Drug interactions
Amoxicillin + Aztreonam
Severity: Minor
Amoxicillin and Aztreonam: 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
Amoxicillin and aztreonam can provide complementary coverage, with aztreonam targeting aerobic gram-negative bacilli. This is a beneficial spectrum effect and no safety concern is expected.
What this interaction means in plain words
Amoxicillin and Aztreonam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Amoxicillin belongs to Anti Bacterial; Aztreonam belongs to Anti Bacterial.
Why it happens
Complementary or additive beta-lactam activity on different penicillin-binding proteins.
What to do
No action is needed beyond dosing for infection site and renal function.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Amoxicillin and Aztreonam, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Amoxicillin
- Amoxicillin + Methotrexate Major
- Amoxicillin + Bcg vaccine live Moderate
- Amoxicillin + Cholera vaccine Moderate
- Amoxicillin + Eravacycline Moderate
- Amoxicillin + Microbiota Moderate
- Amoxicillin + Mycophenolate Moderate
Other interactions of Aztreonam
- Aztreonam + Cefoxitin Moderate
- Aztreonam + Cholera vaccine Moderate
- Aztreonam + Microbiota Moderate
- Aztreonam + Sodium picosulfate / magnesium oxide / anhydrous citric acid Moderate
- Aztreonam + Typhoid vaccine live Moderate
- Amikacin + Aztreonam Minor
Frequently asked questions
Can I take Amoxicillin with Aztreonam?
MediHelp rates the interaction as minor. Amoxicillin and Aztreonam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Amoxicillin and aztreonam can provide complementary coverage, with aztreonam targeting aerobic gram-negative bacilli. This is a beneficial spectrum effect and no safety concern is expected.
How serious is the interaction between Amoxicillin and Aztreonam?
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 action is needed beyond dosing for infection site and renal function.
What other medicines interact with Amoxicillin?
MediHelp also lists interactions of Amoxicillin with, for example, Methotrexate, Bcg vaccine live, Cholera vaccine. The full list is on the Amoxicillin page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
