Estradiol enantate/algestone acetophenide

Estradiol enantate /
algestone acetophenide
	Estradiol enantate (top) and; algestone acetophenide (bottom)
Combination of
Estradiol enantate	Estrogen
Algestone acetophenide	Progestogen
Clinical data
Trade names	Perlutal, Topasel, Unalmes, Yectames, many others
Other names	Estradiol enantate/dihydroxyprogesterone acetophenide; E2-EN/DHPA
Routes of; administration	Intramuscular injection
Identifiers
CAS Number	4956-37-0 ; 24356-94-3 ;
PubChem CID	91824751;
UNII	PAP315WZIA; OL7KC2O3OT ;

Estradiol enantate/algestone acetophenide, also known as estradiol enantate/dihydroxyprogesterone acetophenide (E2-EN/DHPA) and sold under the brand names Perlutal and Topasel among others, is a form of combined injectable birth control which is used to prevent pregnancy. It contains estradiol enantate (E2-EN), an estrogen, and algestone acetophenide (dihydroxyprogesterone acetophenide; DHPA), a progestin. The medication is given once a month by injection into muscle.

E2-EN/DHPA is used widely throughout Latin America, is also marketed in Hong Kong, and was previously available in Portugal and Spain as well but was discontinued in these countries.

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