9 10 pregna 4 6 diene 3 20 dione, 10alpha isopregnenone, 6 dehydro retro progesterone							
	
							
							
								
																	
																	
	
								
																	
							
							
																						
								 Used to treat irregular duration of cycles and irregular occurrence and duration of periods caused by progesterone deficiency. Also used to prevent natural abortion in patients who...