Drug interactions
Benazepril + Bismuth subsalicylate
Severity: Moderate
Benazepril and Bismuth subsalicylate: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Salicylate absorbed from bismuth subsalicylate can blunt the blood pressure lowering effect of ACE inhibitors and may add to renal risk, especially in volume depletion, such as during diarrhea. Acute kidney injury is a concern in dehydrated or older patients.
What this interaction means in plain words
Benazepril and Bismuth subsalicylate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Benazepril belongs to Cardiovascular; Bismuth subsalicylate belongs to Gastrointestinal Tract.
Why it happens
Salicylate-mediated inhibition of renal prostaglandins reduces vasodilation and renal perfusion, antagonizing ACE inhibitor effects.
What to do
Avoid regular or prolonged use of bismuth subsalicylate. In dehydrated patients monitor renal function, potassium and blood pressure.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Bismuth subsalicylate
- Bismuth subsalicylate + Dichlorphenamide Major
- Bismuth subsalicylate + Warfarin Major
- Acetylsalicylic acid + Bismuth subsalicylate Moderate
- Amlodipine-benazepril + Bismuth subsalicylate Moderate
- Aspirin / citric acid / sodium bicarbonate + Bismuth subsalicylate Moderate
- Aspirin rectal + Bismuth subsalicylate Moderate
Other interactions of Benazepril
- Aliskiren + Benazepril Contraindicated
- Benazepril + Sacubitril / valsartan Contraindicated
- Benazepril + Sacubitril-valsartan Contraindicated
- Amifostine + Benazepril Major
- Amiloride + Benazepril Major
- Amlodipine-hydrochlorothiazide-valsartan + Benazepril Major
Frequently asked questions
Can I take Benazepril with Bismuth subsalicylate?
MediHelp rates the interaction as moderate. Benazepril and Bismuth subsalicylate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Salicylate absorbed from bismuth subsalicylate can blunt the blood pressure lowering effect of ACE inhibitors and may add to renal risk, especially in volume depletion, such as during diarrhea. Acute kidney injury is a concern in dehydrated or older patients.
How serious is the interaction between Benazepril and Bismuth subsalicylate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid regular or prolonged use of bismuth subsalicylate. In dehydrated patients monitor renal function, potassium and blood pressure.
What other medicines interact with Bismuth subsalicylate?
MediHelp also lists interactions of Bismuth subsalicylate with, for example, Dichlorphenamide, Warfarin, Acetylsalicylic acid. The full list is on the Bismuth subsalicylate page.
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