What the FDA labels say about taking them together
Aliskiren and captopril
Captopril's FDA label of February 6, 2026 names aliskiren in its contraindications section; aliskiren's label does not name captopril itself but warns about its class (ACE inhibitors). The captopril label: “Do not co-administer aliskiren with captopril tablets in patients with diabetes.”
Check it at the source: the aliskiren FDA label on DailyMed (effective March 7, 2024, LXO US Inc.); the captopril FDA label on DailyMed (effective February 6, 2026, AiPing Pharmaceutical, Inc.).
What does the aliskiren label say about captopril?
Aliskiren's label does not name captopril itself; it warns about its class (ACE inhibitors):
Aliskiren label, warnings and precautionsIn general, avoid combined use of Tekturna with ACE inhibitors or ARBs, particularly in patients with creatinine clearance (CrCl) less than 60 mL/min [see Contraindications ( 4 ), Drug Interactions ( 7 ) and Clinical Studies ( 14.3 )].
Aliskiren label, drug interactionsIn general, avoid combined use of aliskiren with ACE inhibitors or ARBs, particularly in patients with CrCl less than 60 mL/min.
Source: FDA drug label (Tekturna), NDA021985 (Lxo Ireland), as published by LXO US Inc., effective March 7, 2024 (SPL set 3dd61fa5-1620-4ebf-bbdb-ede29b92fce2), via openFDA; the full label on DailyMed
What does the captopril label say about aliskiren?
Captopril label, contraindicationsDo not co-administer aliskiren with captopril tablets in patients with diabetes (see PRECAUTIONS, Drug Interactions ).
Captopril label, drug interactionsDrug Interactions Dual Blockade of the Renin-Angiotensin System (RAS) Dual blockade of the RAS with angiotensin receptor blockers, ACE inhibitors, or aliskiren is associated with increased risks of hypotension, hyperkalemia, and changes in renal function (including acute renal failure) compared to monotherapy.
Source: FDA drug label (Captopril), AiPing Pharmaceutical, Inc., effective February 6, 2026 (SPL set 3b789f16-b291-4012-be39-af3beec3ff9a), 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
| Aliskiren | Captopril | |
|---|---|---|
| Labeled for | High blood pressure | High blood pressure, Heart failure, Chronic kidney disease |
| Boxed warning | Yes | Yes |
| Pharmacy cost (NADAC) | $3.94 per tablet 150 mg tablet | $0.228 per tablet 12.5 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