Reviews and Information for Metoprolol (Drug)
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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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
Can magnesium supplements reduce heart palpitations or PVCs?
Having low blood levels of magnesium has been associated with abnormal heart rhythms known as PVCs (premature ventricular complexes). Find out if taking magnesium supplements can help.
CL Answer
Do any supplements help for varicose veins or chronic venous insufficiency?
Find out which supplements help for varicose veins and chronic venous insufficiency, including citrus bioflavonoids and grape seed extract.
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
December 26, 2008
Generic Manufacturer Suspends Production of All Tablets -- Including Generic Metoprolol Succinate ER
On December 23, 2008, KV Pharmaceutical advised the FDA that it voluntarily suspended all shipments of all of its FDA approved drug products in tablet form, including Metoprolol Succinate ER 100 mg and 200 mg products. [See related ConsumerLab.com Drug Investigation of Metoprolol Succinate ER.
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.
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.
