The anesthesia time of Lidocaine hydrochloride gel paste is about 1~2 hours. Lidocaine hydrochloride colloid is one of the commonly used local anesthetics, mostly used in endoscopy, playing the role of surface anesthesia and lubrication, its main component is lidocaine, with fast onset of action, long-lasting effect, strong penetration and safety range angle, etc., widely used in clinical applications. Lidocaine hydrochloride gel paste is absorbed into the body is mainly metabolized by the liver, but the metabolism is slow, the anesthesia effect lasts about 1~2 hours. However, the specific anesthesia time is affected by the patient’s physical condition, the dosage situation there are differences, at the same time repeated use of previous patients can produce rapid tolerance, may affect its anesthesia effect and duration. If you need to use the drug, you should use the drug under the guidance of a specialist, and should not use it blindly on your own, so as not to cause adverse effects on the body.