With repeated use of some medications, the body becomes dependent and mental or physical reactions occur once the medication is discontinued. For this reason, some patients apply these drugs continuously or periodically to avoid the discomfort when they stop, which is medically called drug dependence. Drug dependence can be divided into mental dependence and somatic dependence.1. Drugs that can become addictive morphine, sedative sleeping pills, cocaine, cannabis, central stimulants and hallucinogens, etc. Clinically common addictive drugs are mainly caused by morphine-type and sedative-hypnotic drugs. Morphine-type drugs include: morphine, heroin, opioids, tincture of opioids, codeine, compound camphor tincture and synthetic analgesic drugs. Such as dulcolax, propoxyphene, anisin, methadone, etc. The Chinese medicine poppy husk, poppy flower, etc. can also be addictive because of the opioid, long-term use of sedative-hypnotic class including: phenobarbital, amytal, Ambien, chloral hydrate, Valium, benzodiazepines, etc. 2, treatment of drug addiction must take a comprehensive measure of psychological treatment, somatic treatment and the prevention of withdrawal symptoms. Patients with drug addiction must be hospitalized, and the main methods of withdrawal are: slow withdrawal method; other drug substitution method; the use of psychotropic drugs for sedation and relaxation when severe irritability occurs.