Buy Percocet 7.5-325 mg is the best medication for Pain Relief. Percocet 7.5-325 mg directly works in the brain to change how your body feels and responds to pain. It tends to work by attaching to the receptors that are usually in the spinal cord, brain, and GI tract. When an opioid medication attaches to the receptors, the patient will begin to feel less and less pain because it alters the transmission of the pain signals. With the Acetaminophen Percocet, many people also tend to use it to reduce fever as it is an effective fever reducer.