Patent ID: 11951213
Assignee: LABORATORIOS LEON FARMA SA
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 1:
2. The method of claim 1, wherein the pharmaceutical composition comprises the 6β,7β:15β,16β-Dimethylene-3-oxo-17α-pregn-4-ene-21,17-carbolactone in a form such that the pharmaceutical composition has a solubility profile, wherein:
(i) no more than 50% of the 6β,7β:15β,16β-Dimethylene-3-oxo-17α-pregn-4-ene-21,17-carbolactone initially present in the pharmaceutical composition is dissolved within 30 minutes; and
(ii) at least 50% of the 6β,7β:15β,16β-Dimethylene-3-oxo-17α-pregn-4-ene-21,17-carbolactone initially present in the pharmaceutical composition is dissolved in a time range from three hours to four hours,, when the pharmaceutical composition is subjected to an in vitro dissolution test according to the USP XXIII Paddle Method.