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Tinidazole is used to treat bacterial and protozoal (parasitic), infections of the blood, lungs, chest, skin, womb lining, gums (gingivitis), genitals (trichomoniasis, vaginitis) or stomach (ulcers, amoebiasis or giardiasis).

How it works

Tinidazole belongs to a class of drugs called as nitroimidazole antibiotics that act against microbes like protozoa and anaerobic bacteria. It enters the cells of bacteria or protozoa, damages or interfere s in the production of their DNA; thereby killing them and reducing the infection.

Common side effects

Numbness, Abdominal pain, Acne-like rash, Facial swelling, Allergic reaction, Swelling of mouth, Lip swelling, Ankle swelling, Limb swelling, Constipation, Convulsion, Dizziness, Altered taste, Difficulty in swallowing, Shortness of breath, Fatigue, Headache, Hoarseness of voice, Loss of appetite, Stomach cramp, Stomach upset, Urticaria, Vomiting, Weakness


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Expert advice

  • Do not drive or operate heavy machinery if you feel dizzy or numb after taking tinidazole.
  • Do not drink alcohol while you are taking this medication and for 3 days afterwards. Alcohol may cause an upset stomach, vomiting, stomach cramps, headaches, sweating, and flushing (redness of the face).
Do not take the medicine:
  • If you are allergic to it or to any other content in the medicine.
  • If you have blood disorders at present or in the past.
  • If you have brain diseases such as epilepsy (fits).
  • If you are pregnant or planning to become pregnant or breast-feeding a baby.
Consult your doctor if you are taking any prescription drugs, especially drugs used for thinning of blood such as warfarin.

Frequently asked questions


Q. Is tinidazole or Fasigyn an antibiotic/sulfa drug?
Tinidazole is an antibiotic/anti-protozoal/anti-amoebic drug. It is not a sulfa drug.
Q. Is tinidazole available or sold over the counter?
No. Tinidazole is a prescription drug. It is not available or sold over the counter.
Q. Is tinidazole the same as metronidazole/Flagyl?
Tinidazole is different from metronidazole (also called as Flagyl). However, both of them belong to the same class of drugs.
Q. Is tinidazole/Fasigyn safe?
Yes. Tinidazole is relatively safe if used as recommended. In case of any side-effects, consult your doctor.
Q. What are Tiniba and Fasigyn used for?
Tiniba and Fasigyn are brand names of tinidazole available in the market. They are used for the same indications as tinidazole.
Q. Can I take tinidazole with fluconazole/Tylenol/ibuprofen?
Tinidazole can be taken with fluconazole/Tylenol (paracetamol)/ibuprofen only if prescribed by your doctor.
Q. Does tinidazole cure bacterial vaginosis and UTI?
Tinidazole is effective in the treatment of bacterial vaginosis. But it is not used for treatment of UTI.
Q. Does tinidazole cause yeast infections/diarrhea/cancer?
Prolonged use of tinidazole may cause candida or yeast infections. There is no evidence of tinidazole causing cancer. If you experience any such symptoms, please consult your doctor.
Q. Does tinidazole treat Chlamydial or urinary tract infections?
Yes. Tinidazole is used to treat Chlamydial infections, but is not effective for treating a urinary tract infection.
Q. Does tinidazole affect birth control?
There is no evidence of tinidazole affecting birth control. Please consult your doctor to confirm whether you require a secondary birth control measure while taking tinidazole.

Content on this page was last updated on 30 September, 2016, by Dr. Varun Gupta (MD Pharmacology)