Amoxicillin has 39 known drug interactions based on U.S. FDA drug labeling data. Of these, 9 are contraindicated combinations that should be avoided entirely. 4 are classified as major interactions requiring close medical supervision. Notable interactions include combinations with Esomeprazole, Esomeprazole Magnesium, Esomeprazole Magnesium Delayed Release Capsules. Patients taking Amoxicillin should inform their healthcare provider of all current medications — including over-the-counter drugs and supplements — to avoid potentially harmful combinations. Data sourced from OpenFDA and the NIH National Library of Medicine.
- Total
- 39
- Contraindicated
- 9
- Major
- 4
- Moderate
- 4
- Minor
- 2
Contraindicated (9)
- Amoxicillin + Esomeprazole— Combination Therapy with Clarithromycin and Amoxicillin Clinical Impact: Concomitant administration of clarithromycin wi…
- Amoxicillin + Esomeprazole Magnesium— Combination Therapy with Clarithromycin and Amoxicillin Clinical Impact: Concomitant administration of clarithromycin wi…
- Amoxicillin + Esomeprazole Magnesium Delayed Release Capsules— Combination Therapy with Clarithromycin and Amoxicillin Clinical Impact: Concomitant administration of clarithromycin wi…
- Amoxicillin + Lansoprazole— Combination Therapy with Clarithromycin and Amoxicillin Clinical Impact: Concomitant administration of clarithromycin wi…
- Amoxicillin + Omeprazole— Combination Therapy with Clarithromycin and Amoxicillin Clinical Impact: Concomitant administration of clarithromycin wi…
- Amoxicillin + Omeprazole Magnesium— Combination Therapy with Clarithromycin and Amoxicillin Clinical Impact: Concomitant administration of clarithromycin wi…
- Amoxicillin + Rabeprazole— Combination Therapy with Clarithromycin and Amoxicillin Clinical Impact: Concomitant administration of clarithromycin wi…
- Amoxicillin + Rabeprazole Sodium— Combination Therapy with Clarithromycin and Amoxicillin Clinical Impact: Concomitant administration of clarithromycin wi…
- Amoxicillin + Vonoprazan Fumarate— Combination Therapy with Clarithromycin and/or Amoxicillin Clinical Effect Concomitant administration of clarithromycin …
Major (4)
- Amoxicillin + Allopurinol— 7 DRUG INTERACTIONS • The following drugs may increase the risk of serious skin reactions: bendamustine, thiazide diuret…
- Amoxicillin + Allopurinol Sodium— 7.1 Drugs Known to Affect the Occurrence of Skin Rash and Hypersensitivity Concomitant use of the following drugs may in…
- Amoxicillin + Oral Anticoagulants— Concomitant use may increase prolongation of prothrombin time and abnormal INR. Monitoring and dose adjustments may be n…
- Amoxicillin + Probenecid— Probenecid decreases renal tubular secretion of amoxicillin, resulting in increased and prolonged blood levels of amoxic…
Moderate (4)
- Amoxicillin + Acetazolamide— Sulfonamides may interfere with bactericidal effects of amoxicillin, though clinical significance is not well documented…
- Amoxicillin + Chloramphenicol— Chloramphenicol may interfere with bactericidal effects of amoxicillin, though clinical significance is not well documen…
- Amoxicillin + Oral Contraceptives— Amoxicillin may reduce efficacy of combined oral estrogen/progesterone contraceptives by affecting intestinal flora and …
- Amoxicillin + Tetracycline— Tetracyclines may interfere with bactericidal effects of amoxicillin, though clinical significance is not well documente…
Minor (2)
- Amoxicillin + Etonogestrel And Ethinyl Estradiol— Serum concentrations of etonogestrel and ethinyl estradiol were not affected by concomitant administration in standard d…
- Amoxicillin + Etonogestrel And Ethinyl Estradiol Vaginal Ring— Serum concentrations of etonogestrel and ethinyl estradiol were not affected by concomitant administration in standard d…