1 Employed mainly as contraceptives, antiseptics in feminine hygiene, and as specific agents to combat an invading pathogen. 2 Most commonly, the drug used for contraception, trichomonacides to combat vaginitis caused by Trichomonas vaginalis, antifungals to treat Candida (Monilia) albicans, and anti-infectives/antibiotics directed at other microorganisms. 3 Urethral suppositories may be __ preparative for a urethral examination.