<15 lbs: ⅛ tsp twice a day (16.5mg of Silymarin per day)
15-30 lbs: ¼ tsp twice a day (33mg of Silymarin per day)
31-80 lbs: ½ tsp twice a day (66mg of Silymarin per day)
81-120 lbs: ¾ tsp twice a day (100mg of Silymarin per day)
>120 lbs: 1 tsp twice a day (132mg of Silymarin per day)