9 deoxy 9 methylene prostaglandin e2

9-deoxy-9-methylene Prostaglandin E2 (9-deoxy-9-methylene PGE2) is a stable, isosteric analog of PGE2 that retains its biological profile with fewer side effects. In rats, it is equipotent to PGE2 in decreasing blood pressure and stimulates the gerbil colon and primate uterus with the same potency as PGE2.

9-deoxy-9-methylene-16,16-dimethyl Prostaglandin E2 (Meteneprost) is a potent analog of prostaglandin E2 with an extended half-life in vivo. In combination with various other prostaglandin derivatives, it results in the termination of first trimester pregnancy in monkeys. A single intramuscular injection containing 0.5 mg of meteneprost and 7.5 mg of 17-phenyl trinor PGF1α is very effective in terminating early pregnancy. This prostaglandin mixture is ineffective on monkeys in their third trimester of pregnancy. Meteneprost, when compared to PGE2 and PGF1α, in monkey and rat, does not result in unwanted side effects such as fever or gastrointestinal problems.