Practi-Methylprednisolone™ (for training)Practi Methylprednisolone, for clinical training, from Wallcur is a 2 mL vial that contains an unsterile white powder that will dissolve in water. Practi Methylprednisolone simulates 125 mg mL of methylprednisolone (Solu Medrol), a corticosteroid medication used to suppress the immune system and decrease inflammation. It can treat conditions such as arthritis, blood disorders, severe allergic reactions, certain cancers, and immune system disorders.