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Minoksydyl 5 na brodę - Skuteczność, Bezpieczeństwo i Porady
Who Can Use Rogaine?
Rogaine is FDA-approved for hair loss in adults. Specific products are designed for males versus females based on the studies conducted to establish the medication’s safety and effectiveness.
Rogaine can be a safe and effective treatment for hair loss, but it isn’t right for everyone. According to the product labeling, you should not use Rogaine if:
- You have no family history of hair loss.
- You have sudden, unexplained, or patchy hair loss.
- You are under the age of 18.
- You have hair loss that occurs in association with giving birth.
- You have skin problems at the intended application site, such as scalp irritation, infection, or pain.
- You apply other medications to your scalp.
Mechanism of Action
Stimulation of the microcirculation around the hair follicles induces arteriolar vasodilation, thereby encouraging conditions conducive to hair growth.
Induction of the vascular endothelial growth factor expression leads to heightened vascularization around the hair follicles, thereby promoting hair growth.
Activation of the prostaglandin-endoperoxide synthase-1 enzyme leads to the enhancement of hair growth.
Inhibition of androgen-related effects on androgen-sensitive hair follicles.Direct stimulation of the hair follicles as the drug acts as an epidermal growth factor on the matrix cells, slowing their aging process and extending their anagen phase. This process is achieved through the activation of the beta-catenin pathway.
Display of antifibrotic characteristics due to its impact on collagen synthesis.Hypertension
Pharmacokinetics
Absorption: Minoxidil is absorbed from the gastrointestinal tract at a rate of 95%, and the drug achieves peak levels within the initial hour. Conversely, only 1.4% of topical minoxidil is absorbed through the skin.[7]
Distribution: Minoxidil shows no binding affinity to plasma proteins. This drug experiences broad distribution, with a distribution volume ranging from 2.8 to 3.3 L/kg.
Metabolism: Minoxidil undergoes metabolism through conjugation, sulfation, and hydroxylation processes. The resulting metabolites generally exhibit lower pharmacological activity than the parent drug. Notably, as previously mentioned, topical minoxidil is metabolized within the hair follicles by the sulfotransferase enzyme, leading to the formation of minoxidil sulfate.[11]
Elimination: Although the elimination half-life of minoxidil is around 3 to 4 hours, the hypotensive impact of the medication may persist for up to 72 hours. Notably, the excretion of minoxidil and its metabolites predominantly occurs through the kidneys.[12]
For women:
Minoxidil can be used in the same way as for men, please see above. The difference is that the solution will contain a lower percentage of Minoxidil compared to the men’s product.
Other treatments for hair loss
Propecia (finasteride) for men is an oral alternative used to treat male pattern baldness. It is a tablet available on prescription only. Propecia may improve hair growth within a few months. Propecia is not suitable for use by women.
Nourkrin is an alternative treatment to Minoxidil for women. It is a ‘natural’ hair supplement in tablet form, also available as a shampoo and lotion. It is a food supplement containing a marine protein extract which is promoted as supplying your body with the nutrients needed to promote hair growth.