Cialis® is in a class of drugs called Phosphodiesterase Enzyme Inhibitors. It is used to treat erection problems in men. Cialis® is manufactured by Eli Lilly.
Generic Flagyl is an antibiotic. It is used to treat bacterial infections of the vagina, skin, bone and joint, respiratory tract and gastrointestinal infections. METRONIDAZOLE (an active ingredient) is an antiinfective. But it will not work for colds, flu, or other viral infections, also this medication will not treat a vaginal yeast infection.