While in the step-up dosing phase, about 1-3 hours before your dose, you should receive the following pretreatment medications:
Corticosteroid (oral or intravenous dexamethasone 16 mg)
Histamine-1 (H1) receptor antagonist (oral or intravenous diphenhydramine 50 mg or equivalent)
Antipyretics (oral or intravenous acetaminophen 650 mg to 1000 mg or equivalent)
Tocilizumab (a multi-use drug commonly used to treat arthritis)
Patients who experienced CRS during their first dose of bispecific antibody or those who missed a dose in their regular schedule may need to take pretreatment medication before they receive their weekly doses. Additionally, patients who repeat doses within the step-up dosing schedule following a dose delay may also require pretreatment medication.