Yellow Percocet 10mg contains a combination of the opioid oxycodone with the analgesic acetaminophen (also known by its brand name, Tylenol). The drug’s manufacturer, Endo International, currently produces Percocet pills in four different strengths, each with a distinctive color. The amount of oxycodone hydrochloride found in Percocet tablets varies from 2.5 to 10 milligrams. All strengths contain 325 milligrams of acetaminophen. Percocet is an opioid which means it is derived from the same source as heroin, opium, and morphine. The actual molecular structure of paracetamol is nearly identical to heroin. This is why it acts very similar to other opioids and opiates. Users can expect to feel drowsy, a sense of euphoria, and constipation, in addition to pain relief. Other side effects of use include nausea, a faster or slower heart rate, dry mouth, pinpoint pupils, low blood pressure, shallow breathing, loss of appetite, dizziness, and mood changes such as depression.