前投薬

thumb | right | alt=Two bottles of Midazolam, one being 1 mg/ml and one being 5 mg/ml | Midazolam is a premedication used for pre-surgical sedation Premedication is using medication before some other therapy (usually surgery or chemotherapy) to prepare for that forthcoming therapy. Typical examples include premedicating with a sedative or analgesic before surgery; using prophylactic (preventive) antibiotics before surgery; and using antiemetics or antihistamines before chemotherapy.