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49 years
I need to know what the Seroquel is for and what the XR means. My doctor prescribe me 1 tablet seroquel 300mg xr at the evening but I couldn't find the 300mg so I have the 100mg, 3 instead 1.
Feb 23, 2015

Dr. Feras Mahdi Internal Medicine
XR stands for extended release....which means the tablet is designed so that the active ingredient slowly releases...thus increasing its active time in the body and decreases number of doses. 

If you have 100mg XR then  yes you can take 3 at once instead of 300 XR

If 100mg (not XR) then one tablet  every 8 hours. 

Hope that helps
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