Drug interactions
Aspirin rectal + Penicillin g
Severity: Minor
Aspirin rectal and Penicillin g: minor 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 rectal aspirin can compete with penicillin G for renal tubular secretion, modestly prolonging penicillin exposure. Clinical consequences are usually small.
What this interaction means in plain words
Aspirin rectal and Penicillin g have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Competition for renal tubular organic anion secretion and protein binding.
What to do
No routine adjustment is needed; monitor for penicillin toxicity if high doses are given or renal function is reduced.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Penicillin g
- Amifampridine + Penicillin g Moderate
- Amiloride + Penicillin g Moderate
- Bcg vaccine live + Penicillin g Moderate
- Cholera vaccine + Penicillin g Moderate
- Colestipol + Penicillin g Moderate
- Deflazacort + Penicillin g Moderate
Frequently asked questions
Can I take Aspirin rectal with Penicillin g?
MediHelp rates the interaction as minor. Aspirin rectal and Penicillin g have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Salicylate absorbed from rectal aspirin can compete with penicillin G for renal tubular secretion, modestly prolonging penicillin exposure. Clinical consequences are usually small.
How serious is the interaction between Aspirin rectal and Penicillin g?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine adjustment is needed; monitor for penicillin toxicity if high doses are given or renal function is reduced.
What other medicines interact with Penicillin g?
MediHelp also lists interactions of Penicillin g with, for example, Amifampridine, Amiloride, Bcg vaccine live. The full list is on the Penicillin g page.
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