View Full Version : Finasteride half life

07-31-2015, 12:22 AM
I have read that fin has 8 hours half life. Does it mean that if I cut proscar for 4 pieces the second piece will have 0.15 (1.25/2^3) mg fin in it?
If that is true 3rd and 4th pieces are totally useless.

What do you think?

07-31-2015, 01:21 AM
With half life is meant the half life of finasteride when it's in your blood, not when it's exposed to air or whatever (I guess that's what you meant).

08-17-2015, 07:09 AM
Yes, Illusion is right. Half-life refers to the period of the drug elimination from the blood stream.

08-17-2015, 01:07 PM
I usually pre-cut about 10 pills and put them in a prescription bottle, that's 40 days worth and they seem to be fine. The sizes are all different and that doesn't seem to matter either.

Rashid Rashid, MD, PhD
08-17-2015, 07:16 PM
In pharmacology, as mentioned above, half life is often a measure of how long it takes the body to get ride of half of it. It is also used a term used in figuring how long it will take to get to the needed concentration in the blood stream.