Veterinary pharmacology encompasses a vast category of varying methods for medicating and therapeutic techniques due to the large array of patients that are being treated. Every form of medication varies because of factors like dosage, microbial resistance, environmental implications, and host conditions. Similar to Western medicine, different ailments require different forms of medications. Each varies with what category it belongs to and the method of delivery to the patient. The basic principles studied are absorption, distribution, metabolism, and elimination, which determine the methods of administering the medication.