FREPRIMECAL is a daily supplement to prevent Calcium and Phosphorus deficiency. It also helps to prevent Osteoporosis, Osteopenia, Rickets and Osteomalacia. Freprimecal can be given safely to growing dogs and cats and even old dogs and cats to provide them their daily dose of Calcium. Our products contain Microcrystalline Hydroxyapatite Complex (MCHC), which is a biologically dervied Calcium salt. MCHC is superior to other Calcium supplements in terms of BIOAVAILABILITY and ABSORPTION BY THE BODY. For correct absorption of Calcium, the body requires the right amount of Phosphorous and Glucoaminoglycons. Freprimecal contains both these compounds to aid the absorption of Calcium in the body. Most Calcium salts cause gut toxicity, constipation and loss of appetite but Freprimecal is safe and effective. It is the only Calcium Supplement without any side effects.