'-methyl Prednisolone;1,4-pregnadien-6α-methyl-11β, 17, 21-triol-3, 20-dione; Medrate; Medrol; Medrone; Urbason|11β,17,21-Trihydroxy-6α-methylpregna-1,4-diene-3,20-dione;|6α-Methyl Prednisolone;11β,17α,21-Trihydroxy-6α-methylpregna-1,4-diene-3,20-dione; 6 α|Methylprednisolone Acetate EP Impurity B ; Methylprednisolone Hydrogen Succinate EP Impurity A ; 11?,17,21-Trihydroxy-6?-methylpregna-1,4-diene-3,20-dione ;|Methylprednisolone acetate EP impurity B;|methylprednisolone hydrogen succinate EP impurity A ;