(1) Drug type: prescription drugs. (2) Dosage form: water injection. (3) Adapted to the disease: It is used to prevent and treat bleeding before and after various operations, and can also be used for bleeding caused by poor platelet function and vascular fragility. (4) Usage and dosage: ① Intravenous infusion: 0.25-0.75g once, 2-3 times a day, and instill after dilution. ② Prevention of bleeding after surgery: 0.25-0.5g intravenously or intramuscularly 15-30 minutes before surgery, and 0.25g after 2 hours if necessary, or as directed by your doctor. (5) Adverse reactions: low toxicity, may be nausea, headache, rash, temporary hypotension, etc. Occasionally, allergic shock has been reported after intravenous injection. (6) Note: It can be mixed with vitamin K injection, but not with amino acid injection. Occasionally anaphylactic shock occurs after intravenous injection. Do not use with sodium bicarbonate injection, it is best to inject it separately. (7) Taboo: ① Those who are allergic to any ingredient in this product are prohibited. ②Disabled in patients with acute porphyria. (8) Medication analysis: Phenylsulfonamide alias: hemostasis. Mainly used to prevent and treat various kinds of bleeding before, during and after surgery. It is a drug that promotes the activity of blood coagulation factors. It can increase capillary resistance, reduce capillary permeability, increase platelet aggregation and adhesion, and promote blood. Coagulation, release of active substances, vasoconstriction, bleeding and clotting time, hemostatic effect.