Описание
Sertraline can increase levothyroxine clearance, particularly in patients with pre-existing hypothyroidism, potentially necessitating levothyroxine dose increases.
Механизм
Sertraline may induce hepatic CYP enzymes involved in levothyroxine metabolism and increase biliary excretion of thyroid hormone; it may also alter transport proteins that regulate T4 bioavailability.
Клиническое значение
Case series and retrospective reports describe increased levothyroxine dose requirements after initiation of sertraline, with TSH rising despite stable prior replacement therapy.
Тактика ведения
Recheck TSH 6–8 weeks after starting sertraline in levothyroxine-treated patients; adjust levothyroxine dose as needed; conversely, monitor for signs of hyperthyroidism if sertraline is discontinued.
Медицинский отказ от ответственности
This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making medication decisions.