Drug interactions
Aspirin rectal + Bismuth subsalicylate
Severity: Moderate
Aspirin rectal 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
Rectal aspirin is absorbed systemically and adds to the salicylate delivered by bismuth subsalicylate. This increases the risk of salicylate toxicity and bleeding.
What this interaction means in plain words
Aspirin rectal 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.
Why it happens
Additive systemic salicylate exposure and antiplatelet effects.
What to do
Avoid combined use where possible and use a non-salicylate alternative. Monitor for tinnitus, bleeding and GI symptoms.
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 + Bismuth subsalicylate Moderate
Frequently asked questions
Can I take Aspirin rectal with Bismuth subsalicylate?
MediHelp rates the interaction as moderate. Aspirin rectal 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. Rectal aspirin is absorbed systemically and adds to the salicylate delivered by bismuth subsalicylate. This increases the risk of salicylate toxicity and bleeding.
How serious is the interaction between Aspirin rectal 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 combined use where possible and use a non-salicylate alternative. Monitor for tinnitus, bleeding and GI symptoms.
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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