Tinidazole — Drug Interactions, Alcohol & Pregnancy Guide
Last reviewed: · Source: US FDA drug label database · 247CanITakeWith Editorial Team
- Tinidazole is a Nitroimidazole antibiotic/antiprotozoal used for Bacterial vaginosis.
- Alcohol: Never drink alcohol with tinidazole — like metronidazole, it causes a severe disulfiram-like reaction with vomiting, flushing, and rapid heart rate.
About Tinidazole
Tinidazole is similar to metronidazole — do not drink alcohol during a course or for 72 hours after the last dose (even longer wash-out than metronidazole).
Also sold as: Fasigyn, Trimonase
Tinidazole at a glance
Tinidazole is classed as nitroimidazole antibiotic/antiprotozoal and is used for bacterial vaginosis, h. pylori eradication, protozoal infections (giardia, trichomoniasis), amoebiasis. It is a prescription medicine, so doses and combinations should always be agreed with your prescriber or pharmacist.
Typical adult dosing guidance: 500mg-2g depending on indication and regimen. Your own label or prescription always takes priority over general figures.
Interactions most often flagged
- Alcohol (72h after last dose)
- Warfarin
- Pregnancy (avoid first trimester)
Before you combine Tinidazole with anything new
- Read the patient information leaflet for both products.
- Keep one up-to-date list of every medicine and supplement you take.
- Ask a pharmacist — it is free and takes a couple of minutes.
- Seek urgent medical help if you feel seriously unwell after combining medicines.
Tinidazole and Alcohol
Never drink alcohol with tinidazole — like metronidazole, it causes a severe disulfiram-like reaction with vomiting, flushing, and rapid heart rate.
Full guide →More in this category: antibiotics
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Frequently Asked Questions
What is Tinidazole used for?
Tinidazole is a Nitroimidazole antibiotic/antiprotozoal used for Bacterial vaginosis, H. pylori eradication, Protozoal infections (giardia, trichomoniasis), Amoebiasis.
What is the maximum adult dose of Tinidazole?
The maximum adult dose is 500mg-2g depending on indication and regimen. This is general guidance — always follow the dose on your prescription or product label, and check with a pharmacist if you're unsure.
Can I drink alcohol with Tinidazole?
Never drink alcohol with tinidazole — like metronidazole, it causes a severe disulfiram-like reaction with vomiting, flushing, and rapid heart rate.
Is Tinidazole available over the counter in the UK?
Tinidazole is prescription-only in the UK.
What should I check before taking Tinidazole with other medicines?
The interactions most often flagged for Tinidazole are: alcohol (72h after last dose), warfarin, pregnancy (avoid first trimester). Tell your pharmacist or prescriber about everything you take, including over-the-counter products, supplements and herbal remedies, before combining it with anything new.
What are the brand names for Tinidazole?
Tinidazole is sold under brand names including Fasigyn, Trimonase. The active ingredient is the same, so check labels carefully to avoid doubling up on it.
Do I need a prescription for Tinidazole?
Tinidazole is a prescription medicine, so take it exactly as your prescriber directed and ask them before changing the dose.
Not sure if Tinidazole is safe with your other medications?
HealthLabs.com lets you check liver enzyme or kidney function levels before combining medications long-term — no GP referral needed.
Check your levels at HealthLabs →Always speak to your pharmacist or GP for personalised medical advice. Affiliate link — we may earn a commission.