Liothyronine Sodium + Oral Contraceptives Interaction
Moderateinteraction on record
Description
Estrogen-containing oral contraceptives increase thyroxine-binding globulin, potentially decreasing free levothyroxine. Patients without functioning thyroid gland may need increased thyroid dose.
Mechanism
Increased serum thyroxine-binding globulin reduces free levothyroxine
Source: NLP:liothyronine sodium