Major Probable

Mô tả

Spironolactone increases renal lithium reabsorption by promoting distal tubular sodium retention, leading to lithium toxicity.

Cơ chế

Spironolactone antagonizes aldosterone-mediated distal tubular sodium excretion; the resulting sodium retention reduces compensatory proximal tubular sodium (and lithium) reabsorption variably, but overall lithium levels tend to rise.

Ý nghĩa lâm sàng

Lithium toxicity has been documented with spironolactone co-administration; the direction and magnitude of interaction is variable.

Xử trí

Monitor lithium levels within 1 week of spironolactone initiation or dose change; adjust lithium dose based on levels.

Tuyên bố miễn trách y tế

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.

Data sources: ChEMBL, PubChem, DailyMed.