What is Tinidazole: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 30, 2020

Tinidazole overview

BRAND NAMES:

  • Tinidazole, Tindamax

Generic Names:

  • Tinidazole

Uses:

  • Treats infections caused by protozoa (including trichomoniasis, giardiasis, and amebiasis). Also treats vaginal infections caused by bacteria.

Therapeutic Classes:

  • Amebicide, Extraintestinal, Amebicide, Intestinal, Antibiotic, Antiprotozoal

Forms:

  • Tablet, Liquid

How it’s taken:

  • By mouth

What is Tinidazole used for?

What form(s) does Tinidazole come in

  • Tablet

  • Liquid

What are common Tinidazole doses?

  • Tablet 250MG

  • Tablet 500MG

  • Jar 1GM of

  • Bottle 100GM of

Common Tinidazole prescriptions

  • Tinidazole
    250mg tablet

  • Tinidazole
    500mg tablet

How to take Tinidazole

  • Your doctor will tell you how much medicine to use. Do not use more than directed.

  • Oral routeIt is best to take this medicine with food or milk. Taking this medicine with food will help you avoid having stomach discomfort or upset.

  • Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses.

  • If you cannot swallow the tablet, it may be crushed in artificial cherry syrup. Shake this mixture well before drinking. Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. You may store the oral liquid (crushed tablets in artificial cherry syrup) at room temperature up to 7 days.

  • Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses.

  • Oral routeIt is best to take this medicine with food or milk. Taking this medicine with food will help you avoid having stomach discomfort or upset.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • If you cannot swallow the tablet, it may be crushed in artificial cherry syrup. Shake this mixture well before drinking. Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

  • Your doctor will tell you how much medicine to use. Do not use more than directed.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. You may store the oral liquid (crushed tablets in artificial cherry syrup) at room temperature up to 7 days.

What to do if you miss a dose of Tinidazole

  • Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • Oral routeAsk your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Tinidazole contraindications

  • This medicine is not right for everyone. Do not use if you had an allergic reaction to tinidazole or similar medicines.

Tinidazole warnings

  • It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant.

  • Tell your doctor if you have kidney disease, liver disease, or a history of blood disease.

  • Do not breastfeed while using this medicine. Wait at least 3 days after you stop taking this medicine before you breastfeed.

  • This medicine may cause the following problems:Possible risk for cancer (with long-term use)Peripheral neuropathy (nerve problem) and seizuresIncreased risk for vaginal yeast infection

  • Trichomoniasis treatment: Your doctor may want to also treat your sexual partner, even if he or she has no symptoms. Also, you may want to use a condom during sexual intercourse. These measures will help keep you from getting the infection back again from your partner. If you have any questions, ask your doctor.

  • Talk with your doctor before using this medicine if you plan to have children. Some men who use this medicine have become infertile (unable to have children).

  • Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.

  • Call your doctor if your symptoms do not improve or if they get worse.

  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Tinidazole interactions

  • Do not use this medicine if you have taken disulfiram within the last 2 weeks. Do not drink alcohol or use medicine that contains alcohol or propylene glycol while using this medicine and for at least 3 days after treatment.

  • Some foods and medicines can affect how tinidazole works. Tell your doctor if you are using cholestyramine, cimetidine, cyclosporine, fluorouracil, fosphenytoin, ketoconazole, lithium, oxytetracycline, phenobarbital, phenytoin, rifampin, tacrolimus, or a blood thinner (including warfarin).

  • You should not use this medicine if you are using disulfiram (Antabuse®), or if you have used it within the past 2 weeks.

  • Tinidazole may cause vaginal yeast infection. If this happens, you will need another type of medicine to treat the infection. Ask your doctor about this if you have any concerns.

  • Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.

  • Call your doctor if your symptoms do not improve or if they get worse.

  • This medicine may make you dizzy or drowsy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.

Tinidazole side effects

Serious Side Effects

  • Yellowing of your skin or the whites of your eyes.

  • Vaginal swelling, itching, or discharge.

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Fever, chills, cough, sore throat, body aches

  • Numbness, tingling, or burning pain in your hands, arms, legs, or feet

  • Seizures

  • Vaginal swelling, itching, or discharge

  • Unexplained sore throat or fever.

Less Serious Side Effects

  • Constipation, nausea, vomiting, stomach pain

  • Metallic or bitter taste

  • Loss of appetite

  • Tiredness or weakness.

  • Tiredness or weakness

  • Dizziness, headache

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