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Yes, Finasteride works forever. Over the years, various studies have proven that Finasteride’s effectiveness does not diminish over time (instead, it will increase). So, it will continue to prevent your hair from balding even after you’re in your 70s.
Finasteride 5mg is effective at treating the symptoms and delaying the progression of BPH. Finasteride 1mg temporarily reverses hair loss in men with androgenetic alopecia (male pattern baldness). Sexual dysfunction has been reported in less than 10% of men who take finasteride.
Only 14% patients experienced a worsening of hair loss, while 86% benefited from the treatment over this extended time period and efficacy of the drug was found not to reduce over time for the majority of patients.
In general, you’ll need to wait a few months before you’ll spot any improvements in healthy hair growth or overall hair density from finasteride. Below, we get into how long finasteride takes to work and break down the typical timeline for seeing results after starting finasteride treatment.
In older patients (greater than 70 years of age), the half-life can be prolonged to 8 hours. Finasteride has a markedly shorter half-life than dutasteride, another 5-alpha reductase inhibitor; dutasteride has a half-life of 4 to 5 weeks. Finasteride is eliminated as metabolites, 57% in the feces and 39% in the urine.
Finasteride 1 mg/day significantly increased total hair count compared to placebo after 24 weeks (mean difference = 12.4 hairs/cm 2 , p < .05), and 48 weeks (mean difference = 16.4 hairs/cm 2 , p < .05). The efficacy of the two doses of finasteride (5 mg/day and …
However, further long-term studies would be helpful to better understand finasteride’s effects over the course of a lifetime. Further studies on the reversibility of psychiatric mood symptoms are also needed since the data on the matter is not conclusive.