Verified
Shedding in the shower noticeably dropped by month three. Density improvement took longer, maybe month seven before my barber commented on it. No sexual side effects for me, but I know it's not the same for everyone.
17 Oct 2026
Propecia
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Delivery
from 4 days
Active ingredient
Finasteride
Propecia is a prescription finasteride tablet for adult men with male pattern hair loss. It is used for androgenetic alopecia affecting the crown and mid-scalp. By lowering scalp DHT, it helps slow follicle miniaturization and support hair preservation.
Description
Propecia contains finasteride, a prescription 5-alpha-reductase type II inhibitor formulated to treat male pattern hair loss by lowering scalp DHT levels. It is intended for adult men with androgenetic alopecia at the crown and mid-scalp. Taken daily, the tablet works to halt follicle miniaturization and support regrowth over several months of continuous use.
Composition
Propecia belongs to a drug class called 5-alpha-reductase inhibitors. Each tablet delivers finasteride, the compound responsible for its effect on hair follicles. The dose is stated on the pack — follow the leaflet. The hair-loss dose is distinct from finasteride tablets used for benign prostatic conditions — the two are not interchangeable, and a higher dose does not mean a better result for hair loss.
Dosage and usage
The dose is stated on the pack — follow the leaflet. Swallow it whole with water.
| Parameter | Detail |
|---|---|
| Dosage | The dose is stated on the pack — follow the leaflet |
| Frequency | Once daily, same time each day |
| Administration | Oral, with or without food |
A few practical points worth knowing before starting:
- Blood levels of finasteride drop within days of stopping, but the visible effect on hair unwinds more slowly, over weeks to months.
- Finasteride can be taken long-term; clinical trials supporting its hair-loss indication followed men for up to five years [2].
- There's no need to cycle on and off — continuous daily use is how the drug was studied and is intended to be used.
Pick one anchor point in your day — brushing your teeth, your morning coffee — and take the tablet right after. Missed doses are almost always a scheduling problem, not a medication problem.
How it works
Finasteride blocks the type II isoenzyme that converts testosterone into dihydrotestosterone (DHT) [1]. DHT is the hormone primarily responsible for shrinking genetically susceptible hair follicles on the scalp. By cutting scalp DHT production, finasteride slows and often stops the progressive thinning that defines male androgenetic alopecia.
Targeted Inhibition of Dihydrotestosterone
Hair follicles affected by DHT go through a process called miniaturization. Each growth cycle produces a thinner, shorter hair until the follicle stops producing visible hair at all. Lowering DHT interrupts this cycle. The follicle isn't destroyed — it's suppressed. That distinction matters, because it explains why finasteride can only protect follicles that are still active, not regenerate ones that have gone fully dormant for years.
Finasteride works best on follicles that are still miniaturizing, not on scalp areas that have been visibly bald for a long time. Earlier treatment generally preserves more.
Indications
It is intended for adult men with androgenetic alopecia at the crown and mid-scalp.
The FDA approved this 1 mg indication for adult men with male pattern hair loss. Sudden or patchy hair loss requires a separate clinical evaluation.
Comparison
Propecia is an oral, single-ingredient prescription treatment that works by suppressing scalp DHT. This differs from topical approaches, which are applied to the scalp, and from combination products that use more than one active ingredient or mechanism.
Contraindications
- Women who are pregnant or who may become pregnant must not take or handle crushed or broken tablets. Finasteride is absorbed through skin and can cause abnormalities in a male fetus's genital development.
- This medication is not for you if you are a woman of childbearing potential, even if hair loss is the concern — finasteride is not approved for female pattern hair loss and carries the same fetal risk through incidental exposure.
- Children and adolescents should not take finasteride; safety and efficacy have not been established in this population.
- Anyone with known hypersensitivity to finasteride or any tablet excipient should not take it.
- Men with significant liver impairment should discuss use with a prescriber, since finasteride is metabolized hepatically.
When this is not for you
Keep tablets in their original coating and out of reach of a partner who is or might become pregnant — intact tablets are coated to prevent skin contact with the active substance.
Side effects
Finasteride's most discussed side effects involve sexual function, and the data on this is specific rather than vague. In the pivotal trials supporting its hair-loss indication, decreased libido occurred in roughly 1.8% of men on finasteride versus 1.3% on placebo, and erectile dysfunction was reported in about 1.3% versus 0.7% . Most men who experienced these effects saw them resolve while continuing treatment; a smaller subset reported symptoms persisting after stopping, which is why some clinicians now ask about baseline sexual function before starting.
Mood-related effects are rarer but documented. Some men report low mood or increased anxiety after starting finasteride, prompting regulatory bodies including the EMA to update product information with warnings about depressive symptoms [3].
There's a practical lab interaction worth flagging: finasteride lowers prostate-specific antigen (PSA) levels by roughly half, even in men with no prostate pathology. Anyone on finasteride who undergoes PSA screening should tell the ordering physician, since the result needs doubling to approximate the untreated baseline — otherwise an early prostate issue could be missed.
Less common reactions include breast tenderness or enlargement, and rare hypersensitivity reactions such as rash or lip swelling. Most men tolerate the tablet without any of these effects at all — the trade-off is real, but it affects a minority of users.
If sexual side effects appear in the first month, they often settle by month three. Give it time before concluding the medication is the cause, but do flag it to a prescriber rather than quietly stopping.
Common mistakes
- Quitting at month two or three because "nothing is happening" — this is before the drug's effect on shedding typically becomes apparent.
- Assuming a missed week needs to be corrected by taking extra tablets, which doesn't speed up the biological process and just adds exposure.
- Not mentioning finasteride use before a PSA test, leading to a confusing lab result that gets misread by whoever orders the screen.
- Combining finasteride with unrelated topical products and attributing any scalp irritation to the tablet itself.
- Stopping abruptly after achieving good results and being surprised months later when thinning resumes.
What doctors say
In clinical practice, physicians tend to frame finasteride as a maintenance therapy rather than a quick fix. The honest conversation at the prescribing stage usually centers on patience: most of the visible benefit shows up after month six, not month one. Doctors monitoring patients long-term typically ask about mood and sexual function at follow-up visits, not because problems are expected in most men, but because early detection makes management easier if they do occur.
Clinicians also tend to flag the PSA interaction proactively, especially for men over 50 who are due for prostate screening, since an unadjusted PSA reading taken while on finasteride can understate risk.
Frequently asked questions
How long does it take for Propecia to show visible results?
Clinical data reviewed by the FDA and referenced in EMA product documentation shows measurable hair count improvements typically appearing around month six, with continued gains tracked through 12 months in long-term trials conducted through 2025 . Earlier than that, the main effect is a slowdown in shedding rather than new growth. Results vary by individual and by the extent of hair loss before starting.
Can Propecia cause permanent sexual side effects?
Most men who experience decreased libido or erectile dysfunction on finasteride find these effects resolve either during continued treatment or shortly after stopping. A smaller group of men have reported persistent symptoms after discontinuation, which is why the EMA updated safety labeling to include post-treatment sexual dysfunction as a recognized, uncommon risk . The EMA product information available in 2024 describes these sexual adverse reactions and advises clinical review. Anyone experiencing new sexual symptoms should discuss them with a prescriber rather than assuming they're unrelated.
Does Propecia work on a receding hairline the same way it works on crown thinning?
Clinical trial data shows finasteride's strongest evidence base is for vertex (crown) and mid-scalp thinning, with somewhat more variable response at the frontal hairline . Men with primarily frontal recession may see a more modest response than those with crown-pattern loss. The FDA Propecia label from 2024 reports study data mainly for vertex and anterior mid-scalp hair loss. This doesn't mean no effect — it means expectations should be calibrated to the pattern involved.
Is it true that Propecia affects PSA test results?
Yes. Finasteride reduces PSA levels by approximately 50% in most men, an effect documented in prescribing information reviewed by MOHAP and supported by broader WHO-referenced pharmacology data on 5-alpha-reductase inhibitors [4]. Anyone scheduled for a prostate screening should inform the ordering clinician that they take finasteride so the result can be interpreted correctly. The FDA label available in 2024 instructs clinicians to account for finasteride-related reductions in PSA values.
What happens if a woman is accidentally exposed to a crushed Propecia tablet?
Finasteride can be absorbed through the skin, and exposure during pregnancy carries a risk of abnormal genital development in a male fetus. Intact, coated tablets pose minimal handling risk, but crushed or broken tablets should never be handled by a woman who is or may become pregnant. If accidental exposure occurs, washing the area thoroughly and contacting a healthcare provider is the appropriate next step. The FDA Propecia labeling available in 2024 gives the same warning about handling crushed or broken tablets during pregnancy.
Can I stop and restart Propecia without problems?
Restarting after a gap is generally safe from a tolerability standpoint, but any hair density gained during the first course is typically lost during the time off, since the protective DHT effect only lasts while the drug is active in the system. Restarting resets the clock on the 3-to-12-month timeline rather than picking up where treatment left off. Continuous daily use is how the drug's hair-loss indication was studied and is intended to be used. The FDA prescribing information available in 2024 describes continuous daily dosing, so any restart after a gap should be discussed with a prescriber.
Do you offer anonymous delivery?
Your order will be securely packed and shipped within 24 hours. This is exactly what your package will look like (images of an actual item sent). It has the size and look of a regular private letter (24x11x0.7 cm) and its contents cannot be seen.
Comparison
Finasteride
Active ingredient: Finasteride
1mg
Propecia Current
Active ingredient: Finasteride
1mg
5mg
Optimal Storage Conditions and Pharmaceutical Handling
Store the tablets at room temperature, generally below 30°C, away from direct sunlight and moisture. Keep them in the original blister pack until the moment of use — this protects both the tablet's stability and anyone handling it from incidental skin contact with the active substance. Keep the box out of reach of children and away from humid environments like bathroom cabinets.
Propecia: Reviews and Experiences
3.9
Based on 4 reviews
Verified
Had some dip in libido around week six. Talked to my doctor, we agreed to keep going another two months before deciding anything, and it actually improved on its own by month three.
23 Oct 2026
Verified
Hairline didn't really change but the crown filled in a bit, which was my main concern anyway. Takes real commitment to stay consistent for over a year before judging it.
27 Sep 2026
Verified
Mild breast tenderness in month two that went away after a few weeks. Otherwise straightforward — one tablet with breakfast, easy to keep up.
7 Oct 2026
Sources
- EMA Summary of Product Characteristics (SmPC) — Finasteride 1 mg.
- FDA Prescribing Information — Finasteride (Propecia) Tablets.
- EMA (2024). Summary of Product Characteristics (SmPC) — Finasteride 1 mg.
- FDA (2014). Propecia (finasteride) tablets: prescribing information.
