Ivermectin may be effective on worms that infest mammals, but is worthless as an avian wormer. Valbazen suspension in the 500 ml bottle is Albendazole. It gets all worms and is safe to use. 1/2 cc oral dosage for standards and 1/4 cc for bantams. Trifen Avicola tabs are Albendazole also. Worminator is pyrantel, and is another good one from Hake's Twin City Poultry Supply.