Background:

6α-Methyl-11β-hydroxyprogesterone is a synthetic glucocorticoid which has been used in the treatment of inflammatory eye diseases. 6α-Methyl-11β-hydroxyprogesterone is a corticosteroid with anti-inflammatory properties which has been discontinued in the United States. The structure of 6α-Methyl-11β-hydroxyprogesterone is very similar to progesterone. Neither progestogenic nor androgenic activity has been demonstrated for or attributed to medrysone [1, 2].

参考文献:
[1] The dictionary of drugs: chemical data: chemical data, structures and bibliographies[M].  Springer, 2014.
[2] SPAETH G L.  Hydroxymethylprogesterone: An anti-inflammatory steroid without apparent effect on intraocular pressure[J]. Archives of Ophthalmology, 1966, 75(6): 783-787.