems have been reported by some people who switched from the popular blood pressure medication Toprol XL to generic versions of metoprolol succinate extended-release, including dramatic increases blood pressure, heart rate, nausea, and dizziness. Read our review to learn more.

Toprol vs. Generic Metoprolol Review

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News Release

April 16, 2008

FDA's investigation of generic antidepresssant called inadequate by ConsumerLab.com and The People's Pharmacy

WHITE PLAINS, NEW YORK AND DURHAM, NORTH CAROLINA — APRIL 16, 2008 — After waiting more than six months for results of the FDA's investigation of a generic version of Wellbutrin XL 300 (Budeprion XL 300), ConsumerLab.

Clinical Update

1/18/2014

Green Tea "Blocks" Beta-Blocker

A new study shows that drinking green tea can drastically reduce the amount of a beta-blocker (nadolol, Corgard) absorbed into the bloodstream. Beta-blockers are typically taken to lower blood pressure, raising concern for people using green tea along with this beta-blocker and, possibly, related medications. Get the details, along with our tests of green tea drinks and supplements, in the update to the Green Tea Review >>   

If you take a beta-blocker (which includes the popular drugs metoprolol (Lopressor, Toprol) and propranolol (Inderal)), be aware that chromium and CoQ10 may offer benefits.

CL Answer

What is the best way to take melatonin to get a good night's sleep?

Learn more about the best way to take melatonin for better sleep. When to take it, how to take it, and general melatonin information.

Melatonin Review 2024

Recalls & Warnings

June 25, 2014

More Generic Versions of Heart Medication Recalled

As reported in the New York Times on June 24, 2014, certain lots of the blood pressure medication metoprolol succinate extended-release have recently been recalled. The recalling manufacturers are the Indian companies Dr. Reddy's Laboratories and Wockhardt.

CL Answer

Which supplements and lifestyle changes improve sleep, and which cause insomnia?

Find out which vitamins may help you sleep and learn if any vitamins or supplements can cause insomnia.

News Release

March 17, 2008

As problems surface, Consumerlab.com and the people's pharmacy ask FDA to disclose differences between generic and original drugs

WHITE PLAINS, NEW YORK AND DURHAM, NORTH CAROLINA — MARCH 17, 2008 — An investigation by ConsumerLab.

Recalls & Warnings

January 30, 2009

Generic Toprol XL (Metoprolol Succinate ER) Recalled Along with 60 Other Drugs

On January 28, 2009, ETHEX Corporation, a subsidiary of KV Pharmaceutical, announced a nationwide recall at the retail level of all strengths of Metoprolol Succinate ER tablets (25 mg, 50 mg, 100 mg and 200 mg).

Recalls & Warnings

August 28, 2008

FDA Finds Fault with Generic Toprol XL -- Problems Reported Earlier by ConsumerLab.com

On August 12, 2008, the U.S. FDA sent a letter to Sandoz Inc. warning of violations in its manufacture of Metoprolol Succinate ER tablets and other drug products. Sandoz's Metoprolol Succinate ER tablets are generic versions of Toprol XL.