It’s tempting to skip an expensive visit to the vet’s office when you can just order the same drugs online. Sites offer the exact medications that the vet’s office sells–at much lower prices, without a prescription. It’s not such a good idea, though. Much like buying human drugs online from shady sources (no prescription needed) you may not get exactly what you ordered. The medications that show up on your doorstep could be ineffective, or may even harm your pet.