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Did you mean Estrogen Receptor Antagonist?

GlossaryEstrogen Receptor Antagonist

blocks estrogen from activating its cellular receptors

An Estrogen Receptor Antagonist, also known as an Estrogen Blocker or ER Antagonist, is a substance that binds to estrogen receptors on cells and prevents estrogen from exerting its effects. This can be useful in treating conditions like hormone-sensitive cancers, such as certain types of breast cancer, by inhibiting the growth-promoting effects of estrogen on these cancer cells.

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community Update: Chest discomfort from RU58841

in Update 34 upvotes 8 months ago

A user experienced severe chest pains and shortness of breath after using RU58841 for hair loss and was advised by a doctor that blocking androgens can weaken the heart. They decided to continue with finasteride, minoxidil, and a hair transplant instead.

community Kintor KX-826 Group Buy Feedback

in Research/Science 31 upvotes 2 years ago

The conversation is about a group of people trying KX-826 for hair loss, with no serious side effects reported after 25 days of use. Some participants are experiencing less scalp itch and shedding, but it's too early for definitive results.

community Increased adipose tissue (being overweight) in males may increase likelyhood of finasterde side effects

in Research/Science 29 upvotes 2 months ago

Being overweight may increase finasteride side effects due to higher aromatase activity converting testosterone to estradiol. Maintaining a healthy weight could reduce these side effects.

community to all people who cannot tolerate anti androgens (loe dose topical fin, pyrilutamide, CB) i am getting desperate, looking for a solution

in Research/Science 13 upvotes 1 year ago

The user tried Minoxidil without success, and Finasteride worked but caused sexual side effects even at a very low dose. They are seeking alternative treatments for hair loss as they cannot tolerate anti-androgens and are also in therapy for mental health.

community CB-03-01 supposed hair loss cure

in Treatment 10 upvotes 3 years ago

The conversation discusses why CB-03-01, a potential hair loss treatment, isn't widely discussed despite evidence of its effectiveness and safety. Some users mention other treatments like melatonin, procianidin b2, and RU58841, debating their effectiveness and safety.

community GT20029 China Phase II Trial For AGA Reached Primary Endpoint

in Research/Science 136 upvotes 6 months ago

The GT20029 tincture, a topical androgen receptor degrader, showed significant hair growth and good safety in a China Phase II trial for male androgenetic alopecia (AGA), with the 1% dose twice weekly identified as optimal. The company plans to initiate Phase III trials in China and Phase II in the U.S., and the treatment also shows promise for acne.

community If we lose hair because of our sensitivity to DHT, then why are we trying to reduce DHT when our sensitive androgen receptors are the culprit?

in Finasteride/Dutasteride 13 upvotes 2 years ago

The conversation discusses the effectiveness of reducing DHT for hair loss treatment and explores alternative approaches like reducing androgen receptor sensitivity. Specific treatments mentioned include finasteride, dutasteride, pyrilutamide (KX-826), GT20029, and RU58841.

community HLT Megathread on HMI-115 (key takeaways in comments)

in Research/Science 39 upvotes 1 year ago

HMI-115, a newly discovered hair loss treatment that could potentially be effective for those with diffuse thinning and telogen effluvium. It is based on prolactin receptor antagonist signaling and has already undergone Phase I trials in women, with potential commercialization by 2027.

community PYRILUTAMIDE PHASE 3 RESULTS : No statistical significance

in Research/Science 123 upvotes 11 months ago

The phase 3 trial results for Pyrilutamide showed no significant difference from the control treatment in increasing hair count, leading to the company halting its development. Users discussed their disappointment and skepticism about hair loss treatments, with some mentioning other treatments like Minoxidil, Finasteride, and RU58841.

community One year anti androgen update CROWN

in Finasteride/Dutasteride 337 upvotes 1 year ago

User used Finasteride, Dutasteride, and Minoxidil for one year to treat hair loss. They discussed possibly trying RU58841 or pyrilutamide in the future.

community It’s over. NOTHING has worked.

in Chat 95 upvotes 1 year ago

A user who has been trying various treatments for hair loss for four years, with no success. Suggestions include use of minoxidil, finasteride, RU58841, microneedling, supplements and multivitamins, lifestyle changes, scalp biopsy, and SMP.

community pyrilutamide phase 2 results right here, thanks to user Glaringbooch

in Chat 44 upvotes 2 years ago

Pyrilutamide, a new drug being tested to combat hair loss that has been found to perform comparably or better than finasteride and dutasteride in the initial 6 months of treatment with minimal reported side effects.

community Would Fluridil and Alfatradiol work effectively in conjunction with each other?

in Treatment 9 upvotes 4 years ago

Whether using both Fluridil and Alfatradiol together could be more effective than either one alone as a hair loss treatment, given their different mechanisms of action.

community Fluridil/Topilutamide (Eucapil) gave me achy balls, but seems to work

in Treatment 9 upvotes 4 years ago

Treatments for hair loss, focusing on Fluridil/Topilutamide (Eucapil), Finasteride and RU58841 (Alfatradiol). The user reported that the Fluridil seemed to work well but had side effects of testicle ache, decreased mood and sex drive.

community Is there a topical androgen receptor blocker so we don't have to fuck with the enzyme and destroy our allopregnanolone, but go and hit the end target straight?

in Treatment 46 upvotes 5 months ago

The conversation discusses topical androgen receptor blockers for hair loss, mentioning Clascoterone, Pyrilutamide, GT20029, and RU58841. Ketoconazole's effectiveness and application methods are also debated.

community My hairloss stack, progress pics soon maybe for 1 year RU

in Technology 49 upvotes 1 year ago

The conversation is about a user's hair loss treatment routine, which includes RU58841 for 9 months and Dutasteride for 6 months, with other unspecified treatments considered extra. One user inquired about the source of RU58841.

community Roughly 1.5 years progress. Dut, Fin, Minox, RU.

in Progress Pictures 798 upvotes 2 years ago

A user's progress with treatments for hair loss, including Dutasteride, Finasteride, Minoxidil, and RU. Other members of the conversation provided tips such as using Microneedling and Tretinoin to increase regrowth and wounding areas of the scalp that are thinning in order to fill them in.

community Reminder that Kintors Pyrilutamide results will be out this month

in Treatment 179 upvotes 3 years ago

Kintor's Pyrilutamide results for hair loss treatment will be released soon. The treatment may replace current treatments like finasteride and minoxidil without systemic side effects.

community Natural Remedies: Polyphenols and Hair Loss

20 upvotes 5 years ago

Natural remedies to treat hair loss, such as polyphenols, apple peel extract, grape seed extract, green tea extract, peppermint oil, pumpkin seed oil, apigenin, Ginkgo biloba, red clover extract, olive leaf extract, Ecklonia Cava and Grateloupia elliptica. In addition, terpenes, carotenoids, and tocopherols were discussed as potential treatments.

community Why is Kevin Mann (Haircafe) Hated?

in Chat 62 upvotes 1 year ago

Hair loss treatments, including microneedling, minoxidil, finasteride and RU58841; the efficacy of these treatments; criticisms of Kevin Mann's content related to his selective data presentation and biases towards certain treatments; and other topics such as DHT being labeled a "trash hormone" and critiques of other hairloss YouTubers.

community My Testosterone results before and after Finasteride

in Update 146 upvotes 3 years ago

Finasteride significantly increased testosterone levels for the user, with no major side effects except watery semen, which was resolved with zinc supplements. The user's hairline stopped receding and slightly improved.

community Maintaining hair until Breezula without Fin

in Treatment 6 upvotes 4 years ago

A 21-year-old male experienced side effects from topical finasteride and is seeking alternative treatments to maintain hair until Breezula is available. He is considering using minoxidil, Nizoral, micro-needling, and vitamin D supplementation, and may try CB or RU58841 if necessary.

community I’ve been on dutesteride and oral minoxidil for two years now and I’ve only lost ground… 25m What should I do?

in Treatment 33 upvotes 6 months ago

A user on dutasteride and oral minoxidil for two years has experienced worsening hair loss and an itchy scalp. Suggestions include increasing medication doses, trying other treatments like RU58841, getting a scalp biopsy, and addressing potential inflammation through diet and topical treatments.

community Why is it that low testosterone causes hair loss as well? How can I be balding?

in Chat 158 upvotes 6 months ago

The conversation discusses the confusion over low testosterone potentially causing hair loss, with users sharing personal experiences and knowledge about hair loss treatments like Finasteride. Some users suggest that hair follicle sensitivity to DHT, not testosterone levels, is the key factor in balding, and others discuss the side effects of hair loss medications.

community 18->24 six years of Fin and Minox…. I guess we can’t all be winners 😭

in Progress Pictures 572 upvotes 1 year ago

A user named "EgyptStar81" who has been dealing with hair loss since age 15 due to genetics, chemotherapy and finasteride/minoxidil treatment. Possible solutions such as dutasteride, oral minoxidil, hair transplants and extensions were suggested.

community hmi115 is coming. Prepare yourselves for what's coming

in Technology 108 upvotes 1 year ago

The conversation discusses HMI-115, a potential cure for hair loss. Users share mixed opinions, with some expressing skepticism and others sharing anecdotal evidence of its effectiveness, including photos of significant hair regrowth from a trial participant.

community I find it funny a bunch of us on here are on drugs for hairloss and maintain clean/healthy lives and then there’s these mf’s in the 90’s juiced to the gills with steroids and have better hair than all of us lol

in Satire 353 upvotes 1 year ago

The conversation is about the effects of steroids on hair loss. Some users believe that steroids can cause hair loss, while others argue that it depends on individual sensitivity to DHT. There is also discussion about the appearance of balding individuals who use steroids.

community Solving Hair Loss with Research at MIT

in Research/Science 592 upvotes 2 weeks ago

Hair loss treatments like minoxidil, finasteride, TDM-105795, and PP405. MIT is hosting a hackathon to find innovative hair loss solutions.

community Pyrilutamide Phase 2 Results Release Date: June 2022

in Research/Science 111 upvotes 2 years ago

Hair loss treatments discussed include Minoxidil, Finasteride, and RU58841. Pyrilutamide Phase 2 results are expected in June 2022, with hopes for a better alternative to current treatments.

community ~5 months topical minoxidil + oral finasteride results (swipe images). Slacked with minoxidil this past month, trying to wean off anyways. My last update because I’m hopping off fin and switching to RU in a few weeks (nothing to do with fin efficacy, just experimenting).

in Progress Pictures 146 upvotes 4 years ago

The user experienced significant hair thickening after using topical minoxidil and oral finasteride for about 5 months and is considering switching from finasteride to RU58841. Other users encourage the original poster to continue the current treatment due to the positive results.