FDA Acts To Ensure Thyroid Drugs Don’t Lose Potency Before Expiration Date
The U.S. Food and Drug Administration is tightening the potency specifications for levothyroxine sodium, used to treat underactive thyroid glands and other thyroid conditions, to ensure the drug retains its potency over its entire shelf life. This action is being taken in response to concerns that the potency of the drug may deteriorate prior to its expiration date.
