Abstract: 2a,2b-Dihomo-15-methyl and 15-ethyl PGF- and PGE-type compounds are disclosed with processes for making them. These compounds are useful for a variety of pharmacological purposes, including anti-ulcer, inhibition of platelet aggregation, increase of nasal patency, labor inducement at term, and wound healing.

Abstract: Pharmaceutical preparations in dosage forms and animal feeds (baits) consisting essentially of compatible, pharmaceutically acceptable carriers, oral and injectable, compounded with a sub-lethal, yet effective, amount of epichlorohydrin for inducing sterility in male mammals. Methods for preventing impregnation of females by male mammals which comprises administering systemically to male mammals a sterilizing amount of epichlorohydrin, also identified as .gamma.-epichlorohydrin.

Abstract: Pharmaceutical preparations in dosage forms and animal feeds (baits) consisting essentially of pharmaceutically acceptable carriers, oral and injectable, compounded with a sublethal, yet effective, amount of a compound having the formula: ##STR1## and R.sub.1 and R.sub.2 are the same or different and are hydrogen, alkyl of from 1 to 17 carbon atoms, alkenyl of from 2 to 17 carbon atoms, phenyl, a heterocyclic ring such as furyl, pyrrolyl, thienyl, indolyl or pyridyl, and R.sub.1 and R.sub.2, taken together, can be a carbocyclic ring of up to 8 carbon atoms, for inducing sterility in male mammals. Methods for preventing impregnation of females by male mammals which comprises administering systemically to male mammals a sterilizing amount of a compound of the Formula l.

Abstract: Intermediates useful for preparing prostaglandin-type compounds with an alkoxy group replacing the hydroxyl at the C-15 position are disclosed. These products are useful for the same pharmacological properties as the unsubstituted prostaglandins.

Abstract: 2a,2b-Dihomo-15-methyl and 15-ethyl PGF- and PGE-type compounds are disclosed with processes for making them. These compounds are useful for a variety of pharmacological purposes, including anti-ulcer, inhibition of platelet aggregation, increase of nasal patency, labor inducement at term, and wound healing.

Abstract: Pharmaceutical preparations in dosage forms and animal feeds (baits) consisting essentially of pharmaceutically acceptable carriers, oral and injectable, compounded with a sublethal, yet effective, amount of a compound having the formula: ##EQU1## wherein R' is a member selected from the group consisting of hydrogen and alkyl of from one to eight carbon atoms, inclusive and R is a member selected from the group consisting of hydrogen and an acyl radical of a hydrocarbon carboxylic acid of one to 18 carbon atoms, inclusive, for inducing sterility in male mammals. Methods for preventing impregnation of females by male mammals which comprises administering systemically to male mammals a sterilizing amount of a compound of the Formula I.