How long does finasteride lower DHT for after stopping the drug?

jd_uk

Senior Member
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I have read various things about this haven't made sense to me. If someone takes propecia for say 2 years and then stops - how long would their DHT be lowered for? I have read that because finasteride has a long half life, it could suppress DHT for quite some time after stopping?
 

benjt

Experienced Member
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A single dose lowers DHT significantly for 4 days (and a little bit for another 2 days, until production has caught up completely again). After continued use over several months, DHT should be back to normal after 2 weeks.
 

jd_uk

Senior Member
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A single dose lowers DHT significantly for 4 days (and a little bit for another 2 days, until production has caught up completely again). After continued use over several months, DHT should be back to normal after 2 weeks.


Thanks. Do you have a source for this?
 
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