Cosequin Optimized with MSM 1400GM, Newly formulated powder joint supplement offers higher optimized levels of active ingredients per scoop, plus MSM which aids in the production of collagen; especially beneficial for horses under higher stress from intense activity. Each 2 scoop serving contains 14,400 mg high purity glucosamine hydrochloride, 10,000 mg MSM, 2,400 mg low molecular weight sodium chondroitin sulfate, 420 mg ascorbic acid and 64 mg manganese. Initial dosage: Over 600 lbs body wt - 2 scoops daily for 2-4 wks, under 600 lbs - 1 scoop; Long-term administration: Over 600 lbs body wt - 1 scoop daily, under 600 lbs - 1/2 scoop. For all classes of horses. Do not feed to cattle or other ruminants. 2 scoops = 33 gms. 1,400 gms = 84 day supply at 1 scoop level.