FDA Acting Against Unapproved Thyroid Meds

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FDA says it plans to take action against unapproved animal-derived thyroid medications. An online statement outlines the agency’s concerns with the unapproved medications, saying tablets made from the same manufacturing batches may not always provide the same thyroid hormone levels, and thyroid medications derived from animal thyroid glands have an increased risk of certain impurities due to the source or the way it is manufactured.

“The agency has received complaints from patients and reports of adverse events related to the safety and potency of these unapproved medications,” FDA says.

The statement includes a link to letters the agency sent on 8/6 to manufacturers, importers, and distributors of marketed unapproved animal-derived thyroid medications, notifying them of the agency’s intent to act against the unapproved meds. The letters say FDA expects it will take up to 12 months for doctors to successfully transition patients to an FDA-approved thyroid hormone replacement drug.

“Manufacturers, importers, and distributors of unapproved animal-derived thyroid medications may be subject to compliance action if they commercially distribute their unapproved products,” the notice says. It also notes that unapproved animal-derived thyroid medications may not be compounded because they are regulated as biologics.

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