Dacronin is a local anesthetic, this product can block the conduction of various nerve impulses or stimuli, inhibit the sense of touch and pain, pain, itching and antiseptic effect on the skin, especially for premature ejaculation has a very good therapeutic effect, the indications for the scald, abrasion, insect bites, ulcers, decubital ulcers, itchy skin diseases, such as pain, itching. Clinically oral tablets are used for temporary relief of minor sore throat, inflammation of the mouth and gums, and can also be used as an adjunct to bronchoscopy, laryngoscopy, esophagoscopy, and endotracheal intubation before surgery. A fixed combination of Dacronin and menthol relieves temporary irritation and pain in the mouth and throat. Dacronin is a local anesthetic, used to delay the main application of local anesthetic effect, through the anesthesia to reduce the sensitivity of the glans, thereby delaying ejaculation, during sexual life, usually half an hour before intercourse can be applied to the glans and coronal inguinal area.