To help keep birds clear of intestinal parasites. This is a natural herbal combination with no nasty pharmaceutical chemicals. Due to the natural nature of this product, withdrawal of eggs is not required. Safe for eating birds, no lay off required. 5-7 drops per bird per day average dose. 20 drops into 100ml of water will serve up to four birds. If the chickens are free ranging and can find water elsewhere, the drops can be sprinkled over food, added to water for mash or dropped onto pieces of bread. If Worms are present or suspected give three consecutive days per week up to four weeks. 100% natural. DUE TO THE NATURAL NATURE OF THIS PRODUCT WITHDRAWAL OF EGGS IS NOT REQUIRED.