0 – 3.75lbs: 1/16 tsp twice a day 4 – 7.5lbs: 1/8 tsp twice a day 8 – 14lbs: 1/4 tsp twice a day 15 – 20 lbs: 1/2 tsp twice a day 21 – 40 lbs: 1 tsp twice a day 41 – 80 lbs: 2 tsp twice a day 81 – 120 lbs: 2 ½ tsp twice a day > 120 lbs: 3 tsp twice a day