Supplementation Possibly Helpful
There is some evidence that beta-blockers (specifically propranolol, metoprolol, and alprenolol) might impair the body's ability to utilize the substance coenzyme Q
This is particularly worrisome, because CoQ
appears to play a significant role in normal heart function.
Depletion of CoQ
might be responsible for some of the side effects of beta-blockers. In one study, CoQ
supplements reduced side effects caused by the beta-blocker propranolol.
The beta-blocker timolol may interfere with CoQ
production to a lesser extent than other beta-blockers.