Misoprostol oral tablets contain either 100 mcg or 200 mcg of misoprostol, a synthetic prostaglandin E1 analog.
Misoprostol contains approximately equal amounts of the two diastereomers presented below with their enantiomers indicated by (±):
|C22H38O5 M.W. = 382.5|
|(±) methyl 11α, 16-dihydroxy-16-methyl-9-oxoprost-13E-en-1-oate|
Misoprostol is a water-soluble, viscous liquid.
Inactive ingredients of tablets are hydrogenated castor oil, hypromellose, microcrystalline cellulose, and sodium starch glycolate.