Misoprostol is an analogue of: (A) PGE1, (B) PGE2, (C) PGF2alfa, (D) PGI2
Answer is A. Misoprostal: PGE-1 Given transvaginally and orally Dose of 25 micrograms every 4 hrs is found to be more effective than PGE -2 for cervical ripening and labor induction. Oral use of misoprostal is less effective than vaginal administration . Ref: Dutta Obs 9e pg 485.