1.87% w/w/ Ivermectrin. Parasite control for horses, ponies, mares, and foals. A paste for the treatment and control of adult and immature roundworms, lung worms and bots of horses and donkeys PANOMEC Paste is a modern wormer designed to be easy to use, highly effective against the widest range of parasitic roundworms and all the common bot species that can affect your horse and safe to use in all types of horses and young foals. Each syringe delivers 120 mg of iermectin. Oral use only. Use one 6.42g syringe per 600 kg of body weight. Tube.