In order for a veterinarian to prescribe medication, what must be established first?

For a veterinarian to prescribe medication, it is essential to establish a recent medical history and conduct a physical exam. This process is vital because a thorough understanding of the patient's current health status and any previous medical conditions is necessary to make an accurate diagnosis. By obtaining this information, the veterinarian can ensure that the prescribed medication is appropriate, effective, and safe for the specific animal.

Establishing a medical history and performing a physical examination help to identify any potential contraindications or interactions with existing medications. This thorough approach upholds the standards of veterinary care and ensures the welfare of the animal being treated, as medication prescribed without appropriate diagnostics could lead to ineffective treatment or adverse effects.