Doctor’s Note: Your Essential Guide to Oral Minoxidil

As dermatologists, we understand that hair loss can be frustrating and sometimes distressing. Oral minoxidil, an option that’s growing in popularity, offers a new way to manage hair loss effectively. Here, we’ll cover everything you need to know about oral minoxidil—from how it works to potential side effects and what to expect.


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What is Oral Minoxidil?

Oral minoxidil is a medication that was originally developed to treat high blood pressure but has since been found to be effective for hair regrowth. Unlike topical minoxidil (like Rogaine), which is applied directly to the scalp, oral minoxidil is taken as a pill. This treatment has become increasingly popular for patients who want a convenient, once-daily solution for hair loss.

How Does Oral Minoxidil Work?

Oral minoxidil works by widening blood vessels, which increases blood flow to hair follicles. This improved circulation helps to nourish the hair follicles, encouraging hair growth and strengthening existing hair. In addition to promoting thicker and healthier hair, oral minoxidil can also reduce hair shedding over time.

Women's Rogaine Before and After

Who Can Benefit from Oral Minoxidil?

Oral minoxidil can be helpful for individuals experiencing various types of hair loss, including:

Female Pattern Hair Loss

Male and Female Pattern Hair Loss

Commonly known as androgenetic alopecia, this form of hair loss affects both men and women.

Stress

Telogen Effluvium

A temporary hair loss often triggered by stress, illness, or hormonal changes.

Alopecia Areata

Alopecia Areata

An autoimmune condition where the immune system attacks hair follicles, leading to patches of hair loss.

Oral Minoxidil vs. Topical Minoxidil

Both oral and topical minoxidil help with hair growth, but they have some key differences:

  • Convenience: Oral minoxidil is taken as a daily pill, whereas topical minoxidil must be applied to the scalp.

  • Absorption: Oral minoxidil is absorbed throughout the body, while topical minoxidil works directly where it’s applied.

  • Effectiveness: Some patients find that oral minoxidil works better for them, especially if they had limited success with the topical version.

  • Side Effects: Oral minoxidil may have different side effects compared to the topical form, such as swelling, dizziness, or an increased heart rate.

Oral Minoxidil vs. Topical Minoxidil

How Much Oral Minoxidil Should You Take Daily?

Oral minoxidil is usually prescribed in low doses for hair loss, generally ranging from 0.25 mg to 2.5 mg per day. The specific dosage will depend on individual factors like the severity of hair loss, overall health, and how well the patient tolerates the medication.

Important Note: Always follow your dermatologist’s instructions on dosage. Do not adjust your dose without consulting your doctor.

How Long Does it Take to See Results?

Oral minoxidil takes time to show visible results. Most people start noticing changes in hair thickness and density after 3 to 6 months of consistent use. For full results, it can take up to 12 months or longer. Patience is key, as hair growth is a slow process.

Calendar

Side Effects of Oral Minoxidil

While oral minoxidil can be effective, it’s essential to be aware of possible side effects. These can vary from person to person but may include:

  • Swelling: Fluid retention can cause swelling, especially in the feet and ankles.

  • Increased Heart Rate: Some people experience a higher heart rate, so monitoring is essential.

  • Dizziness: Low blood pressure from the medication can cause dizziness in some users.

  • Unwanted Hair Growth: In rare cases, oral minoxidil can cause hair growth in areas like the face or body.

If you experience any of these side effects, consult your dermatologist. They may adjust your dose or suggest alternative treatments.

Oral Minoxidil and Shedding

It’s normal to experience a temporary increase in hair shedding when starting oral minoxidil. This phase, known as the “shedding phase,” happens as old hairs fall out to make way for new growth. While this can be unsettling, it’s a typical part of the process, and hair growth should soon improve.

Hair Shedding

Can I Combine Oral Minoxidil with Other Hair Loss Treatments?

Yes, oral minoxidil can often be combined with other treatments for hair loss. Some common combinations include:

What Is Rogaine

Rogaine

Some dermatologists may prescribe medications or topical treatments to use with Rogaine, especially for women with hormonal hair loss.

Pill Bottle

Finasteride

Some dermatologists may prescribe medications or topical treatments to use with Rogaine, especially for women with hormonal hair loss.

iRestore Professional Laser Red Light Therapy for Hair Growth System.jpg

Laser Light

Laser therapy devices, like combs or helmets, can be used along with Rogaine to stimulate hair growth.

PRP

Platelet-Rich Plasma (PRP)

PRP is a treatment where a small amount of your blood is taken, processed, and injected into areas with thinning hair. This stimulates hair follicles, leading to thicker hair.

Oral Minoxidil FAQs

Does oral minoxidil work?
Yes, oral minoxidil has been shown to effectively promote hair regrowth in individuals with androgenetic alopecia (pattern hair loss). It is often used as an alternative for those who cannot tolerate topical minoxidil.

How much oral minoxidil should you take daily?
The dosage of oral minoxidil varies but typically ranges from 0.25 mg to 2.5 mg daily, depending on your doctor’s recommendation. Always follow your healthcare provider’s guidance.

Will oral minoxidil make hair fall out?
Oral minoxidil may cause temporary hair shedding (known as "shedding phase") during the first few months of use as new hairs push out older ones. This is a normal part of the growth cycle.

Is oral minoxidil better than topical?
Oral minoxidil may be more effective for some individuals, especially if topical treatments cause irritation or are not effective. However, oral minoxidil carries a higher risk of systemic side effects and requires medical supervision.

Does oral minoxidil cause weight gain?
Weight gain is not a common side effect of oral minoxidil. However, in rare cases, it may cause fluid retention, leading to temporary bloating or weight fluctuation.

How long does oral minoxidil take to work?
Oral minoxidil typically takes 3-6 months to show noticeable improvements in hair growth. Full results may take up to 12 months with consistent use.

Will oral minoxidil grow a beard?
Yes, oral minoxidil may promote beard growth by stimulating hair follicles. However, its effectiveness varies and is not specifically approved for beard enhancement.

Is oral or topical minoxidil better?
Both forms are effective, but the choice depends on individual tolerance and preference. Oral minoxidil may provide more systemic results, while topical minoxidil focuses on localized application.

How to get oral minoxidil?
Oral minoxidil requires a prescription. Consult a dermatologist or healthcare provider to determine if it is suitable for your hair loss concerns.