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Whether taking finasteride and dutasteride can cause penile shrinkage, with long-term users providing their personal experiences.

User 36 years old, receding hairline, tried minoxidil, Nizoral, dermarolling, alfatradiol, revivogen, and spiro cream with limited success. Two dermatologists refused to prescribe finasteride. Others shared experiences and suggested finding a different dermatologist.

The conversation discusses arranging an interview with the developers of RU58841 to clarify its safety and reasons for halted research, with some users expressing concerns about potential risks and others citing financial reasons for the discontinuation of studies. Specific treatments mentioned include RU58841, minoxidil, and finasteride.

The conversation discusses finding a finasteride dosage that reduces DHT by about 25% to minimize side effects, with considerations for topical versus oral formulations. Alternatives like dutasteride mesotherapy and topical treatments are explored, with concerns about systemic absorption and potential impacts on athletic performance and hormone levels.

Regrowing hairline without the use of Minoxidil or Finasteride, and instead using mechanical stimulation such as Derma Roller, Nizoral, Zinc Pyrithione, Scalp Massage, Scalp Exercise, Fish Oil and other topical solutions. It is cautioned that there are risks associated with not using medically-prescribed treatments, but it is suggested to consider mechanical stimulation in addition to those prescribed treatments.

Minoxidil is extremely toxic to cats, even from residue on surfaces, and can be deadly if they come into contact with it. Switching to oral minoxidil is suggested as a safer alternative for pet owners.

The user experienced severe side effects from finasteride, including hormonal imbalances and cognitive issues, leading to a recommendation to stop its use. They plan to follow up with tests to rule out a pituitary tumor and are considering topical treatments as alternatives.

Finasteride and Propecia are essentially the same, but some people may respond differently due to inactive ingredients. If cost is not an issue, Propecia is preferred due to better quality control and consistent results.

Some people have side effects from finasteride and dutasteride due to hormonal predisposition, especially if DHT dominant. Alternatives like RU58841, Pyrilutamide, and Breezula are suggested to target scalp androgen receptors without altering overall hormones.

The user has been using topical Minoxidil since April 2025 and Finasteride since September 2025, but their bald spot has worsened. They are considering switching to oral Minoxidil and have been advised to be patient, see a dermatologist, and possibly try additional treatments like derma rolling.

A user shared their 4-month progress using oral Minoxidil (3mg) and Finasteride (1.1mg) with a 0.5mm derma roller twice a week, noting visible improvement. Others congratulated and encouraged them to continue the treatment.

A user on finasteride for 8 months shared bloodwork results showing increased testosterone and estradiol levels, with concerns about high LH. Responses advised monitoring for symptoms but noted levels are within reference ranges.

A user is concerned about weight loss stagnation while using minoxidil and finasteride during a calorie-cutting diet. Responses suggest water retention or a weight loss plateau as possible causes.

Dutasteride works for most men, but some may experience worsening due to reasons like shedding, paranoia, non-androgenic alopecia, genetic variations, or smoking. Smoking can increase scalp DHT levels and damage follicles.

User shares link to conference about Pyrilutamide. Discussion includes phase 2 results, company's plans, and upcoming phase 3 trial.

RU58841 showed promise for treating androgenic alopecia but research was halted due to financial and organizational changes. There were no significant safety concerns reported in human trials.

User spent 23 years on Finasteride with side effects like weight gain and reduced libido. Switched to topical Finasteride, side effects reduced and waiting for results.

Clascoterone (CB) shows an excellent safety profile with no serious side effects, but its effectiveness may decline after six months, making it more suitable as an adjunct treatment with finasteride and minoxidil rather than a standalone solution. Some argue it could be better than finasteride due to its protection against testosterone, but its long-term efficacy remains debated.

The conversation discusses the effects of finasteride on libido, with the original poster experiencing a significant decrease in sexual desire after starting the medication. Other users share similar experiences and suggest potential remedies, including Vitamin E supplementation and lifestyle changes like avoiding pornography.

Minoxidil is highly toxic to cats and can be fatal with minimal exposure. Users suggest switching to oral minoxidil or taking precautions to prevent pet exposure.

DIM is suggested to help with estrogen metabolism for those on finasteride or dutasteride, potentially reversing side effects like fat gain and mood changes. Some users doubt its effectiveness, recommending lifestyle changes or consulting a doctor instead.

Finasteride can cause gynecomastia due to hormonal imbalances, and using an aromatase inhibitor like anastrozole can help manage these side effects. It's important to work with an endocrinologist to address these issues safely.

Finasteride can cause gynecomastia due to hormonal imbalances. Management includes consulting an endocrinologist and using aromatase inhibitors like anastrozole or supplements like DIM and zinc.

Dutasteride takes 1-3 months to affect scalp DHT levels, not just a week. The prostate absorbs Dutasteride faster than the scalp due to different vascular networks and enzyme densities.

Users discuss aggressive promotion of Koshine 826, suspecting Kintor employees are behind it. Concerns are raised about its effectiveness, with some preferring alternatives like finasteride and minoxidil.

KX-826 Pyrilutamide 1% is launching soon, and users are discussing its potential benefits and drawbacks compared to other treatments like Minoxidil and finasteride. Some users are skeptical about its effectiveness, while others are hopeful it will be a safer alternative.

The conversation discusses the side effects of finasteride, including low libido and erectile dysfunction, and the possibility of these effects being permanent, known as post-finasteride syndrome (PFS). Some users report personal experiences with PFS and debate whether the condition is real, with varying opinions on the reversibility of side effects and the role of individual biology.

Concerns about a potential ban on finasteride and dutasteride due to side effects, with users advocating for continued access and informed choice. Alternative treatments like pyrilutamide are also mentioned.

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.

The conversation is about the potential dangers of taking oral minoxidil and grapefruit juice together. Some users express concern about dangerous drug interactions, while others argue that grapefruit juice may inhibit the metabolism of finasteride. The conclusion is that grapefruit juice may make finasteride less effective, but it won't affect minoxidil.