Metronidazole and Tinidazole

ByBrian J. Werth, PharmD, University of Washington School of Pharmacy
Reviewed/Revised May 2024
VIEW PROFESSIONAL VERSION

amebiasis, the intestinal infection giardiasis, the vaginal infection Trichomonas vaginitis, and the bacterial infection bacterial vaginosis.

Metronidazole works by disrupting the production of genetic material by bacteria. As a result, the bacteria die. Tinidazole works in a similar way.

Metronidazole and tinidazole can interfere with alcohol metabolism and can cause unpleasant side effects similar to those of a hangover including nausea, vomiting, flushing, and headache. Alcohol should be avoided while taking metronidazole or tinidazole and for 3 days after the last dose.

Table

(See also Overview of Antibiotics.)

Use of Metronidazole or Tinidazole During Pregnancy and Breastfeeding

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