Methylprednisolone acetate

Methylprednisolone acetate, sold under the brand names Depo-Medrol among others, is a synthetic glucocorticoid corticosteroid and a corticosteroid ester—specifically the C21 acetate ester of methylprednisolone—which is used in clinical and veterinary medicine.^{[1][2][3][4][5][6][7]} It has been formulated as an aqueous suspension for intramuscular, intra-articular, soft tissue, and intralesional injection alone and in combination with lidocaine, a local anesthetic.^[1][4][5] Methylprednisolone acetate was previously suspended with polyethylene glycol but is no longer formulated with this excipient due to concerns about possible toxicity.^[6][8] Depo methylprednisolone acetate is a depot injection and is absorbed slowly with a duration of weeks to months with a single intramuscular injection.^[5]

Methylprednisolone acetate

Clinical data
Trade names	Depo-Medrol, Depo-Medrate, Depo-Medrone, others
Other names	Depot methylprednisolone acetate; Methylprednisolone 21-acetate; 6α-Methylprednisolone 21-acetate; NSC-48985
Routes of administration	Intramuscular injection
Drug class	Corticosteroid; Glucocorticoid
Legal status
Legal status	CA: ℞-only / OTC
Identifiers
IUPAC name [2-[(6S,10R,11S,13S,17R)-11,17-Dihydroxy-6,10,13-trimethyl-3-oxo-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-yl]-2-oxoethyl] acetate
CAS Number	53-36-1
PubChem CID	45357932
DrugBank	DBSALT001157
ChemSpider	5666
UNII	43502P7F0P
KEGG	D00979
ChEBI	CHEBI:6889
ChEMBL	ChEMBL1364144
CompTox Dashboard (EPA)	DTXSID7023302
ECHA InfoCard	100.000.157
Chemical and physical data
Formula	C24H32O6
Molar mass	416.514 g·mol−1
3D model (JSmol)	Interactive image
SMILES C[C@H]1CC2C3CC[C@@]([C@]3(C[C@@H](C2[C@@]4(C1=CC(=O)C=C4)C)O)C)(C(=O)COC(=O)C)O
InChI InChI=1S/C24H32O6/c1-13-9-16-17-6-8-24(29,20(28)12-30-14(2)25)23(17,4)11-19(27)21(16)22(3)7-5-15(26)10-18(13)22/h5,7,10,13,16-17,19,21,27,29H,6,8-9,11-12H2,1-4H3/t13-,16?,17?,19-,21?,22-,23-,24-/m0/s1 Key:PLBHSZGDDKCEHR-UFBGDBPHSA-N

See also

• List of corticosteroid esters § Methylprednisolone esters