คำอธิบาย
Sertraline can increase levothyroxine clearance, particularly in patients with pre-existing hypothyroidism, potentially necessitating levothyroxine dose increases.
กลไก
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.
ความสำคัญทางคลินิก
Case series and retrospective reports describe increased levothyroxine dose requirements after initiation of sertraline, with TSH rising despite stable prior replacement therapy.
การจัดการ
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.
ข้อจำกัดความรับผิดชอบทางการแพทย์
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.