Cobalequin is an easy to administer form of cobalamin supplementation. Cobalequin is orally administered which may eliminate the need for cobalamin injections. Oral cobalamin is bioavailable and has been shown in studies to increase serum cobalamin levels in dogs and cats. Cobalequin B12 Supplement is brought to you by Nutramax Laboratories Veterinary Sciences, the #1 veterinarian recommended supplement company. *Source: Survey conducted among small animal veterinarians who recommended animal supplements.