Dac Metronidazole 20% - Global by Dac 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity (100g) Excellent for the treatment and cure of Canker in pigeons. We recommend that this poduct is mixed with feed as it is not very water soluble. Dosage: 2 Teaspoons to 2 lbs. of feed for 5 days.