คำอธิบาย
Topiramate can cause metabolic acidosis through carbonic anhydrase inhibition, which may increase the risk of lactic acidosis in patients on metformin.
กลไก
Topiramate inhibits carbonic anhydrase, causing bicarbonate wasting and metabolic acidosis; systemic acidosis impairs mitochondrial function and lactate clearance, potentially unmasking metformin-associated lactic acidosis.
ความสำคัญทางคลินิก
Case reports of lactic acidosis exist for this combination; the interaction is more relevant in patients with renal impairment, dehydration, or other metformin risk factors.
การจัดการ
Monitor serum bicarbonate and renal function; advise adequate hydration; consider withholding metformin if metabolic acidosis develops.
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.