Butalbital, aspirin, caffeine, and codeine and Enalaprilat interaction

Butalbital, aspirin, caffeine, and codeine and Enalaprilat: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.

What the FDA labels say

From the Enalaprilat label · effective 2024-01-04

Moderate

Non-steroidal anti-inflammatory agents In some patients with compromised renal function who are being treated with non-steroidal anti-inflammatory drugs, the co-administration of enalapril may result in a further deterioration of renal function.

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Moderate

This interaction should be given consideration in patients taking NSAIDs concomitantly with ACE inhibitors.

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Minor

However, reports suggest that NSAIDs may diminish the antihypertensive effect of ACE inhibitors.

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From the Butalbital, aspirin, caffeine, and codeine (BUTALBITAL, ASPIRIN, CAFFEINE and CODEINE PHOSPHATE) label · effective 2026-01-15

Minor

…renal function of patients Examples: Aminoglycosides, amphotericin B, systemic bacitracin, cisplatin, cyclosporine, foscarnet, or parenteral vancomycin Angiotensin Converting Enzyme (ACE) Inhibitors Clinical Impact: The hyponatremic and hypotensive effects of ACE inhibitors may be diminished by the concomitant administration of aspirin due to its indirect effect…

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Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.