A vet prescription is required for the medicine you have chosen moxidectin is a second generation macrocyclic lactone of the milbemycin family praziquantel is a parasiticide widely used in many species for the specific control of tapeworm for the single dose treatment of mixed cestode and nematode or arthropod infections in horses and ponies caused by moxidectin and praziquantel sensitive strains of large redworm large strongyles small redworm small strongylescyathostomin adults and