(Pfizer) Equimax Paste contains 1.87% Ivermectin and 14.03% praziquantel for the treatment and control of tapeworms, large strongyles, small blood worms, ascarids, threadworms, pinworms, hairworms, large mouth stomach worms, lungworms and bots in horses. Safe for all horses 4 weeks and older. Each tube treats up to 1320 lbs of body weight.