Answer
Losartan with lithium may cause reversible increases in serum lithium concentrations and toxicity, reported very rarely with angiotensin II receptor antagonists; use requires caution and, if the combination is essential, serum lithium monitoring.
Sources for this answer
- COZAAR 12.5 mg, 50 mg and 100 mg Film-Coated TabletsOrganon Pharma (UK) Limited · emc · SmPC §4.5 Interaction with other medicinal products · Version 28Document updated
Sources checked