A New Look at the 5α-Reductase Inhibitor Finasteride
January 2006
TLDR Finasteride, a medication, is being re-evaluated for its effects and uses.
Research cited in this study
45 / 45 results
research Finasteride Blocks the Reduction in Ictal Activity Produced by Exogenous Estrous Cyclicity
research Sex Differences in the Effect of Finasteride on Acute Ethanol Withdrawal Severity in C57BL/6J and DBA/2J Mice
Finasteride reduces alcohol withdrawal severity in male mice but increases it in female mice.
research Treatment With and Withdrawal From Finasteride Alter Ethanol Intake Patterns in Male C57BL/6J Mice: Potential Role of Endogenous Neurosteroids
Finasteride affects alcohol intake in male mice, possibly due to neurosteroids.
research Effects of Finasteride on Chronic and Acute Ethanol Withdrawal Severity in the WSP and WSR Selected Lines
Finasteride reduces alcohol withdrawal severity and anxiety in mice, but may increase withdrawal severity in some cases.
research Reversal of Caffeine-Induced Anxiety by Neurosteroid 3-Alpha-Hydroxy-5-Alpha-Pregnane-20-One in Rats
A neurosteroid can reduce caffeine-induced anxiety in rats.
research GABRA2 Alleles Moderate the Subjective Effects of Alcohol, Which Are Attenuated by Finasteride
GABRA2 gene variations impact alcohol response, and hair loss medication finasteride reduces some effects.
research Attenuating 5α-Pregnane-3α-Ol-20-One Formation in the Hippocampus of Female Rats Increases Pentylenetetrazole-Induced Seizures
Reducing 3α,5α-THP in the hippocampus increases seizures in female rats.
research Anxiolytic Activity of Progesterone in Progesterone Receptor Knockout Mice
Progesterone reduces anxiety without needing progesterone receptors.
research Evaluation and Treatment of Male and Female Pattern Hair Loss
Early diagnosis and treatment, using finasteride, minoxidil, or hair transplantation, improves hair loss outcomes.
research Dihydrotestosterone And The Prostate: The Scientific Rationale For 5α-Reductase Inhibitors In The Treatment Of Benign Prostatic Hyperplasia
Drugs that block DHT production can effectively treat enlarged prostate and improve urinary issues with some sexual side effects.
research Intermittent Low-Dose Finasteride Is as Effective as Daily Administration for the Treatment of Hirsute Women
Intermittent low-dose finasteride works as well as daily use for treating excessive hair growth in women.
research Ethanol-Induced Elevation of 3α-Hydroxy-5α-Pregnan-20-One Does Not Modulate Motor Incoordination in Rats
Ethanol-induced motor incoordination in rats is not affected by increased neuroactive steroids.
research Hippocampal 3α,5α-THP May Alter Depressive Behavior of Pregnant and Lactating Rats
Higher 3α,5α-THP levels in the brain may reduce depression in pregnant rats.
research Interaction of Chronic Ethanol Exposure and Finasteride: Sex and Strain Differences
Finasteride reduces alcohol withdrawal effects, especially in female mice.
research Anticonvulsant Activity of Progesterone and Neurosteroids in Progesterone Receptor Knockout Mice
Progesterone's seizure-reducing effects are mainly due to allopregnanolone, not progesterone receptors.
research Relative Safety and Efficacy of Finasteride for Treatment of Hirsutism
Finasteride reduces hirsutism effectively with fewer side effects but is a second-choice treatment due to safety concerns.
research Finasteride in the Treatment of Androgenetic Alopecia
Finasteride effectively treats male pattern baldness, improving hair growth and density.
research The Role of Pregnane Neurosteroids in Ethanol Withdrawal: Behavioral Genetic Approaches
Adjusting neurosteroid levels may help reduce alcohol withdrawal symptoms.
research Finasteride Treatment of Patterned Hair Loss in Normoandrogenic Postmenopausal Women
Finasteride can slow hair loss and promote growth in postmenopausal women.
research Testosterone Modulation of Seizure Susceptibility Is Mediated by Neurosteroids 3α-Androstanediol and 17β-Estradiol
Testosterone increases seizure risk through its conversion to specific neurosteroids.
research Finasteride Inhibits the Progesterone-Induced Spike-Wave Discharges in a Genetic Model of Absence Epilepsy
Finasteride blocks progesterone's effect on absence seizures in rats.
research Use of Cyproterone Acetate, Finasteride, and Spironolactone to Treat Idiopathic Hirsutism
All three treatments reduce hirsutism, but spironolactone works best long-term.
research Low-Dose (2.5 mg/Day) Finasteride Treatment in Hirsutism
Low-dose finasteride effectively reduces hirsutism without serious side-effects.
research Progesterone Enhances Ethanol-Induced Modulation of Mesocortical Dopamine Neurons: Antagonism by Finasteride
Progesterone boosts alcohol's effect on brain, finasteride counters it.
research Depression Related to Finasteride Administration for Androgenetic Alopecia
Finasteride for hair loss may cause depression, affecting sleep and relationships.
research A Comparison of the Relative Efficacy of Antiandrogens for the Treatment of Acne in Hyperandrogenic Women
Flutamide and CPA are more effective than finasteride for treating acne in hyperandrogenic women.
research Changes in Progesterone Metabolites in the Hippocampus Can Modulate Open Field and Forced Swim Test Behavior of Proestrous Rats
Lowering 3α,5α-THP in the hippocampus increases anxiety and depression in proestrous rats.
research Stress-Induced Deoxycorticosterone-Derived Neurosteroids Modulate GABA A Receptor Function and Seizure Susceptibility
Stress increases neurosteroids that help prevent seizures.
research Pharmacokinetic Parameters and Mechanisms of Inhibition of Rat Type 1 and 2 Steroid 5α-Reductases: Determinants for Different In Vivo Activities of GI198745 and Finasteride in the Rat
GI198745 is more potent and longer-lasting than finasteride, potentially better for treating hair loss.
research Comparison of Diane 35 and Diane 35 Plus Finasteride in the Treatment of Hirsutism
Diane 35 plus finasteride is more effective for treating hirsutism.
research A Prospective, Randomized Trial Comparing Flutamide (250 mg/d) and Finasteride (5 mg/d) in the Treatment of Hirsutism
Flutamide reduces hair growth better but has more side effects.
research Finasteride, a Type 2 5α-Reductase Inhibitor, in the Treatment of Men with Androgenetic Alopecia
Finasteride effectively treats male hair loss, improving growth and density.
research Finasteride, a 5alpha-Reductase Inhibitor, Blocks the Anticonvulsant Activity of Progesterone in Mice
Finasteride, a drug, can block the seizure-preventing effects of a hormone called progesterone in mice.
research A Model for the Turnover of Dihydrotestosterone in the Presence of the Irreversible 5α-Reductase Inhibitors GI198745 and Finasteride
Both drugs lower DHT levels, with GI198745 being more effective.
research 5α-Reductase Inhibitors: Chemical and Clinical Models
Researchers developed a model to predict how well certain compounds can block an enzyme related to hair loss and prostate issues, suggesting a 50 mg dose of finasteride might be effective based on lab and body data.
research Inhibition of Rat Alpha-Reductases by Finasteride: Evidence for Isozyme Differences in the Mechanism of Inhibition
Finasteride effectively blocks rat enzymes, but with varying methods and strength.
research Clinical Pharmacokinetics and Pharmacodynamics of Finasteride
Finasteride helps regrow hair and shrink prostate by reducing DHT, with some sexual side effects.
![Synthesis of 5,6,6-[2H3]Finasteride and Quantitative Determination of Finasteride in Human Plasma at Picogram Level by an Isotope-Dilution Mass Spectrometric Method](/images/research/0026b639-99a8-455a-a986-c39aa65abfa9/small/2087.jpg)
research Synthesis of 5,6,6-[2H3]Finasteride and Quantitative Determination of Finasteride in Human Plasma at Picogram Level by an Isotope-Dilution Mass Spectrometric Method
Accurate method measures finasteride levels in human plasma using gas chromatography-mass spectrometry.
research Clinical and Endocrine Effects of Finasteride, a 5α-Reductase Inhibitor, in Women with Idiopathic Hirsutism
Finasteride reduces hairiness and androgen levels in women with unexplained excessive hair growth.
research Age-Related Changes in Brain and Pituitary 5α-Reductase with Finasteride (Proscar) Treatment
Finasteride affects prostate weights and pituitary activity differently with age.
research The Effect of Finasteride, a 5 Alpha-Reductase Inhibitor, on Scalp Skin Testosterone and Dihydrotestosterone Concentrations in Patients with Male Pattern Baldness
Finasteride reduces scalp DHT levels, potentially treating male pattern baldness.
research Four-Amino Acid Segment in Steroid 5 Alpha-Reductase 1 Confers Sensitivity to Finasteride, a Competitive Inhibitor
Four-amino acid part makes enzyme sensitive to finasteride.
research Disposition and Pharmacokinetics of [14C]Finasteride After Oral Administration in Humans
research The Clinical Development of a 5α-Reductase Inhibitor, Finasteride
Finasteride effectively treats BPH, but needs more trials to understand potential.
research Effects of Finasteride (MK-906), a 5α-Reductase Inhibitor, on Circulating Androgens in Male Volunteers
Finasteride safely lowers DHT levels without affecting testosterone.
Related Community Posts Join
6 / 181 resultscommunity Six months of only Dermarolling
User tried dermarolling for hair loss and shared progress pictures. Some suggest adding finasteride and minoxidil, while others debate effectiveness and frequency of dermarolling.
community 5α-Reductase inhibitors do not impair cognition.
The conversation concludes that finasteride, a 5α-Reductase inhibitor used for hair loss, does not impair cognition either short-term or long-term. It suggests "brain fog" is not caused by the medication.
community Using Fin and Alfatradiol in conjunction?
User considers adding Alfatradiol to their topical finasteride treatment for hair loss. Others discuss Alfatradiol as a weak estrogen and 5α-reductase inhibitor used for pattern hair loss in men and women.
community FCE 28260: A Forgotten 5α-Reductase Inhibitor
by
nkrata
in Research
330 upvotes
1 year ago FCE 28260 (PNU 156765), an under-explored 5α-reductase inhibitor, showcases promising results in research by Giudici et al., outperforming well-known treatments like Finasteride in reducing the conversion of testosterone to DHT. Its superior efficacy, demonstrated through lower IC50 values in both natural and human recombinant enzyme studies, suggests it could offer more effective management of DHT-related conditions. Additionally, its lower molecular weight hints at better potential for topical application, potentially offering advantages in treating conditions such as androgenic alopecia. Despite its potential, it has not advanced in development, possibly due to financial limitations, leaving its therapeutic prospects and side effect profile largely unexplored.
community Thoughts on Pantostin Alfatradiol?
User started using Pantostin Alfatradiol after watching haircafe on YouTube and noticed thicker hair. They wonder why it's not more popular, as it's a 5α-reductase inhibitor with a different mechanism than minoxidil.
community Almost 1 year dut + 3 month minoxidil
The post and conversation are about a user's progress with hair loss. The user used dutasteride (DUT) for 9 months and then added minoxidil for 3 months. They experienced significant improvements in hair growth and stopped their hair loss.
Related Research
4 / 4 results
research A New Look at the 5-Alpha-Reductase Inhibitor Finasteride
Finasteride treats enlarged prostate and hair loss, but may cause side effects in some patients.
research Androgen Biosynthesis Inhibitors And Androgen Receptor Antagonists
Anti-androgen drugs can treat conditions like prostate cancer and male pattern baldness by blocking effects of testosterone and DHT.
research Steroid 5α-Reductases and 3α-Hydroxysteroid Dehydrogenases: Key Enzymes in Androgen Metabolism
Key enzymes control androgen levels, affecting hormone activity and potential treatments.
research Antihormonal Properties of Some New A-Homo-B, 19-Dinor Steroids of the Androstane Series
New A-homo-B, 19-dinor steroids showed strong antiandrogenic activity without affecting the enzyme 5α-reductase or androgen receptor binding.