Tramadol injection can be used intravenously, subcutaneously or intramuscularly, the recommended dosage is 50-100mg, the specific dosage should follow the doctor’s instructions. Tramadol injection is a non-opioid central analgesic, the instructions recommended dosage as above, intravenous injection can be slowly drip, can also be diluted in the infusion drip, the specific dosage should be determined by the degree of pain, the general daily dose of not more than 400mg, but used for severe postoperative pain and cancer pain, may be appropriate to exceed the amount of the specific dosage should be consulted with a medical professional. Tramadol Injection is mostly used to relieve various acute and chronic pains, such as cancer pain, bone fracture pain, postoperative pain, and so on. It should be noted that the use of Tramadol Injection is prohibited for those who are allergic to any component of the drug, those who have severe respiratory depression, those who have severe brain damage, those who have blurred consciousness, those who have taken monoamine oxidase inhibitors in the past 14 days, as well as those who have been acutely poisoned by alcohol, sleeping pills, and other medications that act on the central nervous system. Some patients may experience adverse reactions such as dizziness, headache, dysphoria, nausea, vomiting, constipation, dry mouth, sweating, etc., during the use of the drug, in which case they should inform the doctor promptly and be treated accordingly by the doctor. Tramadol injection is addictive, belongs to the national controlled drugs, should be used by professional doctors, patients should not use the drug by themselves to avoid adverse consequences.