all other prostanoids ( except ici81008 and pgd2 which had no effect ) contracted the tissue , the rank order of contractile potency being 16,16-dimethyl pge2 greater than pge2 greater than pgf2 alpha = pge1 greater than u46619 much greater than ici81008 and pgd2 .
C0033554
prostanoids
C0002335
pge1