The only combination dewormers approved for pregnant & lactating mares, breeding stallions, and foals (4 weeks an older). Apple Flavored. Anthelmintic and boticide. Contains Boticide (ivermectin 1.87%) and Anthelmintic (Praziquantel 14.03%) Equimax is the FDA approved all-in one (including tapeworm) dewormer that combines invermectin and praziqualntel to saftey and effectively rid horses of all major internal parasites, including tapeworms, in a single dose. Broad spectrum parasite control including tapeworms in a single dose. Pfizer Animal Health.