What the FDA labels say about taking them together
Lithium and torsemide
Torsemide's FDA label of May 8, 2024 names lithium in its drug interactions section; the lithium labels PlainMeds reads (4) do not name torsemide. The torsemide label: “Risk of lithium toxicity Renin-angiotensin inhibitors: Increased risk of hypotension and renal impairment. Radiocontrast agents:”
Check it at the source: the lithium FDA label on DailyMed (effective December 23, 2025, Glenmark Pharmaceuticals Inc., USA); the torsemide FDA label on DailyMed (effective May 8, 2024, Aurobindo Pharma Limited).
What does the lithium label say about torsemide?
Lithium's label (effective December 23, 2025) and its 3 other brand-application labels do not name torsemide in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Lithium Carbonate), Glenmark Pharmaceuticals Inc., USA, effective December 23, 2025 (SPL set 63b3790f-a9b5-47f4-bae1-ddf8b43c13c1), via openFDA; the full label on DailyMed
What does the torsemide label say about lithium?
Torsemide label, drug interactionsRisk of lithium toxicity ( 7.5 ) Renin-angiotensin inhibitors: Increased risk of hypotension and renal impairment. ( 7.7 ) Radiocontrast agents:
Source: FDA drug label (Torsemide), Aurobindo Pharma Limited, effective May 8, 2024 (SPL set 55e88727-864e-4313-860c-31a6ca45168f), via openFDA; the full label on DailyMed
These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.
Both medicines on the record
| Lithium | Torsemide | |
|---|---|---|
| Labeled for | Bipolar disorder | High blood pressure, Heart failure |
| Boxed warning | Yes | No |
| Pharmacy cost (NADAC) | $0.104 per capsule 300 mg capsule | $0.0636 per tablet 20 mg tablet |
| Shortage now | No current entry | No current entry |
Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)
What next?
- Check more medicines together
- up to five at once