UV Spectrophotometric Method for Determination of Finasteride in Bulk and Pharmaceutical Dosage Form

Topical finasteride may have higher systemic absorption and lower efficacy when using a Propylene Glycol/Ethanol formulation compared to the hydroxypropyl chitosan (HPCH) formulation. The safety profile of topical finasteride relies heavily on the HPCH formulation, and using standard solutions might lead to different pharmacokinetics.

A user is seeking feedback on a homemade topical finasteride formula for hair loss, consisting of 7.5 mg of finasteride, propylene glycol, ethanol, and distilled water. They aim to achieve a 0.0125% solution by applying 2 ml daily.

A user noticed a color change in their hair loss solution containing minoxidil, finasteride, retinoic acid, and hydrocortisone after storing it for several months. They are concerned about the effectiveness of the solution due to potential oxidation.

A user received a topical finasteride solution from a pharmacy, which likely dissolved finasteride tablets instead of using pure finasteride powder, resulting in sediment. The user expressed dissatisfaction, expecting pure powder, and discussed the pros and cons of DIY solutions and the use of minoxidil with finasteride.

The conversation discusses using 0.5mg dutasteride for hair loss and the decision to switch back to finasteride pills due to insufficient suppression. It highlights the importance of drug formulation and potential issues with absorption or degradation.

OP is trying to dissolve finasteride powder for a topical solution but faces issues with it not dissolving properly in ethanol or water. Users suggest methods like using a magnetic stirrer, shaking the mixture, or filtering out fillers, with some noting that finasteride is soluble in alcohol.