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GlossaryPharmacokinetic Parameters

Pharmacokinetic parameters refer to the characteristics that describe how a drug is absorbed, distributed, metabolized, and excreted in the body. In the context of hair loss treatments, understanding these parameters is crucial for determining the efficacy and safety of medications, such as minoxidil or finasteride, used to combat hair loss. Key distinguishing characteristics include the drug's half-life, bioavailability, and clearance rate, which can influence treatment outcomes and potential side effects in individuals experiencing hair loss.

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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

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 3 3Abbreviations: r5AR1, rat 5α-reductase 1; r5AR2, rat 5α-reductase 2; and DHT, dihydrotestosterone.

22 citations , October 2001 in “Biochemical Pharmacology”

GI198745 is more potent and longer-lasting than finasteride, potentially better for treating hair loss.

Formulation of a Film-Coated Dutasteride Tablet Bioequivalent to a Soft Gelatin Capsule (Avodart): Effect of Gamma-Cyclodextrin and Solubilizers

research Formulation of a film-coated dutasteride tablet bioequivalent to a soft gelatin capsule (Avodart®): Effect of γ-cyclodextrin and solubilizers

4 citations , May 2019 in “Asian Journal of Pharmaceutical Sciences”

Created tablet similar to Avodart using γ-cyclodextrin and solubilizers.

Evaluation of Bioequivalence of Five 0.1 mg Dutasteride Capsules Compared to One 0.5 mg Dutasteride Capsule: A Randomized Study in Healthy Male Volunteers

research Evaluation of bioequivalence of five 0.1 mg dutasteride capsules compared to one 0.5 mg dutasteride capsule: a randomized study in healthy male volunteers

3 citations , January 2015 in “Journal of drug assessment”

Taking five small dutasteride capsules is the same as taking one larger capsule.

research Bioequivalence study of generic finasteride in healthy male volunteers.

2 citations , September 2011 in “Chiang Mai Medical Journal - เชียงใหม่เวชสาร”

The generic finasteride is equivalent to the original.

research Bioequivalent Assessment of Finasteride Granules in Chinese Healthy Volunteers

January 2009 in “Chinese Journal of Drug Application and Monitoring”

Finasteride granules and tablets work the same in the body.

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community Haunting study is making me considering cycling fin/dut

in Research/Science 158 upvotes 11 months ago

Concerns about the long-term effects of dutasteride and finasteride on fertility, with discussions on cycling these medications to mitigate risks. The conversation highlights skepticism about study methodologies and the importance of weighing treatment risks against potential fertility issues.

community Research Backed Dutasteride Simulator (Serum/scalp DHT included for all doses)

in Research 598 upvotes 1 year ago

A Dutasteride Simulator predicts serum dutasteride, serum DHT, and scalp DHT levels using models from research papers. It simulates various dosing schedules to determine steady-state effects and visualizes outcomes, including hair growth-related scalp DHT suppression.

community Pp405 phase 2a clinical results

in Research/Science 40 upvotes 1 year ago

PP405 shows initial promise for treating androgenetic alopecia, with safety confirmed in early trials, but skepticism remains due to limited data. Further trials are needed to determine its true efficacy and potential market impact.

community Estradiol mesotherapy / idea feedback

in Female 6 upvotes 1 year ago

The conversation discusses using estradiol mesotherapy to replicate hormone replacement therapy results while minimizing systemic exposure. It also covers the use of Spironolactone cream, which reportedly has no systemic side effects, and the potential risks of using bicalutamide and Spironolactone in men.

community 📈 Solving for very low dose topical finasteride titration intervals

in Research/Science 30 upvotes 1 year ago

The conversation discusses using very low dose topical finasteride to achieve specific serum DHT reduction percentages. It concludes that finasteride dosage increases linearly between 5-30% DHT reduction but requires exponential increases for reductions up to 70%.

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