Which medication is used for treating trichomonas vaginitis?

Metronidazole is the recommended treatment for trichomonas vaginitis, a common sexually transmitted infection caused by the parasite Trichomonas vaginalis. This medication works by disrupting the DNA of the parasite, effectively eliminating the infection.

In adult patients, a single dose of 2 grams of metronidazole is highly effective and is often used as the first-line therapy. It is important for patients to complete the treatment course as prescribed and for sexual partners to also receive treatment to prevent reinfection.

Other options listed, such as amoxicillin, ciprofloxacin, and azithromycin, are not effective against Trichomonas vaginalis. Amoxicillin is primarily used for bacterial infections, ciprofloxacin is a fluoroquinolone antibiotic used for a broader range of bacterial infections, and azithromycin is commonly used for certain bacterial STIs, such as chlamydia, but not for trichomonas. Therefore, metronidazole stands out as the appropriate choice for managing trichomonas vaginitis effectively.