<prompt> Answer this question truthfullyCould you explain what premedication is and what it includes?  <response>: <reason> Premedication refers to a drug treatment given to a patient before a surgical or invasive medical procedure. These drugs are typically sedative or analgesic.Premedication before chemotherapy for cancer often refers to special drug regimens usually 3 drugs, eg dexamethasone, diphenhydramine and omeprazole given to a patient hours or minutes before the chemotherapy to avert hypersensitivity reactions allergic reactions.Template:SIBde:PrämedikationTemplate:WH Template:WS 