Quote from: SorchaC on November 26, 2015, 03:42:45 PM
I'm no medical practitioner so please don't shout if this is slightly out but an endo told me that estrogen pills are only active for about 6 hours once taken so if you have more than 1 pill to take splitting them u makes sense for a better spread of effectiveness
Hugs
Sorcha 
It's what is called "the half life." Every chemical has one. A chemical is said to be most effective up to a point of it's half life. From that point on, it's effectiveness degenerates. Some quickly, some slowly.
Cotinine is an active metabolite of nicotine that remains in the blood for 18–20 hours, thus it has a half life of 9-10 hours. Other chemicals have much longer half life, therefore producing a compounding effect, which may be good or conversely may be bad. Taking the Cotinine case, if one was to smoke one cigarette per hour over an 18 hour day, it's not rocket science to work out smoking will have a compounding effect that may not be good for your health.
Similarity, thanking this Oestrogen case with a half life of 6 hours, you can see the body would be see-sawing between just enough to maintain function to deprivation. This oscillating supply may not be conducive to good overall health.
Thus, it could be wise to say, that for any medication, good or bad you're on, it is to your advantage to know it's half life. Any Pharmacist worth their trade, should know the respective values.
Speak to as soon as I finish de licking the kids hair.
Huggs
Catherine