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Finasteride 1mg tablets

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Finasteride 1mg tablets are a clinically proven treatment for androgenic alopecia (male pattern baldness) in men. By inhibiting the enzyme 5-alpha reductase, finasteride reduces the conversion of testosterone to dihydrotestosterone (DHT), a key factor in hair loss. This reduction in DHT helps to halt hair follicle miniaturization and promotes hair regrowth and density.

 

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Finasteride 1mg tablets
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Overview

Active ingredients

What is it for?

How does it work?

How do you use it?

Warnings and precautions

Side effects

Drug interactions

FAQs

Download patent leaflet

Written By
Shazlee Ahsan
BSc Pharmacy, Independent Prescriber, PgDip Endocrinology, MSc Endocrinology, PgDip Infectious Diseases

Independent prescriber, Superintendent pharmacist.


Checked By
Dr Sarah Thornton
MbChB, Coaching Academy diploma with distinction

Medical coaching


What are Finasteride 1mg tablets?

Finasteride 1mg Tablets are a clinically proven oral medication used to treat male pattern hair loss, also known as androgenetic alopecia. This condition affects men by causing thinning hair on the scalp, often leading to a receding hairline or balding at the crown. Finasteride works by addressing the hormonal imbalances that contribute to hair loss, helping to prevent further hair thinning and promoting hair regrowth.

Finasteride 1 mg film-coated tablets contain the active substance finasteride, which belongs to a group of medicines called Type II ‘5-alpha reductase inhibitors’.  It works by preventing further hair loss. Men with mild to moderate hair loss can benefit from using finasteride, though it is not intended for those with complete hair loss.

What is the active ingredient in Finasteride 1mg?

The active ingredient is Finasteride 1mg which is a potent Type II 5-alpha reductase inhibitor. It functions by blocking the enzyme responsible for converting testosterone into dihydrotestosterone (DHT). Elevated levels of DHT are linked to hair follicle miniaturization, which is a key factor in male pattern hair loss. By reducing DHT levels, finasteride helps to stop the progression of hair thinning and encourages the growth of new hair.

What is Finasteride 1mg used for?

Finasteride is intended for use in men only and is used to treat male pattern hair loss (androgenetic alopecia). It works by preventing further hair loss. Men with mild to moderate hair loss can benefit from using finasteride, though it is not suitable for those with complete hair loss.

How does Finasteride 1mg work?

Finasteride 1 mg tablets work by targeting the hormonal mechanism responsible for hair loss in men. The active ingredient, finasteride, is a Type II 5-alpha reductase inhibitor, which means it blocks the action of the enzyme 5-alpha reductase. This enzyme is responsible for converting testosterone into dihydrotestosterone (DHT), a hormone that causes hair follicles to shrink and eventually stop producing hair in men with androgenetic alopecia. By reducing the levels of DHT in the scalp, finasteride helps to halt the progression of hair thinning and encourages the regrowth of hair. Clinical studies have shown that finasteride not only prevents further hair loss but also promotes an increase in hair density and thickness, making it an effective treatment for men with mild to moderate hair loss. However, it is important to note that finasteride must be taken continuously to maintain its benefits, as discontinuation can lead to a reversal of its effects and a return to the previous pattern of hair loss.

How Does Hair on Your Head Grow?

On average, your hair grows about 1 centimeter (half an inch) each month. Hair growth originates from hair follicles located beneath your skin. Each scalp hair grows continuously for 2-4 years (the growth phase), followed by a 2-4 month period where it stops growing (the rest phase). After this rest phase, the hair falls out, and a new, healthy hair begins to grow, repeating the cycle. Hairs on your scalp are in different stages of this cycle, so it is normal to lose some scalp hair every day.

What Is Male Pattern Hair Loss?

Male pattern hair loss is a common condition where men experience thinning hair on the scalp, often leading to a receding hairline and/or balding at the top of the head. This condition is believed to be caused by a combination of genetic factors and the hormone dihydrotestosterone (DHT). DHT shortens the growth phase and thins the hair, resulting in male pattern hair loss. These changes can begin in some men as early as their 20s and become more prevalent with age. Long-term hair loss can lead to permanent hair thinning or balding.

How to take Finasteride 1mg tablets?

Take Finasteride 1mg tablets exactly as prescribed by your doctor. The usual dose is one tablet per day, taken with or without food. Swallow the tablet whole with water, without breaking, crushing, or chewing it. Consistency is key, so try to take the tablet at the same time each day. It is important to continue taking Finasteride regularly, even if you do not see immediate results, as it can take several months to notice improvements in hair growth and to prevent further hair loss. Do not stop taking Finasteride without consulting your doctor, as stopping the medication can lead to a reversal of its effects within 12 months. If you miss a dose, take it as soon as you remember, but do not double up on doses to make up for a missed one.

Who should not take finasteride 1mg tablets?

Consult your doctor or pharmacist before taking Finasteride if:
  • You are scheduled for a prostate-specific antigen (PSA) blood test for prostate cancer, as Finasteride can affect the results of this test.

Mood Alterations and Depression

Mood changes, including depression and, less commonly, suicidal thoughts, have been reported in patients using Finasteride. If you experience any of these symptoms, stop taking Finasteride and seek immediate medical advice from your doctor.

Effects on Fertility

Infertility has been reported in men taking Finasteride long-term who also have other risk factors affecting fertility. Some cases have shown improvement in seminal quality after discontinuing Finasteride. Long-term clinical studies on the effects of Finasteride on male fertility have not been conducted.

Children and Adolescents

Finasteride should not be used in children or adolescents under 18 years of age, as there is no data to demonstrate its efficacy or safety in this age group.

Pregnancy, Breast-Feeding, and Fertility

Finasteride is intended solely for the treatment of male pattern hair loss in men.
  • Finasteride should not be taken by women.
  • Women who are pregnant or planning to become pregnant should not touch crushed or broken Finasteride tablets, as whole tablets are coated to prevent contact with the medication during normal use. This is because the medicine may affect the development of the baby's sex organs.
  • If a pregnant woman comes into contact with crushed or broken Finasteride tablets, she should consult a doctor immediately.

Driving and Using Machines

Finasteride is not likely to affect your ability to drive, use tools, or operate machinery.

Finasteride Contains Lactose

If you have been informed by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medication.  

What are the side effects with Finasteride 1mg?

Like all medicines, Finasteride can cause side effects, although not everyone will experience them. Some side effects may be temporary and improve with continued treatment or disappear when treatment is stopped. Stop taking Finasteride and seek immediate medical attention if you experience any of the following:
  • Symptoms of an allergic reaction: swelling of your lips, face, tongue, and throat; difficulty swallowing; hives (lumps under your skin); and breathing difficulties.
  • Depression: feelings of severe sadness and worthlessness.
Report any changes in breast tissue to your doctor promptly, such as lumps, pain, enlargement, or nipple discharge, as these could be signs of a serious condition like breast cancer.

Uncommon Side Effects (may affect up to 1 in 100 people):

  • Inability to have an erection (impotence)
  • Decreased desire for sex
  • Difficulty achieving an erection
  • Ejaculation problems, such as a decrease in the amount of semen released during sex. This decrease does not appear to affect normal sexual function.
If you experience any of these side effects or have any concerns, contact your doctor for further advice.

Side Effects with Unknown Frequency:

  • Breast swelling or tenderness
  • Pain in the testicles
  • Blood in semen
  • Palpitations (feeling your heartbeat)
  • Persistent difficulty having an erection after discontinuation of treatment
  • Persistent decrease in sex drive after discontinuation of treatment
  • Persistent problems with ejaculation after discontinuation of treatment
  • Male infertility and/or poor quality of semen
  • Changes in liver function, which can be detected by a blood test
  • Anxiety
  • Suicidal thoughts
If any of these side effects become serious or if you notice any side effects not listed in this leaflet, please inform your doctor or pharmacist. It will help if you keep a record of what happened, when it started, and how long it lasted.

Does Finasteride 1mg interact with any other medicines?

Do not take Finasteride if you are already taking finasteride or dutasteride, which are medications used to treat a prostate condition called benign prostatic hyperplasia (BPH).
  • Other Finasteride or Dutasteride Medications:Do not take Finasteride 1mg if you are already using other medications containing finasteride or dutasteride, which are used for treating benign prostatic hyperplasia (BPH). Combining these medications can increase the risk of adverse side effects.
 
  • Minoxidil:There is limited information on the combined use of Finasteride 1mg with minoxidil, a topical treatment for male pattern hair loss. Consult your healthcare provider before using both treatments together.
 
  • Blood Thinners and Anti-inflammatory Drugs:If you are taking anticoagulants (blood thinners) such as warfarin, or nonsteroidal anti-inflammatory drugs (NSAIDs), inform your doctor. These medications may interact with finasteride and alter its effects.
 
  • Herbal Supplements:Use caution with herbal supplements, particularly those containing saw palmetto or other ingredients targeting hair loss or prostate health. These may have additive effects or interact with finasteride.
 
  • Hormonal Medications:If you are on hormonal medications, including testosterone replacement therapy, inform your healthcare provider. Finasteride can influence hormonal balance, and combining these treatments may require careful monitoring.
 
  • Liver Enzyme Inducers and Inhibitors:Finasteride is metabolized in the liver, so medications affecting liver enzyme activity (CYP3A4 inducers or inhibitors) can alter the concentration and effectiveness of finasteride. Examples include certain antifungal medications (like ketoconazole), antibiotics (like erythromycin), and anticonvulsants (like carbamazepine).

Finasteride 1mg FAQs

What is Finasteride 1mg used for?

Finasteride 1mg is used to treat male pattern hair loss (androgenetic alopecia) in men. It helps increase hair growth on the scalp and prevent further hair loss.

How does Finasteride 1mg work?

Finasteride 1mg works by inhibiting the enzyme 5-alpha reductase, which converts testosterone into dihydrotestosterone (DHT). Lowering DHT levels helps reduce hair follicle miniaturization and hair loss, promoting hair regrowth.

How long does it take to see results with Finasteride 1mg?

Results can vary, but most men start to notice a decrease in hair loss and potential regrowth after 3 to 6 months of consistent use. Maximum results are typically observed after 12 months.

How should I take Finasteride 1mg tablets?

Take one tablet (1mg) daily, with or without food. It’s important to take Finasteride regularly to maintain its benefits. Skipping doses can reduce its effectiveness.

Can women use Finasteride 1mg for hair loss?

No, Finasteride 1mg is not recommended for use in women, especially those who are pregnant or may become pregnant, due to the risk of birth defects.

What are the common side effects of Finasteride 1mg?

Common side effects may include decreased libido, erectile dysfunction, and decreased volume of ejaculate. These side effects are generally rare and may diminish with continued use.

Can Finasteride 1mg interact with other medications?

Finasteride can interact with other medications, particularly those used to treat benign prostatic hyperplasia (BPH) like dutasteride. Always inform your healthcare provider about all the medications you are taking.

What should I do if I miss a dose of Finasteride 1mg?

If you miss a dose, take it as soon as you remember. If it’s close to the time for your next dose, skip the missed dose and resume your regular schedule. Do not take two doses to make up for a missed one.

Are the effects of Finasteride 1mg permanent?

The effects of Finasteride are not permanent. If you stop taking the medication, any regrown hair is likely to be lost within 12 months, and hair loss may resume.

Is it safe to drink alcohol while taking Finasteride 1mg?

There are no specific known interactions between alcohol and Finasteride. However, it is always best to consult with your healthcare provider regarding alcohol consumption while on medication.

Download patient leaflet

https://www.medicines.org.uk/emc/files/pil.7068.pdf

Checked By
Dr Sarah Thornton
MbChB, Coaching Academy diploma with distinction

Medical coaching


Written By
Shazlee Ahsan
BSc Pharmacy, Independent Prescriber, PgDip Endocrinology, MSc Endocrinology, PgDip Infectious Diseases

Independent prescriber, Superintendent pharmacist.


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