Descrição

Ramipril, an ACE inhibitor, reduces lithium renal clearance through decreased glomerular filtration, leading to potentially toxic lithium accumulation.

Mecanismo

ACE inhibition reduces angiotensin II-driven efferent arteriolar tone, lowering GFR and reducing lithium clearance; proximal tubular lithium reabsorption increases compensatorily.

Significância Clínica

Lithium levels can increase by 30–75% after ACE inhibitor initiation; toxicity (neurotoxicity, cardiac arrhythmias) may occur rapidly.

Conduta

Check lithium levels within 1 week of ramipril initiation or dose change; preemptive lithium dose reduction is recommended.

Aviso Médico

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.