Morphine is one of the opioids and is mainly used clinically as a strong analgesic drug, but also as an adjunct to anesthetics to keep patients quiet and in a drowsy state. However, morphine can be as euphoric as the drug, and long-term use of the drug can quickly lead to dependence. The withdrawal symptoms of morphine mainly include insomnia, anxiety, sweating, constipation, chest tightness, panic, rapid heartbeat, even tachycardia, unstable blood pressure, even hypotension, staggering walking, and even hallucinations and delusions in severe cases.