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What the FDA labels say about taking them together

Aliskiren and azilsartan

Azilsartan's FDA label of January 23, 2024 names aliskiren in its drug interactions section; aliskiren's label does not name azilsartan itself but warns about its class (ARBs (angiotensin II receptor blockers)). The azilsartan label: “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 …”

Check it at the source: the aliskiren FDA label on DailyMed (effective March 7, 2024, LXO US Inc.); the azilsartan FDA label on DailyMed (effective January 23, 2024, Azurity Pharmaceuticals, Inc.).

What does the aliskiren label say about azilsartan?

Aliskiren's label does not name azilsartan itself; it warns about its class (ARBs (angiotensin II receptor blockers)):

Aliskiren label, warnings and precautions

Renal Impairment/Hyperkalemia/Hypotension when Tekturna is Given in Combination with ARBs or ACEIs Tekturna is contraindicated in patients with diabetes who are receiving ARBs or ACEIs because of the increased risk of renal impairment, hyperkalemia, and hypotension.

Aliskiren label, contraindications

CONTRAINDICATIONS Do not use Tekturna with ARBs or ACEIs in patients with diabetes [see Warnings and Precautions ( 5.2 ) and Clinical Studies ( 14.3 )].

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 azilsartan label say about aliskiren?

Azilsartan label, drug interactions

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 (Edarbi), Azurity Pharmaceuticals, Inc., effective January 23, 2024 (SPL set 52b27c75-9f5a-4816-bafd-dace9d7d2063), 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

1Aliskiren generic labelers
1Azilsartan generic labelers
AliskirenAzilsartan
Labeled forHigh blood pressureHigh blood pressure
Boxed warningYesYes
Pharmacy cost (NADAC)$3.94 per tablet 150 mg tablet$5.47 per tablet 40 mg tablet
Shortage nowNo current entryNo 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?