This document summarizes common health issues for different dog breeds. It discusses the domestication of dogs and cats from wild animals thousands of years ago. It provides guidelines for proper medication administration in dogs and cats based on factors like age, gender, existing diseases, and genetics. Common issues seen in specific breeds like Beagles include epilepsy, back disease, eye cataracts and glaucoma, and deafness. German Shepherds are prone to hip dysplasia, gastric torsion, bone inflammation, and skin infections. Golden Retrievers may experience hip dysplasia, gastric torsion, skin hot spots, eye disease, and blood cancer. The document also warns about allergic reactions to certain drugs in cats and how they