The dose is 30 mg IV. Premedication is given using antihistamine (diphenhydramine 50 mg by mouth), antipyretics (acetaminophen 650 mg by mouth), and corticosteroid (hydrocortisone 200 mg IV) 1 hour before alemtuzumab infusion. Side Effects Cytopenia Alemtuzumab can cause neutropenia and thrombocytope...