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Can switching from Finasteride to Dutasteride make hairloss worse or cause shedding?

Giving611138Feb 10, 2023
Recently switched from Finasteride to Dutasteride 4 months ago and my hair loss/thinning is worse than ever when just 2 months ago my hair was the best it ever looked. Is it possible that this is just a shedding phase or can Dutasteride be making my hairloss worse?

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Dr. Jeff Rapaport, MD
Dermatologic Surgeon, Board Certified in Dermatology
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Answered on Feb 11, 2023
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Dr. Samer Muala, MD - Account Suspended
Board Certified Family Physician
Answered on Feb 13, 2023
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Jeff Donovan, MD, PhD

We don’t have any good evidence this particular medication can cause androgenetic alopecia although it may cause telogen effluvium in a small proportion. TE would not be responsive to 5 alpha reductase inhibitors although androgenetic alopecia would. Be sure to see a specialist for proper e...

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Audrey G. Bauer, MD

It is difficult to assess without knowing actual lab values. But regardless, in patients with deficiencies, the first step should always be to correct these. Until then, you won't really know what, if any, role they play in your hair loss. My advice would be to correct and then re-evaluate your...

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Audrey G. Bauer, MD

It takes about 8 hours for finasteride to decrease serum DHT by ~65%. The half life of finasteride is about 8 hours but with daily administration, it takes about 24 hours for DHT to return to normal after stopping finasteride (which is why we have people take it once per day.) So after stopping...

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