The FDA has published 11 recalls involving Levothyroxine, Liothyronine since 2014. The latest was reported on 2 Jun 2021. Most were for potency & assay. Acella Pharmaceuticals has the most recalls in this group. Recalls usually affect specific lots, not every bottle on the market. Check the lot number on each recall page before acting.
Should you stop taking Levothyroxine, Liothyronine?
Not on your own. Most recalls affect specific lots from one manufacturer, and stopping a prescription suddenly can be riskier than the defect. Check your lot number and NDC against the recall, then call the pharmacy that dispensed it for a replacement.