Premedication Instructions for Patients with Contrast Allergies

Prednisone 50mg po at 13 hours, 7 hours and 1 hour prior to planned administration of intravenous contrast plus diphenhydramine 50mg po, iv or im at 1 hour prior to planned administration of intravenous contrast

Or

• Methylprednisolone 32mg po at 12 hours and 2 hours prior to planned administration of contrast plus diphenhydramine 50 mg po, iv or im at 1 hour prior to the planned administration of contrast

Or

• Hydrocortisone 200mg iv at 13 hours, 7 hours and 1 hour prior to planned administration of intravenous contrast if patient is unable to take po medications