Medically reviewed by Jessica Swirble, PharmD
Last updated on March 27, 2025
Drug Information | Side Effects | Use & Dosage | Request an Online Prescription
Tinidazole is an antibiotic medication used to treat certain bacterial and parasitic infections caused by protozoa (tiny single-celled organisms).
Tinidazole is prescribed to treat various infections caused by bacteria or parasites. This includes:
Tinidazole belongs to a class of medications known as nitroimidazole antibiotics. It works by interfering with the DNA synthesis of bacteria and parasites, ultimately killing them and resolving the infection.
Tinidazole is available as an oral tablet. It should be taken with food to reduce stomach upset.
The time it takes to notice the effects of tinidazole will vary depending on the type and severity of the infection being treated. Most patients start feeling better within a few days after starting treatment.
If you have been taking tinidazole for several days and aren't feeling better, talk to your healthcare provider. Do not increase your dosage. If you are feeling better, do not stop using tinidazole until your provider directs you to do so.
Take tinidazole for as long as your provider tells you to.
Tinidazole may also be prescribed off-label for certain conditions or infections (like urethritis). Discuss any alternative uses with your healthcare provider.
Tinidazole is available as an oral tablet or suspension.
It is available under its generic name, tinidazole.
Tinidazole is only available via prescription. You must have a written prescription from a licensed healthcare provider to obtain this medication.
The use of tinidazole has been shown to cause side effects in some patients.
Common mild side effects of tinidazole use include:
More severe side effects include:
Seek medical attention immediately if you experience any severe symptoms while taking tinidazole. If you experience mild side effects that become severe or do not go away after a few days, speak to a healthcare provider right away.
Tell your healthcare provider about any existing medical conditions, allergies, or other medications you are taking before starting treatment with tinidazole. This includes prescription drugs, over-the-counter medications, and dietary supplements, as they may interact with this drug.
Tell your provider if you are taking these medications or supplements:
You should also mention medical conditions such as:
If you are pregnant, planning to become pregnant, or breastfeeding, consult your healthcare provider before using tinidazole to assess potential risks and benefits.
You can follow your regular diet while taking tinidazole. However, it's essential to avoid consuming alcohol during and for at least three days after completing tinidazole treatment, as it may cause severe reactions such as nausea, vomiting, flushing, and headache.
Talk to your provider about drinking grapefruit juice while taking tinidazole.
Your healthcare provider will provide specific instructions regarding the use of tinidazole with food, beverages, and other medications. It's essential to follow their guidance to ensure the effectiveness of the treatment and minimize the risk of side effects.
If you suspect an overdose of tinidazole or experience severe symptoms, seek immediate medical attention or contact the poison control helpline at 1-800-222-1222. Symptoms of an overdose may include nausea, vomiting, dizziness, and seizures.
If an individual has collapsed, is having seizures, or is unresponsive, call 9-1-1 immediately.
Tinidazole is available in oral tablet form (250 mg, 500 mg).
The typical starting dose of tinidazole varies depending on the type of infection being treated, the severity of the infection, and individual patient factors. It is crucial to follow your healthcare provider's instructions regarding dosage and administration.
For the treatment of bacterial infections, the typical starting doses may be:
For other infections or conditions, your healthcare provider will determine the most appropriate dose and duration of treatment based on your medical history, current medications, and response to the medication.
Tinidazole should be taken exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment without consulting your provider.
If you have any questions about your dosage, contact your healthcare provider. If you want to talk to a provider right away, book an online doctor appointment on Sesame to discuss your concerns.
If you miss a dose, take it as soon as you remember it. If it's almost time for another dose of tinidazole, skip the missed dose and take your next dose as scheduled. Do not take or apply a double dose of tinidazole.
Do not discontinue or alter your tinidazole dosage without consulting with your healthcare provider. Follow your healthcare provider's instructions regarding dosing and other recommendations for taking tinidazole.
Store tinidazole as directed by your healthcare provider or pharmacist. Proper storage is essential to maintain the medication's effectiveness. Tinidazole should be stored at room temperature, away from excessive heat, light, and moisture.
Keep the medication out of the reach of children and ensure that the container is tightly closed.