EPY0001115
Drospirenone impurity E - 3-oxo-6alpha,7alpha,15alpha,16alpha-tetrahydro-3'H,3''H-dicyclopropa [6,7:15,16]pregn-4-ene-21,17-carbolactone (17-epidrospirenone)
Drospirenone impurity E - 3-oxo-6alpha,7alpha,15alpha,16alpha-tetrahydro-3'H,3''H-dicyclopropa [6,7:15,16]pregn-4-ene-21,17-carbolactone (17-epidrospirenone)
Medronic acid impurity B - Tetrakis(1-methylethyl)methhylenediphosphonate