Ronidazole 10% (100 grams) Pigeon Supplies Plus
The product of choice in Europe for the treatment of Canker, and is regarded by most veterinarians as the No. 1 medication for canker in pigeons. It is not harmful to young birds, and safe to use during breeding season.
Dosage Treatment: 1 teaspoon per gallon of water for 5 days.
Prevention : 1 teaspoon per gallon of water for for 2 days.