All of the following drugs are effective for cervical ripening during pregnancy except :
Prostaglandin E2
Oxytocin
Progesterone
Misoprostol
Ripening of cervix is changing the cervical matrix from sol to gel state by dissolving the collagen bundles making cervix soft. Drugs used for cervical ripening are: Prostaglandin - Dinoprostal gel and Misoprostal tablet Steroid receptor antagonist - Mifepristone, Onapristone Relaxin Glyceryl trinitrite, isosorbide mononitrate Oxytocin Ref: Williams Obs 24e pg 525,Datta Obs 9e pg 486.
General obstetrics