My Doctor Said I Only Need to Take Propecia Every Other Day

Hi I have been using Propecia for just over 6 months with no visible benefits so far. I understand that it can take anwhere up to 18 months for you to see results.

The trichologist that I have been seeing and who prescibed the Propecia has told me that the half life is such that I only need to take it every other day. Which is what I’ve been doing for the last 6 months. Is this correct?

Thanks for your site its a great help.

Half life of Propecia is around 4 hours. The half life is the time it takes half of the drug to be out of your blood stream. Let’s do the math…

6am – take Propecia (assume 100% got into your blood stream…)
10am – 50% of Propecia is in your blood stream
2pm – 25% of Propecia is in your blood stream
6pm – 12.5% of Propecia is in your blood stream
10pm -6.25% of Propecia is in your blood stream
2am – 3.125% of Propecia is in your blood stream
6am – (a day later) only 1.5625% of Propecia is in your blood stream

Realistically, all the Propecia is out of your blood stream after 24 hrs. That is why you take Propecia once a day.