Medications and Food Interfering with the Bioavailability of Levothyroxine: A Systematic Review

Medications and Food Interfering with the Bioavailability of Levothyroxine: A Systematic Review Proton-pump inhibitors, such as omeprazole17 and lansoprazole,18 have also been shown to influence the absorption of levothyroxine, as assessed by TSH levels in patients, since normal gastric acid secretion plays a major role in the absorption of thyroxine. Of the participating volunteers who…