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 taking them, which is medically called drug dependence. Drug dependence can be divided into two types: 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, methamphetamine, etc. Sedative-hypnotic class includes: phenobarbital, amytal, Ambien, chloral hydrate, Valium, etc. Chinese herbal medicines such as poppy husk and poppy flower can also become addictive when taken for a long time because they contain opioids. 2.Treatment For drug addiction, we must take comprehensive measures such as psychotherapy, somatic treatment and prevention of withdrawal symptoms. Patients with drug addiction must be hospitalized, the main methods of withdrawal are: slow withdrawal method; it drug substitution method; the use of chlorpromazine or Telden treatment when there is severe irritability; the use of amitriptyline, doxepin, etc. to uplift the patient’s spirit and improve mood; the use of insulin to reduce somatic discomfort-based anxiety; the application of Chinese herbal medicine and acupuncture treatment.