After much research, I understand Alprazolam's (Xanax) half life is approximately 11 hours, correct? So, as an example, if a person took a 1 mg dose of xanax, it would be down to .5 milligrams in their system after the approximate 11 hours?
I know there are a lot of other factors too, such as age, weight, metabolism, etc., but can anyone help me understand how you would figure up approximately how much would be in someone's system going by half lives and if they took multiple doses? This may sound confusing so I'll use an example.
2:00 P.M. - Took 1.5 mg
6:00 P.M. - Took 0.5 mg
7:00 A.M. - Took 1.0 mg
10:00 A.M. - Took 0.5 mg
4:00 P.M. -Took 0.5 mg
10:00 P.M. - Took 1.0 mg
9:00 A.M. - Took 1.5 mg
1:00 P.M. - Took 1.0 mg
5:00 P.M. - Took 0.5 mg
9:00 P.M. - Took 0.5 mg
8:00 A.M. - Took 1.0 mg
11:00 A.M. - Took 1.0 mg
Now, using the above amounts and half life of approximately 11 hours, how could you figure this up? Start with the 1.5 mg dose at 2:00 P.M. and then add the 0.5 mg dose at 6:00 P.M., which comes out to 2.0 mgs, and then divide that by 2 when the 11 hour half life hits at 1:00 A.M. bringing the level down to 1.0 mg. Then add day 2's, 7:00 A.M., 1 mg dose to that, bringing it up to 2.0 mgs now? And just continue like that?
Sorry if this is confusing, just really trying to understand it all, and hoping someone can help. Thanks!
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