Each film-coated tablet contains 550 mg rifaximin.
REFERO contains rifaximin (4-desoxy-4'methyl pyrido (1',2'-1,2) imidazo (5,4-c) rifamycin SV), in the polymorphic form α.
Excipients/Inactive Ingredients: Tablet core: Sodium starch glycolate type A, Glycerol distearate, Colloidal anhydrous silica, Talc, Microcrystalline cellulose.
Film coat (opadry oy-s-34907): Hypromellose, Titanium dioxide (E171), Disodium edetate, Propylene glycol, Red iron oxide (E172).