Side effects of Pentazocine include loss of appetite, fatigue, dry mouth, increase in blood pressure, laryngeal edema, etc. If the symptoms are mild, you need to observe yourself first, and if the symptoms are severe, you can stop the medication to deal with it according to the doctor’s advice. Pentazocine is commonly used in the treatment of chronic severe pain, including traumatic pain, post-surgical pain, etc. It can also be used for pre-operative or pre-anesthetic administration and as an adjunct to surgical anesthesia. It should be noted that it is contraindicated in people with acute respiratory depression and hypoventilation. Some people may experience side effects after using the drug. If only symptoms such as loss of appetite, fatigue, dry mouth, etc. occur, the side effects are relatively mild and generally do not require special treatment, you can first observe your own situation. If the symptoms are severe, it is recommended to consult a doctor before stopping the medication and taking related treatment. If there is a rise in blood pressure, you can take oral nifedipine, torasemide and other drugs to reduce blood pressure; if the laryngeal edema is triggered, it is recommended to take antihistamines such as ibastine, loratadine, etc. to fight allergies and reduce swelling. If side effects occur after the use of Pentazocine, it is recommended to go to a regular hospital, with the doctor for standardized treatment. All drugs should be used in accordance with medical advice.