Tinidazole is an antibiotic that is used to treat certain types of vaginal infections (bacterial vaginosis, trichomoniasis). It is also used to treat certain types of parasite infections (giardiasis, amebiasis). It works by stopping the growth of certain bacteria and parasites.
Tinidazole is used in cases of metronidazole contraception. In the United States, it is used as the first line of amoebic therapy.