5-alpha reductase inhibitor (hormone blocker for prostate and hair loss)
Last reviewed June 2026
Who is this for?
Finasteride is a drug that works by blocking the conversion of the male hormone testosterone into a stronger form called DHT, which is responsible for prostate enlargement and hair loss in men.
Inhibits 5-alpha reductase enzyme, preventing the conversion of testosterone to dihydrotestosterone (DHT), thereby reducing prostate volume and stimulating hair growth in androgenetic alopecia.
Prescription Required
You need a doctor's prescription to buy this drug.
Explore this drug
For enlarged prostate, take one 5 mg tablet once a day. For hair loss, take one 1 mg tablet once a day. You can take it with or without food. Swallow the tablet whole — do not crush or break it. You may need to take it for several months before you notice full results, so be patient and consistent.
If you miss a dose, skip it and take your next dose at the regular time. Do not take two tablets to make up for the missed one.
Only buy finasteride from reputable pharmacies — products like Finstrate Tablet or Finasteride Tablets USP 5 mg should come in proper sealed packaging. Do not share this medication with anyone, especially women and children. Be aware that this drug can affect PSA blood test results used to screen for prostate cancer, so always tell your doctor you are taking finasteride before any prostate tests.
Finasteride does not have many major drug interactions, but always tell your doctor about all medicines you are taking including herbal supplements. Alcohol does not directly interact with finasteride, but heavy drinking can worsen sexual side effects. If you are taking other prostate medications like tamsulosin (Flomax), let your doctor know as they may be used together but need monitoring.
Check your specific combination
Is it safe to take Finasteride with your other drugs?
Finasteride is strictly NOT safe for women who are pregnant or may become pregnant — even touching a broken tablet can cause serious birth defects in a male baby. Breastfeeding women should also avoid any contact with this drug.
Store at room temperature away from direct sunlight and heat — avoid storing near windows or in hot cars. Keep it in a dry place away from moisture, and always keep it out of the reach of children. Women and children should not even handle broken or crushed tablets.
For information only — not medical advice. Always talk to a doctor or pharmacist before changing your medication.
Names this drug is sold under — especially in Nigerian and West African pharmacies
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Counterfeit Drug Warning
Fake drugs are a serious problem in Nigeria. Always buy from a registered pharmacy. If the packaging looks different from what is described above, do not use it.
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