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GlossaryNonsteroidal Antiandrogens

medications that block male hormones without activating their receptors

Nonsteroidal Antiandrogens (NSAA) are medications that block the action of androgens (male hormones like testosterone) by binding to androgen receptors without activating them. They are commonly used in the treatment of conditions like prostate cancer and androgenic alopecia (hair loss) by preventing androgens from stimulating the growth of cancer cells or hair follicles.

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Research

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Preliminary Pharmacokinetics and Metabolism of Novel Non-Steroidal Antiandrogens in the Rat: Relation of Their Systemic Activity to the Formation of a Common Metabolite

research Preliminary pharmacokinetics and metabolism of novel non-steroidal antiandrogens in the rat: Relation of their systemic activity to the formation of a common metabolite

16 citations , October 1994 in “The Journal of Steroid Biochemistry and Molecular Biology”

Two non-steroidal antiandrogens, RU 58841 and RU 56187, form a common metabolite at different rates, which may influence their effects; RU 56187 could be used for prostate cancer treatment and RU 58841 for acne treatment.

A Controlled Study of the Effects of RU58841, a Non-Steroidal Antiandrogen, on Human Hair Production by Balding Scalp Grafts Maintained on Testosterone-Conditioned Nude Mice

research A controlled study of the effects of RU58841, a non-steroidal antiandrogen, on human hair production by balding scalp grafts maintained on testosterone-conditioned nude mice

10 citations , November 1997 in “British Journal of Dermatology”

RU58841 significantly increases hair growth rate and initiates more hair cycles, but doesn't affect hair thickness, suggesting it could be a new treatment for baldness.

Synthesis and Structure–Activity Relationships of the First Ferrocenyl-Aryl-Hydantoin Derivatives of the Nonsteroidal Antiandrogen Nilutamide

research Synthesis and Structure–Activity Relationships of the First Ferrocenyl-Aryl-Hydantoin Derivatives of the Nonsteroidal Antiandrogen Nilutamide

88 citations , February 2008 in “Journal of Medicinal Chemistry”

Scientists made the first metal-based compounds from a nonsteroidal antiandrogen drug, which showed potential in fighting both hormone-dependent and independent prostate cancer cells.

Histological and Immunohistochemical Examination of the Effect of the Nonsteroidal Antiandrogen Flutamide on Some Organs of the Male Reproductive System in Albino Rats

research Histological and immunohistochemical examination of the effect of the nonsteroidal antiandrogen {flutamide} on some organs of the male reproductive system in albino rats

September 2012 in “The Egyptian Journal of Histology”

Flutamide caused damage to male rat reproductive organs and may affect fertility.

research A controlled study of the effects of RU58841, a non-steroidal antiandrogen, on human hair production by balding scalp grafts maintained on testosterone-conditioned nude mice

9 citations , November 1997 in “British Journal of Dermatology”

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community Does anyone use Fluridil as their anti-androgen of choice?

in Chat 5 upvotes 2 years ago

Fluridil, a non-steroidal anti-androgen approved for alopecia in parts of Europe, is noted for its low side effects but is not commonly discussed. The user is inquiring if anyone prefers it over other anti-androgens like Spiro or RU58841.

community Has anyone find a way to stop/limit ru58841 to go systematic ?

in Finasteride/Dutasteride 4 upvotes 1 year ago

RU58841 is a strong non-steroidal antiandrogen for hair loss but may cause cardiovascular issues in some users. Alternatives like Pyrilutamide and Breezula are suggested due to better safety profiles and lower systemic risks.

community Binding affinity of pyrilutamide!

in Update 168 upvotes 4 years ago

Pyrilutamide, a nonsteroidal antiandrogen drug under development for the potential treatment of androgenic alopecia. The conversation discusses its binding affinity to the androgen receptor and the timeline for possible availability after trials are completed in the United States and China.

community Fluridil downregulates androgen receptor expression?

in Research/Science 1 upvotes 2 years ago

Fluridil may decrease the number of androgen receptors in hair follicles by up to 95%. This suggests a different action mechanism from other non-steroidal antiandrogens like RU58841, indicating they might be used together.

community [Research] RU-58841/Pyrilutamide and impacts on male fertility

in Research/Science 5 upvotes 2 years ago

The drugs RU-58841, Pyrilutamide (KX-826), Apalutamide, Enzalutamide, and Darolutamide, which are nonsteroidal antiandrogens (NSAA), potentially impacting male fertility. Pyrilutamide, similar to Enzalutamide, may have reversible effects on fertility.

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Learn

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learn Bicalutamide

a nonsteroidal anti-androgen, most commonly used orally for women

learn Pyrilutamide

highly targeted anti-androgen that might have minimal systemic effects

learn Overview

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