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How long can a person use 2% ketoconazole shampoo to treat Malassezia on their scalp with hair loss?

(McCloud , Ca )

I’m 45 and live a natural life, organic and naturopathic so when my hair started falling out and my scalp was tender and itchy, I didn’t think it would be possible for me to have fungus on my scalp. But after trying everything natural under the sun for months with little help, I turned to a dermatologist that rx me this shampoo and said to use it every day. I’m on day 43 now and its working, no doubt, less hair falling out and no more tenderness. I’m also treating it on the inside and doing a yeast protocol. How long can I keep using this shampoo? If I skip a day my head starts itching again.

Many thanks and blessings to you!


Comments for How long can a person use 2% ketoconazole shampoo to treat Malassezia on their scalp with hair loss?

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Mar 06, 2022

by: Dan

Hi Jami,

According to this published study by the FDA, "Ketoconazole was not detected in blood plasma in 39 patients who shampooed 4-10 times per week for 6 months, or in 33 patients who shampooed 2-3 times per week for 3-26 months (mean: 16 months)".

So it appears that as long as you are not having any of the common side effects including; itching, skin burning sensations, contact dermatitis, hypersensitivity, alopecia, rash, urticaria, skin irritation, dry skin, and application site reactions; you could use it for a very long time.

However, I strongly suggest you ask your doctor and/or your pharmacist about long term use. Your pharmacist especially is trained in the long term use of prescription drugs and their possible side effects and would be able to give you an answer.

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