A member asked:

What vitamin supplements or herbs cause a slower heart rate?

A doctor has provided 1 answer

None: There aren't any that predictably slow the heart except foxglove which is the active ingredient in digitalis. Digitalis has a very narrow therapeutic window with toxicity occurring easily. Taking foxglove to slow the heart would be like talking into metal cans strung together instead of using a phone.

Answered 6/30/2018

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