How Long Does Lithium Stay In Your System


Asked by Kristen

How Long Does Lithium Stay In Your System

If my lithium dosage is decreased from 900mg to 600mg, how long before my blood levels will reflect that decrease? Also, what is a theraputic level?


According to one doctor on the internet Lithium has a half life of 24 hours. He stated it takes about 5 half-lives for a drug to completely your system so it will take about 5 days to get to 600 mg. By the second day it should be at 750, then 675, 637, 618 etc. - so it gets down pretty quickly.

Your doctor would have to determine what a good therapeutic level is...good luck!

You should know: The answer above provides general health information that is not intended to replace medical advice or treatment recommendations from a qualified healthcare professional.