Finasteride Side Effects and the Drug Holiday Technique

Published Mar 26, 2023

Dr. John WattsDoctor-led education
Video + articleNon-Surgical Treatment
BaldnessHair FallFinasterideMinoxidil
Open on YouTube

Is it safe to use Finasteride daily, especially if you are unmarried? And what should you do if Minoxidil starts causing itching, swelling and red marks on your scalp?

In this article based on his Q&A video, Dr. John Watts — dermatologist, trichologist and hair transplant surgeon in Hyderabad with over 2000+ hair transplant surgeries — answers two viewer questions on the side effects of these widely used hair loss medications.

How Finasteride works

A viewer named Veera, who is unmarried, asked whether daily Finasteride tablets would lead to adverse consequences in future.

Dr. Watts explains that the Finasteride tablet works as a DHT blocker to control genetic baldness. “It helps prevent further progression of baldness. You can witness some growth and the existing hair will not fall,” he says.

Rare side effects and the drug holiday technique

Finasteride is known to cause adverse side effects on rare occasions, in very few users. “One's sex drive or libido can get affected, but there is a technique that I always advise my patients to follow while using Finasteride,” explains Dr. Watts.

His advice: adopt a 'drug holiday' on the weekend — skipping the drug helps reduce its accumulation in the body. If you do not experience any impact on libido while following this technique, you can continue Finasteride regularly.

And if side effects still appear? Stop Finasteride immediately, says Dr. Watts — one should value personal life more than having hair on the scalp.

Itching and swelling from Minoxidil: three causes to check

Another viewer, Krishna Phanindra, had used topical Minoxidil for two months with good initial results — but then developed itching, swelling on the scalp and forehead, and reddish marks. Switching brands did not help.

Dr. Watts suggests looking at three possible angles. “Firstly, there is a chance that you have a fungal infection on the scalp. Secondly, the drug's expiry date needs to be checked. Thirdly, it could be the alcohol content in the Minoxidil which may be triggering adverse side effects on your skin,” he informs.

Alternatives if Minoxidil doesn't suit you

If the alcohol content is the culprit, Dr. Watts recommends switching to aqueous-based Minoxidil formulations. “In case even this also fails and the symptoms continue, one must opt for Redensyl or Procapyl based formulations,” he advises.

The bottom line

Finasteride is effective against genetic baldness, and its rare libido-related side effects can often be managed with a weekend drug holiday — but never hesitate to stop it if symptoms persist. For Minoxidil irritation, check for fungal infection, expiry and alcohol content before abandoning treatment; aqueous, Redensyl or Procapyl formulations offer alternatives.

This article is for educational purposes only and is not a substitute for professional medical advice. Consult a qualified dermatologist for diagnosis and treatment.

Frequently asked questions

What does Finasteride do for hair loss?

Finasteride works as a DHT blocker to control genetic baldness. It prevents further progression of baldness, protects existing hair and can produce some growth.

What is the drug holiday technique for Finasteride?

Dr. Watts advises skipping Finasteride on the weekend to reduce drug accumulation in the body. If libido is unaffected with this routine, the medicine can be continued; if side effects persist, it should be stopped.

Why is Minoxidil causing itching and red marks on my scalp?

Three possible causes: a fungal infection on the scalp, an expired product, or the alcohol content in the Minoxidil formulation irritating the skin.

What are alternatives if Minoxidil irritates my skin?

Switch to aqueous-based Minoxidil formulations first. If symptoms continue, Redensyl or Procapyl based formulations can be used instead.

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