HomeBismuth Subcitrate Potassium Metronidazole And Tetracycline Bismuth Subcitrate Potassium Metronidazole And Tetracycline + Metronidazole

Does Bismuth Subcitrate Potassium Metronidazole And Tetracycline Interact with Metronidazole?

Bismuth Subcitrate Potassium Metronidazole And Tetracycline and Metronidazole have a moderate drug interaction according to U.S. FDA drug labeling data. ( 5.14 , 7.5 ) Antacids, Multivitamins or Dairy Products: Decreased absorption of Bismuth Subcitrate Potassium, Metronidazole and Tetracycline Hydrochloride Capsules; do not take concomitantly. ( 7.7 ) CYP inducers and CYP inhibitors: Prolonged or accelerated half-life of metronidazole or concomitant medications; use with caution. ( 7.8 , 7.9 ) 7.1 Disulfiram Psychotic reactions have been reported in alcoholic patients who are using metronidazole, a component of bismuth subcitrate potassium, metronidazole and tetracycline hydrochloride and disulfiram concurrently. 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
Moderate
Bismuth Subcitrate Potassium Metronidazole And Tetracycline Class
Nitroimidazole Antimicrobial
Metronidazole Class
Nitroimidazole Antimicrobial
Management
Monitor for effects
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Bismuth Subcitrate Potassium Metronidazole And Tetracycline and your doctor is considering prescribing Metronidazole (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
  • Ask whether any dosage adjustments are needed
  • Never stop or change either medication without first consulting your healthcare provider
💊 Bismuth Subcitrate Potassium Metronidazole And Tetracycline (Pylera)+💊 Metronidazole(Rosadan)

Severity & Interaction Details

🟡
moderate
Be aware — moderate interaction
Documented interaction with manageable risk. May require dose adjustment or monitoring.
Severity scale
MinorContra
On record
Yes
Drug A class
Nitroimidazole Antimicrobial
Drug B class
Nitroimidazole Antimicrobial
Source
FDA drug label - bismuth subcitrate potassium, metronidazole and tetracycline hydrochloride

What this means in plain English

( 5.14 , 7.5 ) Antacids, Multivitamins or Dairy Products: Decreased absorption of Bismuth Subcitrate Potassium, Metronidazole and Tetracycline Hydrochloride Capsules; do not take concomitantly. ( 7.7 ) CYP inducers and CYP inhibitors: Prolonged or accelerated half-life of metronidazole or concomitant medications; use with caution. ( 7.8 , 7.9 ) 7.1 Disulfiram Psychotic reactions have been reported in alcoholic patients who are using metronidazole, a component of bismuth subcitrate potassium, metronidazole and tetracycline hydrochloride and disulfiram concurrently.

About Bismuth Subcitrate Potassium Metronidazole And Tetracycline and Metronidazole

Bismuth Subcitrate Potassium Metronidazole And Tetracycline and Metronidazole both belong to the Nitroimidazole Antimicrobial class. You may recognize them by the brand names Pylera and Rosadan. Bismuth Subcitrate Potassium Metronidazole And Tetracycline is taken by mouth, whereas Metronidazole is applied to the skin. Both Bismuth Subcitrate Potassium Metronidazole And Tetracycline and Metronidazole carry an FDA boxed warning — the agency's most serious safety designation.

Recent research & FDA safety updates

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Data integrity: Every interaction shown is extracted directly from official U.S. FDA drug labeling via openFDA and the U.S. National Library of Medicine (NIH) — no interactions are invented, inferred, or manually edited. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.