The use of medicated foods is the only way to effectively treat internal disease. And under certain conditions using a single drug does not have the desired effect. Our Anti-Parasite Duo Flake combines metronidazole with praziquantel. This drug combination has shown to be more effective than using each drug on its own. Metronidazole is an anti-protozoan medication and praziquantel is a broad spectrum deworming medication. This combination will treat a variety of parasites in the gut. Shown to treat hexamita, Malawi bloat, body slime, chilodonella, freshwater ich, epistylis, schistosoma, liver flukes, gill flukes, flat worms, tape worms and turbellarians. Treatment: Begin treatment with a water change of 25% or greater. Then feed 1-2 times a day for 7-10 days. May be repeated if necessary. Can also use concurrently with Epsom Salt and elevated heat (86F/30C or higher) to clear out the gut more efficiently. Medicated flakes are made to order to ensure medication does not age sitting on our shelves and lose potency.