Dosage Cartrophen Vet has an optimal clinical efficacy in dogs at 3mg/kg of pentosan polysulfate sodium (PPS) administered sub-cutaneously on four occasions at intervals of 5-7 days. In the horse the recommended dosage is slightly lower at 2-2.5mg/kg of PPS administered by way of intramuscular injection on four occasions at intervals of 5-7 days. The … Continue reading Dosage and Usage