Metrozole 500 mg tablet. An antiprotozoal and antibacterial agent with selective activity against anaerobic bacteria and protozoa, used for bacterial vaginosis, amoebiasis, and giardiasis. Covered under the PhilHealth GAMOT Anti-infectious benefit and dispensed free of charge to active PhilHealth members by TrueMed, an accredited PhilHealth GAMOT Facility. Brand: Metrozole.