How does Oral Minoxidil work? Sons’ Guide to results, side effects, and more

How does Oral Minoxidil work? Sons’ Guide to results, side effects, and more
24 February 2024
2-minute read

Minoxidil is one of the most trusted treatments for male pattern hair loss—and it’s available in two forms: topical and oral. If you’re considering oral Minoxidil but aren’t sure if it’s the right choice for you, this guide covers everything you need to know, from how it works to when you can expect to see results.

What Is Oral Minoxidil?

Minoxidil is a vasodilator, meaning it works by increasing blood flow and oxygen to areas affected by hair loss. When taken as an oral tablet, Minoxidil helps deliver essential nutrients to hair follicles via the bloodstream, stimulating new growth and supporting the health of existing hair.

While topical Minoxidil is the more widely licensed form for hair loss, oral Minoxidil provides an effective alternative—particularly for those who experience irritation from applying it to the scalp or prefer the convenience of a daily tablet.

Explore our Oral Minoxidil treatment to find out more.

How Does Oral Minoxidil Work?

When taken orally, Minoxidil is absorbed into the bloodstream rather than through the skin. At a daily dose of 2.5mg, it has been shown to improve hair growth in men with androgenetic alopecia (male pattern baldness). Once in your system, the medication remains active for around 3 to 4 hours.

This systemic approach allows Minoxidil to target multiple areas of the scalp, promoting regrowth and helping to revive dormant follicles that may have been weakened by DHT—the hormone linked to male hair loss.

How Long Does It Take to See Results?

Patience is essential. Although oral Minoxidil starts working immediately, visible results typically take 4 to 6 months of consistent use to appear. This is because hair grows slowly—about 1cm per month—and the treatment works by encouraging follicles to enter the growth phase of the hair cycle.

For the best results, it’s important to take oral Minoxidil daily and stick to your prescribed routine without missing doses.

Is Shedding Normal with Oral Minoxidil?

Yes, and it’s nothing to be concerned about. Like its topical counterpart, oral Minoxidil can cause initial shedding as it speeds up the hair cycle. This happens when the treatment pushes hairs out of the resting (telogen) phase and into the shedding (exogen) phase, making way for new, stronger hair to grow.

This shedding phase is temporary and usually occurs within the first couple of months. Think of it as a sign that the treatment is working.

Should You Combine Oral and Topical Minoxidil?

While both forms of Minoxidil are effective, using oral and topical Minoxidil together isn’t recommended. Doubling up won’t enhance the benefits and may increase the risk of side effects.

Instead, we suggest pairing oral Minoxidil with oral Finasteride, which works by reducing DHT production. This combination tackles hair loss from two angles—stimulating growth while protecting follicles from hormonal damage.

Sons’ Ultimate Plan includes both treatments, offering a comprehensive solution designed for long-term results.

Final Thoughts

Oral Minoxidil is a powerful option for men dealing with male pattern hair loss—especially if you prefer tablets over topicals or struggle with scalp irritation. With consistent use and the right combination plan, you can restore thickness, reduce shedding, and support long-term hair health.

Not sure where to begin? Take our free online consultation to get matched with a personalised hair loss treatment plan, delivered discreetly to your door.




All of our blog articles are reviewed by our Medical Director before publication.