ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.
Overview
It's similar to metronidazole.
What it's used for
- Trichomoniasis
- Bacterial vaginosis
- Giardia
- Amebiasis
How to take it
- Take it with food.
- Partners need treatment for trichomoniasis.
Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.
Side effects
Common side effects
- Metallic taste
- Nausea
- Tiredness
Call 911Seizure
Call your provider todayNumbness or tingling in hands or feet
Warnings
- Avoid alcohol during treatment and for 3 days after.
Other medicines, foods, and alcohol
- It raises warfarin's effect.
- It can raise lithium levels.
Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.
Pregnancy and breastfeeding
Avoid in the first trimester.
Missed doses, overdose, and storage
If you miss a dose
Take it as soon as you remember. If it's almost time for the next dose, skip the missed one. Don't double up, and still finish the full course.
If someone takes too much
Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.
Storing it
Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.
Conditions it's used for
Sources
- DailyMed: FDA drug label for Tinidazole (U.S. National Library of Medicine)
- MedlinePlus: Drugs, herbs, and supplements
- FDA: Drugs@FDA
Last updated 2026-11-13.