Flugestone acetate (FGA), sold under the brand name Cronolone among others, is a progestin medication which is used in

veterinary medicine Veterinary medicine is the branch of medicine that deals with the prevention, management, diagnosis, and treatment of disease, disorder, and injury in animals. Along with this, it deals with animal rearing, husbandry, breeding, research on nutri ...

Uses

Veterinary

FGA is used as an intravaginal

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preparation to synchronize

estrus The estrous cycle (, originally ) is the set of recurring physiological changes that are induced by reproductive hormones in most mammalian therian females. Estrous cycles start after sexual maturity in females and are interrupted by anestrous ...

in ewes and

goat The goat or domestic goat (''Capra hircus'') is a domesticated species of goat-antelope typically kept as livestock. It was domesticated from the wild goat (''C. aegagrus'') of Southwest Asia and Eastern Europe. The goat is a member of the a ...

Chemistry

FGA, also known as 17α-acetoxy-9α-fluoro-11β-hydroxyprogesterone or as 17α-acetoxy-9α-fluoro-11β-hydroxypregn-4-ene-3,20-dione, is a synthetic

pregnane Pregnane, also known as 17β-ethylandrostane or as 10β,13β-dimethyl-17β-ethylgonane, is a C21 steroid and, indirectly, a parent of progesterone. It is a parent hydrocarbon for two series of steroids stemming from 5α-pregnane (originally allop ...

steroid and a

derivative In mathematics, the derivative of a function of a real variable measures the sensitivity to change of the function value (output value) with respect to a change in its argument (input value). Derivatives are a fundamental tool of calculus. ...

of progesterone and

17α-hydroxyprogesterone 17α-Hydroxyprogesterone (17α-OHP), also known as 17-OH progesterone (17-OHP), or hydroxyprogesterone (OHP), is an endogenous progestogen steroid hormone related to progesterone. It is also a chemical intermediate in the biosynthesis of many o ...

. It is the C17α acetate

ester In chemistry, an ester is a compound derived from an oxoacid (organic or inorganic) in which at least one hydroxyl group () is replaced by an alkoxy group (), as in the substitution reaction of a carboxylic acid and an alcohol. Glycerides a ...

flugestone Flugestone ( INN, BAN), also known as flurogestone, as well as 9α-fluoro-11β,17α-dihydroxyprogesterone, is a steroidal progestin of the 17α-hydroxyprogesterone group that was never marketed. An acetate ester, flurogestone acetate, is used in ...

History

FGA was developed and marketed by G.D. Searle & Company in the 1960s.

Society and culture

Generic names

''Flugestone acetate'' is the generic name of the drug and its and , while ''flurogestone acetate'' is its . ''Flugestone'' is the and of the unesterified free alcohol form. FGA is also known by its developmental code names ''NSC-65411'' and ''SC-9880''.

Brand names

FGA is or has been marketed under the brand names Chronogest, Chrono-Gest, Crono-Gest, Cronolone, Gyncro-Mate, Ova-Gest, Ovakron, Synchro-Mate, Syncro Part, and Syncropart.

Availability

FGA is marketed for veterinary use in Australia,

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan area ...

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...

, the

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...

, and the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...

References

{{Glucocorticoid receptor modulators Acetate esters Diketones Secondary alcohols Organofluorides Glucocorticoids Halohydrins Pregnanes Progestogen esters Progestogens Veterinary drugs