Amide local anesthetics are the most commonly used class of drugs in surgery, acting on nerve endings or nerve trunks, blocking the conduction of nerve impulses, so that the patient’s local sensory and nociceptive response disappears, and reducing the pain of surgical patients during the process. Local anesthetics can be generally divided into arylate, amide, amino ether, amino ketone and so on, and amide local anesthetics belong to one of them. The main effect is to make the nerve endings or nerve trunks, block the nerve impulse conduction, so that the patient’s local sensory and pain response disappears, reduce the pain of the process of surgery patients. Common amide local anesthetics include lidocaine, dicaine, ropivacaine, and brucaine. Amide local anesthetics are generally used for surface anesthesia or infiltration anesthesia, if you need to use the drug, you need to use under the guidance of the doctor.