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How is Trichomoniasis Treated?


Updated February 03, 2014

Question: How is Trichomoniasis Treated?

Trichomoniasis is treated with a specific group of drugs known as the nitroimidazoles.

When you are being treated for trichomoniasis it is important that your sexual partners are treated as well. If they are not, you could end up passing the infection back and forth between you. In order not to infect your sexual partners, you should also abstain from sex until treatment is finished and your symptoms clear up. If abstaining is not possible, make certain to use condoms for all sexual encounters.

The drug regimens below are taken from the the Centers for Disease Control 2006 STD treatment guidelines. Remember that only your doctor can say which treatment is right for you.

Recommended Regimens for Non-Pregnant Patients

Metronidazole> 2 g orally in a single dose
Tinidazole 2 g orally in a single dose

Alternative Regimen for Non-Pregnant Patients

Metronidazole 500 mg orally twice a day for 7 days

Because both recommended drugs interact badly with alcohol, and may become less effective, you should not drink any alcohol during treatment. You should also avoid drinking alcohol for 24 hours after treatment with metronidazole, and for 72 hours after treatment with tinidazole

Trichomoniasis can negatively affect the outcome of a pregnancy. However, opinions are mixed about the benefits of treatment during pregnancy. If you are diagnosed with trichomoniasis during pregnancy, you should discuss with your physician the potential risks and benefits of having, or avoiding, treatment. If treatment is chosen, it is normally done with a single oral dose of 2g of metronidazole. No adverse outcomes of using metronidazole during pregnancy have been reported, but it has not been well studied in humans.

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