Medrol by Pfizer Canada contains methylprednisolone 4 mg per tablet, supplied as white tablets engraved “MEDROL 4.” This prescription oral corticosteroid is provided in a bottle of 100 tablets with DIN 00030988. Classified as an analgesic, antirheumatic, and corticosteroid, Medrol is taken by mouth as directed by a licensed prescriber. Prescription required in Canada and Quebec.