The commonest prostaglandin used for the termination of 2nd trimester pregnancy:
Methods of termination of pregnancy: 
Second Trimester (13-20 weeks):

Intrauterine instillation of hypertonic solutions
	
Intra amniotic à 20% saline, 40% urea mannitol
Extra amniotic à Ethacrydine lactate


Prostaglandins F2a and E2
Oxytocin infusion
Hysterotomy
PGE1
PGI2
PGA2
15 methyl PGF2