The price of Dacronin Hydrochloride Gum Paste 20g is around $100, and side effects such as mild headache and anxiety may occur with long-term use. Dacronin Hydrochloride Gum Paste is a local anesthetic drug used for laryngeal anesthesia and lubrication during upper gastrointestinal endoscopy, as well as getting rid of the foam in the lumen to make the vision clear. The general sales price of 20g is around 100 yuan, and it can be purchased in pharmacies and regular hospitals. During the use of Dacronin Hydrochloride Collodion, due to differences in patient tolerance to this product, occasional mild headache, anxiety, hot and cold sensations, numbness and other adverse reactions. It is contraindicated for those who are allergic to Dacronine Hydrochloride. Dacronin hydrochloride ointment is not recommended for long-term use, if discomfort occurs during use, you should seek medical attention.