Ethisterone - Revision history

Prab: CSV import

2025-03-23T10:55:22Z

CSV import

← Older revision		Revision as of 10:55, 23 March 2025
Line 1:		Line 1:
	'''Ethisterone''' is a synthetic [[steroid ~~hormone~~]] ~~belonging to the class of~~ [[~~progestogens~~]]. It ~~is an~~ orally active ~~progestogen which was previously~~ used in ~~the treatment of a variety of medical conditions but is now largely obsolete~~. Ethisterone is ~~considered to be the first orally active progestogen, marking~~ a ~~significant milestone in the development~~ of [[~~pharmacology~~]] and [[~~endocrinology~~]].		{{Short description\|A progestogen hormone}}

			[[File:Ethisterone.svg\|thumb\|right\|Chemical structure of Ethisterone]]

			'''Ethisterone''', also known as 17α-ethinyltestosterone, is a [[progestogen]] hormone and a synthetic [[steroid]] with [[progestogenic]] activity. It was one of the first orally active progestogens to be synthesized and used in medicine. Ethisterone is a derivative of [[testosterone]] and is closely related to other progestogens such as [[norethisterone]].

	==History==		==History==
	Ethisterone was synthesized in 1938~~, making it~~ one of the earliest ~~synthetic~~ progestogens~~. Its development was part of the broader effort~~ to ~~understand and synthesize hormones that could~~ be used ~~to regulate fertility~~ and ~~treat hormonal disorders~~. Ethisterone~~'s introduction was~~ a ~~pivotal moment in~~ the ~~history~~ of [[~~contraceptive~~]] ~~technology and hormonal therapy.~~		Ethisterone was first synthesized in 1938 by the German chemist [[Hans Herloff Inhoffen]] and his colleagues. It was introduced for medical use in the 1940s and was one of the earliest progestogens to be used in [[hormone replacement therapy]] and [[contraception]].

			==Chemical Structure==
			Ethisterone is a synthetic [[androgen]] and [[progestogen]] that is structurally related to testosterone. It is characterized by the presence of an ethinyl group at the C17α position of the steroid nucleus, which is responsible for its oral activity.

			[[File:Ethisterone_molecule_ball.png\|thumb\|left\|Ball-and-stick model of Ethisterone molecule]]

	==~~Chemical Structure and~~ Mechanism of Action==		==Mechanism of Action==
	~~The chemical structure of~~ Ethisterone ~~closely resembles that of~~ [[~~testosterone~~]]~~, but it has been modified to exhibit progestogenic activity~~. This ~~modification allows Ethisterone to mimic~~ the ~~action~~ of [[progesterone]], ~~a natural hormone essential for regulating menstruation~~ and ~~maintaining pregnancy~~. ~~Ethisterone works by binding~~ to ~~and activating the progesterone receptor in the body, thereby exerting~~ its ~~effects~~.		Ethisterone acts as a progestogen by binding to the [[progesterone receptor]] in target tissues. This binding mimics the effects of natural [[progesterone]], leading to changes in the [[endometrium]] and regulation of the [[menstrual cycle]]. It also has weak [[androgenic]] activity due to its structural similarity to testosterone.

	==~~Clinical~~ Uses==		==Medical Uses==
	~~Historically,~~ Ethisterone was used ~~to treat a range~~ of ~~conditions, including~~ menstrual disorders, [[endometriosis]], and ~~to prevent miscarriages. It was also used in combination with~~ [[~~estrogen~~]] ~~in some of the first oral contraceptives~~. However, ~~due to~~ the development of ~~more effective~~ and ~~safer progestogens, Ethisterone is no longer widely used in clinical practice~~.		Ethisterone was historically used in the treatment of [[menstrual disorders]], [[endometriosis]], and as a component of [[oral contraceptives]]. However, its use has declined with the development of newer progestogens with improved safety and efficacy profiles.

	==Side Effects ~~and Safety~~==		==Side Effects==
	~~Like~~ other progestogens, ~~Ethisterone can cause side effects, including nausea~~, ~~weight gain~~, and mood changes. ~~Its use has also been associated with an increased risk of certain types of cardiovascular disease, which has contributed~~ to its ~~decline~~ in ~~use. Patients are advised to consult with a healthcare provider to understand the risks and benefits of any hormone therapy~~.		The side effects of ethisterone are similar to those of other progestogens and may include [[nausea]], [[headache]], [[breast tenderness]], and [[mood changes]]. Due to its androgenic activity, it may also cause [[acne]] and [[hirsutism]] in some users.

	==~~Current Status~~==		==Pharmacokinetics==
	~~Today,~~ Ethisterone is ~~of historical interest more than clinical use~~. It ~~represents an important step in~~ the ~~development of synthetic hormones for medical therapy. Researchers continue to study Ethisterone~~ and ~~other early synthetic hormones to better understand their mechanisms of action and to guide~~ the ~~development of new therapeutic agents~~.		Ethisterone is well absorbed when taken orally and undergoes extensive [[first-pass metabolism]] in the liver. It is metabolized primarily by the [[cytochrome P450]] enzyme system and is excreted in the urine.

	==~~See Also~~==		==Related Compounds==
			Ethisterone is related to other synthetic progestogens such as [[norethisterone]] and [[medroxyprogesterone acetate]]. These compounds have been developed to improve the pharmacokinetic and pharmacodynamic properties of progestogens.

			==Related Pages==
	* [[Progestogen]]		* [[Progestogen]]
	* [[Hormone therapy]]		* [[Hormone replacement therapy]]
	* [[Oral contraceptive ~~pill~~]]		* [[Oral contraceptive]]
	* [[~~Endocrinology~~]]		* [[Testosterone]]

	[[Category:Progestogens]]		[[Category:Progestogens]]
	[[Category:~~Endocrinology~~]]		[[Category:Steroids]]
	[[Category:~~Pharmacology~~]]		[[Category:Hormones]]
	~~{{medicine-stub}}~~

	~~<gallery>~~
	~~File:Ethisterone.svg\|Ethisterone~~
	~~File:Ethisterone molecule ball.png\|Ethisterone~~
	~~</gallery>~~
	~~<gallery>~~
	~~File:Ethisterone.svg\|Ethisterone~~
	~~File:Ethisterone molecule ball.png\|Ethisterone~~
	~~</gallery>~~

Prab at 20:53, 16 March 2025

2025-03-16T20:53:17Z

← Older revision		Revision as of 20:53, 16 March 2025
Line 26:		Line 26:
	[[Category:Pharmacology]]		[[Category:Pharmacology]]
	{{medicine-stub}}		{{medicine-stub}}
	~~{{No image}}~~
	<gallery>		<gallery>
	File:Ethisterone.svg\|Ethisterone		File:Ethisterone.svg\|Ethisterone

Prab: CSV import

2025-02-20T01:03:53Z

CSV import

← Older revision		Revision as of 01:03, 20 February 2025
Line 27:		Line 27:
	{{medicine-stub}}		{{medicine-stub}}
	{{No image}}		{{No image}}
			<gallery>
			File:Ethisterone.svg\|Ethisterone
			File:Ethisterone molecule ball.png\|Ethisterone
			</gallery>
	<gallery>		<gallery>
	File:Ethisterone.svg\|Ethisterone		File:Ethisterone.svg\|Ethisterone
	File:Ethisterone molecule ball.png\|Ethisterone		File:Ethisterone molecule ball.png\|Ethisterone
	</gallery>		</gallery>

Prab: CSV import

2025-02-20T01:02:34Z

CSV import

← Older revision		Revision as of 01:02, 20 February 2025
Line 27:		Line 27:
	{{medicine-stub}}		{{medicine-stub}}
	{{No image}}		{{No image}}
			<gallery>
			File:Ethisterone.svg\|Ethisterone
			File:Ethisterone molecule ball.png\|Ethisterone
			</gallery>

Prab: CSV import

2025-02-10T16:49:56Z

CSV import

← Older revision		Revision as of 16:49, 10 February 2025
Line 26:		Line 26:
	[[Category:Pharmacology]]		[[Category:Pharmacology]]
	{{medicine-stub}}		{{medicine-stub}}
			{{No image}}

Prab: CSV import

2024-03-22T13:54:10Z

CSV import

New page

'''Ethisterone''' is a synthetic [[steroid hormone]] belonging to the class of [[progestogens]]. It is an orally active progestogen which was previously used in the treatment of a variety of medical conditions but is now largely obsolete. Ethisterone is considered to be the first orally active progestogen, marking a significant milestone in the development of [[pharmacology]] and [[endocrinology]].

==History==
Ethisterone was synthesized in 1938, making it one of the earliest synthetic progestogens. Its development was part of the broader effort to understand and synthesize hormones that could be used to regulate fertility and treat hormonal disorders. Ethisterone's introduction was a pivotal moment in the history of [[contraceptive]] technology and hormonal therapy.

==Chemical Structure and Mechanism of Action==
The chemical structure of Ethisterone closely resembles that of [[testosterone]], but it has been modified to exhibit progestogenic activity. This modification allows Ethisterone to mimic the action of [[progesterone]], a natural hormone essential for regulating menstruation and maintaining pregnancy. Ethisterone works by binding to and activating the progesterone receptor in the body, thereby exerting its effects.

==Clinical Uses==
Historically, Ethisterone was used to treat a range of conditions, including menstrual disorders, [[endometriosis]], and to prevent miscarriages. It was also used in combination with [[estrogen]] in some of the first oral contraceptives. However, due to the development of more effective and safer progestogens, Ethisterone is no longer widely used in clinical practice.

==Side Effects and Safety==
Like other progestogens, Ethisterone can cause side effects, including nausea, weight gain, and mood changes. Its use has also been associated with an increased risk of certain types of cardiovascular disease, which has contributed to its decline in use. Patients are advised to consult with a healthcare provider to understand the risks and benefits of any hormone therapy.

==Current Status==
Today, Ethisterone is of historical interest more than clinical use. It represents an important step in the development of synthetic hormones for medical therapy. Researchers continue to study Ethisterone and other early synthetic hormones to better understand their mechanisms of action and to guide the development of new therapeutic agents.

==See Also==
* [[Progestogen]]
* [[Hormone therapy]]
* [[Oral contraceptive pill]]
* [[Endocrinology]]

[[Category:Progestogens]]
[[Category:Endocrinology]]
[[Category:Pharmacology]]
{{medicine-stub}}