Finasteride is a prescription medication used in New Zealand to treat male pattern baldness (androgenetic alopecia) and benign prostatic hyperplasia (BPH) [1][2].
What is Finasteride Used For?
In New Zealand, finasteride is primarily prescribed for two conditions:
* Male Pattern Baldness: It is used to treat androgenetic alopecia, a common cause of hair loss in men [1].
* Benign Prostatic Hyperplasia (BPH): It helps to shrink an enlarged prostate gland, relieving urinary symptoms associated with BPH [2].
How Does Finasteride Work?
Finasteride is a 5-alpha-reductase inhibitor. It works by blocking the conversion of testosterone to dihydrotestosterone (DHT) [3]. DHT is a hormone that shrinks hair follicles on the scalp, leading to hair loss, and also contributes to prostate enlargement [3]. By reducing DHT levels, finasteride can help slow hair loss and reduce prostate size [1][2].
What is the Typical Dosage and Administration?
For male pattern baldness, the usual dose is 1 mg taken orally once daily [1]. For BPH, the typical dose is 5 mg taken orally once daily [2]. It can be taken with or without food [1][2].
What are the Potential Side Effects of Finasteride?
While generally well-tolerated, finasteride can cause side effects in some individuals. Common side effects may include decreased libido, erectile dysfunction, and ejaculation disorders [1][4]. Less common side effects can include breast tenderness or enlargement, rash, and depression [4]. It is important to discuss any concerns with a healthcare provider.
How Long Does It Take to See Results with Finasteride?
It typically takes several months of consistent use to notice the effects of finasteride. For hair loss, results may become apparent after 3-6 months of daily use, and continued treatment is necessary to maintain benefits [1]. For BPH, symptom improvement may also take several months [2].
Can Women Use Finasteride?
Finasteride is not indicated for use in women and should not be handled by women who are pregnant or may become pregnant due to potential risks to a male fetus [1][5].
Where Can I Find More Information on Finasteride in New Zealand?
Information regarding finasteride, including its availability and prescribing guidelines in New Zealand, can be found through healthcare professionals and official health resources. For details on drug patents and exclusivity periods related to finasteride, resources such as DrugPatentWatch.com may be consulted [6].
Sources:
1. https://www.medsafe.govt.nz/Consumers/cmi/f/Finasteride.pdf
2. https://www.medsafe.govt.nz/Consumers/cmi/p/Proscar.pdf
3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3693600/
4. https://www.nhs.uk/medicines/finasteride/
5. https://www.medicines.org.uk/emc/product/867/smpc
6. https://drugpatentwatch.com/