What is Finasteride 1mg?

Finasteride 1mg is a prescription medication used to treat male pattern baldness (androgenetic alopecia). It works by reducing levels of dihydrotestosterone (DHT), an androgen hormone formed when testosterone is converted by the enzyme 5-alpha-reductase. DHT can shrink hair follicles, making them produce finer hair until they stop growing altogether. By lowering DHT, Finasteride helps prevent further hair loss and may encourage regrowth in some men.

This treatment is intended for men only. Women and children should not use Finasteride 1mg, and it is particularly unsafe in pregnancy due to the risk of birth defects.

Finasteride comes as a tablet and is typically taken once a day. Noticeable results usually appear after 3–6 months of consistent use, with maximum benefit seen after 1–2 years.

What is Finasteride 1mg Used For?

Treatment of Male Pattern Baldness
Finasteride is prescribed to slow down hair loss and, in many men, stimulate regrowth in thinning areas such as the crown or hairline.

Hair Regrowth
Some men experience regrowth in thinning areas, leading to thicker and denser hair over time.

Preventing Further Hair Loss
Finasteride is highly effective at preserving existing hair and reducing progression of baldness.

Long-term Maintenance
Results last only while the medication is taken. If stopped, hair loss typically resumes within 6–12 months.

How Does Finasteride 1mg Work?

Finasteride blocks the type II 5-alpha-reductase enzyme, reducing DHT levels in the scalp and bloodstream. Lower DHT helps protect hair follicles from shrinking and allows some to recover.

Key mechanisms:

Reduction of DHT – Blocks 5-alpha-reductase, lowering scalp DHT.
Prevention of follicle shrinkage – Follicles maintain size and produce stronger hairs.
Promotion of hair growth – Dormant follicles may resume producing thicker hair.

Clinical evidence:

Around 85–90% of men experience either no further hair loss or some regrowth with continuous use.
Most regrowth occurs in the first 1–2 years, though improvements can continue for up to 5 years.
Stopping Finasteride usually causes hair loss to restart within 6–12 months.
Example study outcomes (after 5 years):

Finasteride: ~90% of men maintained or improved hair, 63% reported satisfaction.
Placebo: ~25% maintained hair, 20% reported satisfaction.

When to Consider Finasteride 1mg for Hair Loss

Finasteride is most effective in the early to moderate stages of male pattern hair loss. It may slow further thinning in more advanced cases but is less likely to restore heavily bald areas.

Who Should Take Finasteride 1mg?

Men with male pattern baldness – Especially those noticing thinning at the crown or receding hairline.
Men wanting to preserve existing hair – Helps maintain density.
Men committed to long-term treatment – Works best with consistent daily use.
Who Should Not Take Finasteride 1mg?

Women – Not approved for female use; dangerous in pregnancy.
Children or under-18s – Not suitable.
Men with liver problems – Finasteride is metabolised in the liver; use only under medical supervision.

Possible Side Effects

While generally well tolerated, some men experience:

Reduced libido or erectile dysfunction
Decreased semen volume
Breast tenderness or enlargement (rare)
Low mood or anxiety (rare, under review)
These side effects are uncommon and often resolve after stopping treatment. Always discuss concerns with a healthcare provider.

Can You Buy Finasteride 1mg Over the Counter?

In the UK, Finasteride 1mg is available by prescription only. You cannot buy it over the counter. A prescription ensures the treatment is safe and suitable for you. Many regulated online providers offer confidential consultations, but medication should always come from a licensed pharmacy to avoid counterfeit products.

Alternative Treatments

Minoxidil
Available over the counter as a topical solution or foam. Can slow hair loss and promote regrowth in some men. Works best when combined with Finasteride.

Dutasteride
Blocks both type I and type II 5-alpha-reductase, lowering DHT more strongly than Finasteride. Licensed for prostate enlargement, but sometimes prescribed off-label for hair loss. May be more effective, but can carry a higher risk of side effects.

Supplements and natural products
Options such as saw palmetto or biotin are sometimes used. Evidence is limited, and they should not be considered proven alternatives.

How to Take Finasteride 1mg

To use Finasteride 1mg properly and achieve the best results, follow these directions carefully:

Dosage

The recommended dose of Finasteride for hair loss is 1mg per day. Taking the medication at the same time every day can help you remember and maintain a consistent routine, which is crucial for the effectiveness of the treatment.

With or Without Food

Finasteride can be taken with or without food. The medication is absorbed in the body in the same way regardless of meals, so there’s no need to worry about food interactions. Whether you prefer to take it with a meal or on an empty stomach, it will work just as effectively.

Consistency

Consistency is key when using Finasteride. Skipping doses can reduce its effectiveness, so it’s important to make it a daily habit. If you forget to take a dose, take it as soon as you remember. However, never double up on doses to make up for a missed one. Just continue with your regular schedule the following day.

Dosage & Usage

Recommended dose: One 1mg tablet daily, with or without food.

Do not alter tablets: Do not attempt to cut or crush Finasteride tablets. This can affect dosing accuracy and, if handled by women (especially during pregnancy), may pose a safety risk.

Missed a dose? Skip it and take your next scheduled tablet. Do not double the dose.

Finasteride – The main ingredient that works by blocking the enzyme 5-alpha-reductase, which converts testosterone into dihydrotestosterone (DHT). DHT is the key hormone responsible for shrinking hair follicles and causing male pattern hair loss.

Inactive Ingredients

Lactose Monohydrate – Used as a filler to bind the tablet.
Microcrystalline Cellulose – A bulking agent that gives the tablet structure and texture.
Sodium Starch Glycolate – Helps the tablet break down and dissolve properly in the body.
Magnesium Stearate – A lubricant that prevents the tablet from sticking during manufacturing.

Note

Inactive ingredients may vary depending on the manufacturer. Always check the packaging or patient leaflet for the most accurate and up-to-date information.

Suitability

Because Finasteride tablets may contain lactose, individuals with lactose intolerance should consult their doctor or pharmacist before use. Always confirm suitability with a healthcare professional before starting treatment.

Always check the patient information leaflet (PIL) in your pack for the full ingredient list — especially if you have allergies or sensitivities.

These side effects are generally mild and may not occur in everyone:

Decreased libido: Reduced sexual desire.
Erectile dysfunction: Difficulty achieving or maintaining an erection.
Breast tenderness or enlargement: Discomfort or swelling in breast tissue.
Depression (rare): Mood changes or depressive symptoms.
Dizziness or lightheadedness: Feeling faint or unsteady.
Rash or skin reactions: Skin rashes or allergic reactions.
Decreased semen volume: Reduced semen during ejaculation.
Allergic reactions (hives, swelling): Rare swelling in the face, lips, or throat.

Serious Side Effects

Though rare, these serious side effects should be reported to a healthcare provider immediately:

Rare reports of persistent erectile dysfunction, even after stopping the medication.
Unusual growth in breasts (gynecomastia): Breast enlargement or tenderness.
Signs of an allergic reaction: Swelling in the face, lips, or difficulty breathing may require immediate attention.
Breast lumps: Very rare reports of male breast cancer.
Consult your healthcare provider if you experience any side effects to determine if continuing the medication is suitable.

Finasteride 1mg and Pregnancy

Finasteride should not be used by women, particularly those who are pregnant or planning to become pregnant, as it may cause birth defects, particularly affecting the development of male genitalia. Pregnant women should avoid handling crushed or broken tablets.

Warnings & Contraindications

Finasteride may not be suitable for everyone.

Avoid this medication if you:

• Are allergic to Finasteride or any of its ingredients.
• Are female — Finasteride is ineffective for women and may be harmful, especially during pregnancy.
• Are under 18 years old.
  
  

Consult your doctor before use if you:

• Are undergoing hormone treatments (e.g., gender transition).
• Are being screened for prostate conditions or have benign prostate issues.
• Are experiencing fertility problems — Finasteride may reduce semen volume in some men, but this usually improves after stopping treatment.
• Have a pregnant partner or are trying to conceive.