Valbazen Oral Dewormer for Chickens – 15ml Bottle. Valbazen Oral Dewormer for Chickens – 15ml Bottle. Expiration on main bottle is 09/2024. Dosing instructions: Bantams: .25cc Large Fowl: .5cc Repeat in 10 days Helpful tip is to disperse the dewormer from a provided syringe onto bread and give each bird their little piece of bread. Further information can be found on the manufacturer website. Zoetis/Valbazen Valbazen Oral Dewormer for Chickens – 15ml Bottle. Expiration on main bottle is 09/2024. Dosing instructions: Bantams: .25cc Large Fowl: .5cc Repeat in 10 days Helpful tip is to disperse the dewormer from a provided syringe onto bread and give each bird their little piece of bread. Further information can be found on the manufacturer website. Zoetis/Valbazen