Neuralgia drugs include calcium channel modulators (gabapentin, pregabalin), antidepressants (e.g., amitriptyline, venlafaxine), sodium channel blockers (e.g., carbamazepine, oxcarbazepine), and opioids (e.g., oxycodone, morphine). 1. Calcium channel modulators: such as gabapentin, pregabalin, adverse reactions for dizziness, drowsiness, ataxia, gastrointestinal reactions, etc., prohibited in the drug allergy, acute pancreatitis patients, renal insufficiency should be used in a reduced amount. 2. Antidepressants: such as amitriptyline (adverse effects of excessive sweating, dry mouth, blurred vision, dysuria, constipation, etc., prohibited in patients with severe heart disease, myocardial infarction, glaucoma) and venlafaxine (adverse effects of gastrointestinal reactions, tremor, fatigue, drowsiness, prohibited in the combination of monoamine oxidase inhibitors). 3. Sodium channel blockers: such as carbamazepine and oxcarbazepine, adverse effects include sedation, dizziness, gait abnormalities, increased liver enzymes, hyponatremia, bone marrow suppression, exfoliative dermatitis, etc., contraindicated in patients with abnormal hepatic function and allergy to the drug. 4. Opioid analgesics: including oxycodone, morphine, etc., adverse reactions include nausea, vomiting, excessive sedation, respiratory depression, etc., prohibited in patients with respiratory insufficiency, hepatic and renal insufficiency, acute abdomen. All of the above drugs should be applied under the guidance of a doctor in strict compliance with medical advice, and should not be used blindly on their own, so as to avoid adverse consequences.