MajorThiazide-like diuretics×Psycholeptics. Lithium
Updated · Methodology
Mechanism
Indapamide is a thiazide-like diuretic. The lithium-raising mechanism is the same as hydrochlorothiazide: enhanced lithium reabsorption in the proximal tubules via subclinical volume depletion. Serum lithium rises.
Symptoms
Tremor, muscle twitching, nausea, diarrhoea, confusion, ataxia. Severe cases include seizures, coma, and nephrogenic diabetes insipidus with dehydration. Symptoms emerge when serum lithium exceeds 1.2 mmol/L.
Management
Reduce lithium dose by 25–30% when starting indapamide; check serum lithium at 1 week, then monthly. Alternatives: amlodipine or a beta-blocker without lithium effects.
Check the full regimen, not just this pair
Opens the checker with these two drugs prefilled. Add the rest of the regimen and recompute additive risks.
Summary of a multi-drug list →
Medicine list: everything you take in one place →
Sources
- FDA: Lithium carbonate tablet (Glenmark Pharmaceuticals Inc., USA) – Prescribing Information (2005)– ; DailyMed setid 1b65d27e-5086-4a87-8387-c49f3d060978
- AEMPS: Ficha técnica Tertensif 2,5 mg comprimidos recubiertos con película (indapamida) (2022)– AEMPS, CIMA, nº registro 53338, revisión 06/2022, secciones 4.4 y 4.5