Liquid and softgel capsules of l-thyroxine results lower serum thyrotropin levels than tablet formulations in hypothyroid patients

ConclusionsL-T4 ingested as liquid solution or softgel capsule is more bioavailable compared to L-T4 ingested as tablet, and it is slightly superior to capsule L-T4 only in the absence of co-ingestion of interfering medications.
Source: Journal of Clinical and Translational Endocrinology - Category: Endocrinology Source Type: research