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Propecia
Propecia (generic name: finasteride) is a prescription medication used to treat male pattern hair loss (androgenetic alopecia). It works by inhibiting the enzyme 5-alpha-reductase, which converts testosterone to dihydrotestosterone (DHT), the hormone responsible for shrinking hair follicles. Propecia is used to increase hair growth and slow hair loss in men but is not approved for use in women.
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Frequently Asked Questions
How long does it take for Propecia to work?
It may take 3 to 6 months of daily use before you see any improvement in hair growth. Full results may take up to a year.
Can women use Propecia?
No, Propecia is not approved for use in women, especially those who are pregnant or may become pregnant, due to the risk of birth defects
What should I do if I miss a dose?
If you miss a dose, take it as soon as you remember. If it is close to the time for your next dose, skip the missed dose and continue with your regular schedule. Do not double up on doses.
Can Propecia cause sexual side effects?
Yes, some men may experience decreased libido, erectile dysfunction, or reduced ejaculate volume. These side effects may persist even after stopping the medication.
Will hair loss return if I stop using Propecia?
Yes, if you stop using Propecia, any hair regrowth achieved during treatment will be lost within 12 months, and hair loss will resume.
Comprehensive Drug Guide
How Does Propecia Work?
Propecia works by inhibiting the enzyme 5-alpha-reductase, which is responsible for converting testosterone into dihydrotestosterone (DHT). By reducing DHT levels, Propecia helps to prevent hair follicle shrinkage and hair loss, particularly on the scalp.
Common Dosages
- Tablets: 1 mg
Typical Dosing
- The usual dose for treating male pattern hair loss is 1 mg once daily.
- It may take 3 months or more of consistent use before noticeable hair growth occurs, and continued use is necessary to maintain the benefits.
Typical Dosing
FDA Approved Indications
- Male pattern hair loss (androgenetic alopecia) in men.
Who Shouldn't Take Propecia?
- Women, especially during pregnancy, as it may cause birth defects.
- Individuals with known hypersensitivity to finasteride or any component of the formulation.
Advice From The Pharmacist
- Take Propecia at the same time each day, with or without food.
- Do not crush or break the tablets, especially if you are handling them for someone who is pregnant, as the active ingredient can be absorbed through the skin and may harm a developing fetus.
- Hair regrowth can take 3 months or more, and if treatment is stopped, hair loss will resume within 12 months.
- Inform your healthcare provider of any persistent side effects, including changes in libido or mood.
Side Effects of Propecia
Common Side Effects
- Decreased libido
- Erectile dysfunction
- Decreased ejaculate volume
- Depression
Uncommon/Severe Side Effects
- Male breast cancer
- Swelling of the lips, tongue, or throat
- Severe allergic reactions
Risks and Warnings of Propecia
- Pregnancy Risk: Women who are pregnant or may become pregnant should not handle crushed or broken tablets of Propecia, as it may cause birth defects.
- Sexual Side Effects: Some men may experience persistent sexual side effects, such as reduced libido and erectile dysfunction, even after stopping the medication.
- Breast Cancer Risk: Rare cases of male breast cancer have been reported in men taking finasteride.
Interactions with Propecia
Common Drug Interactions
- Other 5-alpha-reductase inhibitors: Using multiple drugs in this class can increase the risk of side effects.
- Herbal supplements like saw palmetto, which may interfere with the drug’s action.
Alternatives to Propecia
- Minoxidil (Rogaine®): A topical treatment for hair loss that stimulates hair growth and can be used in both men and women.
- Hair transplant surgery: A permanent solution for hair loss.
- Dutasteride (Avodart®): Another 5-alpha-reductase inhibitor used to treat hair loss and benign prostatic hyperplasia (BPH).
