Tinidazole

Tinidazole
4.56 ratingsReviews
Generic:
Tinidazole
Indications:
infection of the intestines or vagina sexually transmitted infections
Analogs:
Fasigyn Tindamax Metronidazole Secnidazole Ornidazole Nitazoxanide Clindamycin Paromomycin Flagyl
In stock: 18 packs
AdultsPregnancyAllergiesDiabetesBreastfeedingChildrenDriving

Dosages

Tinidazole 500 mg

Quantity Price per tablet You save Total price
60 A$2.69 - A$161.12
90 A$2.53 A$13.68 A$228.00
120 A$2.46 A$27.36 A$294.88
180 A$2.41 A$50.16 A$433.20
270 A$2.35 A$89.68 A$635.36
360 A$2.33 A$126.16 A$840.56

Manufacturers

Mission Pharmacal CompanyPfizerPfizer Limited

Payment & Delivery

Package Example

Your order is carefully packed and ships within 24 hours. Here is what a typical package looks like.

Sized like a regular personal letter (approximately 24x11x0.7 cm), with no indication of what is inside.

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Delivery Times
Delivery MethodEstimated delivery
Express Free for orders over A$456.00Estimated delivery to Australia: 4-7 days
Standard Free for orders over A$304.00Estimated delivery to Australia: 14-21 days
EMSAustralia Post
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Discount Coupons

  • Australia Day - 26 January 2026 10% AUSDAY10
  • Labour Day - 2 March 2026 6% LABOUR6
  • ANZAC Day - 25 April 2026 8% ANZAC8
  • King's Birthday - 8 June 2026 7% KING7
  • Boxing Day - 26 December 2026 12% BOXING12

FAQ

Tinidazole tablets are Schedule 4 Prescription Only Medicines in Australia, so a prescription is required when buying from a local pharmacy. Our store policy allows you to order tinidazole online without a prescription and have it sent by mail.

Do not increase the dose or extend the treatment yourself. Ongoing or worsening symptoms may mean the infection needs reassessment, testing or a different treatment, so arrange medical review.

Follow the prescribed regimen exactly. Some tinidazole treatments are a single dose, while others last several days; for a multi-day regimen, do not stop early just because symptoms improve unless the prescriber tells you to.

Not necessarily. Tablet colour, shape, size, coating, imprint and packaging can vary between manufacturers, and the exact product appearance is not guaranteed. The important identifiers are tinidazole as the active ingredient, the 500 mg strength and the oral tablet dosage form.

Check the package label for "tinidazole", "500 mg" and "tablet for oral use". Also compare the manufacturer name, lot number, expiry date and any tablet imprint with the package information. Do not take the tablets until any discrepancy in ingredient, strength or dosage form has been resolved.

This product is available as 500 mg oral tablets. No other strength is listed for this product.

Tinidazole is a nitroimidazole antibiotic and antiprotozoal medicine used for susceptible infections, including trichomoniasis, giardiasis and amoebiasis. It may also be used for certain anaerobic bacterial infections, including some vaginal and intestinal infections. The appropriate use depends on the organism and site of infection.

Tinidazole is contraindicated during the first trimester of pregnancy. Later in pregnancy, it should only be considered when treatment is essential and the expected benefit outweighs potential fetal risk. Tinidazole passes into breast milk, so breastfeeding should be interrupted during treatment and for 72 hours after the last dose.

Tinidazole 500 mg tablets are taken by mouth with water, following the prescribed dose and schedule for the infection being treated. They can be taken with food if stomach upset occurs. Avoid alcohol during treatment and for 72 hours after the final dose.

Common effects include nausea, stomach discomfort, diarrhoea, reduced appetite, a metallic or bitter taste, headache and dizziness. Seek urgent medical help for swelling, breathing difficulty, a severe rash or blistering. Stop using the medicine and obtain medical advice promptly if numbness, tingling, severe unsteadiness, confusion or seizures occur.

Description

Note: Images in the description are provided for informational purposes and may differ from the actual appearance of the product. Please refer to the product name, strength, active ingredients, and dosage form.

Fasigyn (tinidazole) is a nitroimidazole antimicrobial used to treat certain protozoal infections and bacterial vaginosis. In Australia, tinidazole is used in clinical practice for conditions such as trichomoniasis, giardiasis, amoebiasis and bacterial vaginosis, in line with local prescribing guidance and the treating clinician's assessment.

What is Fasigyn used for?

Tinidazole should only be used for infections that are proven, or strongly suspected, to be caused by susceptible organisms. It does not work against viruses such as colds or flu, so do not use it for viral infections.

Fasigyn

If you're unsure why these tablets have been prescribed, ask your doctor or pharmacist. Also keep in mind that in Australia, this medicine is only available with a doctor's prescription.

Trichomoniasis (sexually transmitted infection)

Tinidazole is used to treat trichomoniasis caused by Trichomonas vaginalis. Because trichomoniasis is a sexually transmitted infection, sexual partners should be treated with the same dose at the same time to help prevent reinfection.

Bacterial vaginosis (BV)

Tinidazole is used to treat bacterial vaginosis in non-pregnant adult women.

Infections caused by organisms called protozoa

Tinidazole is used for giardiasis caused by Giardia duodenalis, and for intestinal amoebiasis and amoebic liver abscess caused by Entamoeba histolytica (in adults and in children aged 3 years and older).

Infection associated with stomach ulcers in combination with other drugs

Tinidazole may be used off-label as part of some Helicobacter pylori eradication regimens in combination with other medicines. Only use it for this purpose if it has been prescribed by a clinician.

In all of these uses, the active ingredient is tinidazole, so you may see this name often when looking for information about Fasigyn tablets.

How to take Fasigyn tablets

Take tinidazole with food to help reduce stomach upset. Swallow the tablets with water (about 100 mL / about 3.4 fl oz). If you have trouble swallowing, ask your pharmacist or doctor for advice (the tablets may be crushed and mixed with syrup only if directed by a healthcare professional).

Here are some dos and don'ts for taking Fasigyn.

Dos:

  • If you become pregnant during the course, tell your doctor as soon as possible;
  • If you get white spots in your mouth or on your tongue while taking it, or soon after finishing the course, contact your doctor or pharmacist;
  • If you get itching or burning around your genitals and/or white discharge while taking it, or soon after finishing the tablets, tell your doctor. Tinidazole may contribute to yeast overgrowth;
  • If you're about to start taking other medicines during the course, check with your doctor first;
  • Tell any Australian doctors or other health professionals treating you that you are taking tinidazole.

Don'ts

  • Do not give your tablets to anyone else, even if they have similar symptoms or the same condition;
  • In Australia, do not try to get prescription medicines without a prescription to treat any condition.

If you miss a dose:

  • Take it as soon as you remember, unless it is nearly time for your next dose;
  • Do not take more than prescribed to make up for a missed dose.

If you overdose:

  • For emergencies, call 000, or contact your doctor and/or the Poisons Information Centre (13 11 26).

Side effects of Fasigyn

If you feel unwell while taking this medicine, even if the symptoms are not listed here, check with your Australian doctor. Some reactions can vary from person to person.

The most common side effects reported with a single 2 g dose include a metallic or bitter taste, nausea, weakness, tiredness or feeling generally unwell, stomach upset (dyspepsia, cramps or epigastric discomfort), vomiting, loss of appetite, headache, dizziness and constipation.

Skin rash or itching

If you develop a severe rash, swelling, trouble breathing, or other signs of a serious allergic reaction, stop taking the medicine and seek medical help straight away.

Fasigyn dose

Follow your doctor's instructions exactly. The dose depends on the condition being treated.

Australian doctors recommend taking tinidazole exactly as directed.
  • Trichomoniasis (adults): 2 g by mouth as a single dose with food. Treat sexual partners with the same dose at the same time.
  • Giardiasis: Adults: 2 g by mouth as a single dose with food. Children (aged 3 years and older): 50 mg/kg as a single dose (max 2 g) with food.
  • Amoebiasis (intestinal): Adults: 2 g per day for 3 days with food. Children (aged 3 years and older): 50 mg/kg/day (max 2 g/day) for 3 days with food.
  • Amoebic liver abscess: Adults: 2 g per day for 3-5 days with food. Children (aged 3 years and older): 50 mg/kg/day (max 2 g/day) for 3-5 days with food.
  • Bacterial vaginosis (non-pregnant adult women): 2 g once daily for 2 days with food, or 1 g once daily for 5 days with food.

Contraindications and precautions

Do not take tinidazole if you have had a hypersensitivity or allergic reaction to tinidazole or other nitroimidazole derivatives.

  • Pregnancy: Do not use tinidazole during the first trimester of pregnancy. If you are pregnant (especially in the 2nd/3rd trimester) or planning pregnancy, discuss the risks and benefits with your doctor.
  • Breastfeeding: Breastfeeding should be interrupted during tinidazole treatment and for 3 days after the last dose.

Stop taking tinidazole and contact a clinician promptly if abnormal neurological symptoms develop (for example, numbness, tingling or seizures).

Interactions with other medicines

Tell your doctor about all medicines and supplements you take.

Alcohol

Avoid alcoholic drinks and products containing ethanol or propylene glycol during tinidazole treatment and for 3 days after the last dose, because a disulfiram-like reaction (flushing, abdominal cramps, nausea, vomiting, headache) may occur. Do not take tinidazole if you have taken disulfiram within the last 2 weeks.

Additional information
You can find more information about Tinidazole (tinidazole) here:

Do not use alcohol-containing medicines either (such as some cough syrups).

Anticoagulants

Tinidazole may increase the effect of warfarin and other coumarin anticoagulants, which can prolong prothrombin time/INR. The anticoagulant dose may need to be adjusted during treatment with tinidazole and for up to 8 days after stopping it.

Effects on ability to drive and use machines

Tinidazole may cause dizziness or other neurological side effects in some people. If you feel dizzy or unwell, avoid driving or operating machinery.

How to store Fasigyn tablets

  • Store at controlled room temperature 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F).
  • Protect from light and keep in the original packaging.
  • Keep out of reach of children and pets.

Do not dispose of the medicine by flushing it down the toilet. Ask a pharmacist about proper disposal.

Medically reviewed by
Brian Holtry
MD, infectious diseases specialist and medical writer
Updated 11 August 2026

Customer questions

Asked by Sarah H, Hobart, Australia

I'm in Hobart and my tinidazole parcel was left outside during a very hot afternoon. What should I check before taking the tablets?

Answered by Support team

Check that the pack is intact, the tablets are dry and undamaged, and the label, lot number and expiry date are readable. Tinidazole should be stored at 25°C, with permitted excursions from 15°C to 30°C, protected from light and kept tightly closed.

Asked by Oliver K, Adelaide, Australia

I'm reordering from Adelaide because the last tablets suited me well. Will I receive the same manufacturer again?

Answered by Support team

We cannot guarantee that a repeat order will come from the same manufacturer. When your order arrives, verify the active ingredient, 500 mg strength, tablet dosage form, manufacturer, expiry date and lot details on the package before starting treatment.

Asked by Matthew F, Broome, Australia

I live in Broome and want to order tinidazole. How can I check whether delivery is available to my postcode before I pay?

Answered by Support team

Enter your Broome postcode at checkout and review the delivery options shown before completing payment. Delivery availability can vary by destination, so it cannot be confirmed here in advance.

Asked by Aisha, Newcastle, Australia

My clinician has diagnosed me with trichomoniasis and prescribed tinidazole. Does my partner need treatment as well if they do not have symptoms?

Answered by Support team
Medical reviewed by Donna Brettler

Yes, sexual partners should be assessed and treated at the same time because trichomoniasis is often symptom-free and can be passed back and forth. Avoid sex until both partners have completed treatment and any symptoms have settled; the prescriber should confirm the appropriate regimen for each person.

Product specifications

Active ingredientTinidazole
Drug classNitroimidazole antibiotic and antiprotozoal
Dosage formTablet
Available strengths500 mg
RouteOral
StorageStore at 25°C; excursions permitted to 15°C to 30°C. Protect from light and keep in a tightly closed container.
ATC codeP01AB02

Regulatory information

Australian registrationTinidazole is approved for human medicinal use in Australia.
Prescription requirementsTinidazole tablets are classified as a prescription-only medicine (Schedule 4) and require a valid prescription from a registered Australian healthcare practitioner.

More information