HomeMetronidazoleMetronidazole + Neostigmine Methylsulfate

Does Metronidazole Interact with Neostigmine Methylsulfate?

Metronidazole and Neostigmine Methylsulfate have a unknown drug interaction according to U.S. FDA drug labeling data. There was no effect on neostigmine action on rocuronium reversal by cefuroxime, metronidazole, cefuroxime or metronidazole. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Unknown
Metronidazole Class
Nitroimidazole Antimicrobial
Management
Consult your pharmacist
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Metronidazole and your doctor is considering prescribing Neostigmine Methylsulfate (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Never stop or change either medication without first consulting your healthcare provider
💊 Metronidazole+💊 Neostigmine Methylsulfate(Neostigmine Methylsulfate)

Severity & Interaction Details

ℹ️
unknown
Interaction documented — severity unclassified
The FDA label notes an interaction but the severity is not classified in our dataset.
Severity scale
MinorContra
On record
Yes
Drug A class
Nitroimidazole Antimicrobial
Drug B class
Source
FDA drug label - neostigmine methylsulfate

What this means in plain English

There was no effect on neostigmine action on rocuronium reversal by cefuroxime, metronidazole, cefuroxime or metronidazole.

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Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine. For informational purposes only. Always consult your pharmacist or physician.