Psychiatric Treatment Post Weight Loss Surgery DrugAbsorption SiteManagement LamotrigineStomach/Proximal small intestine Monitor for decreased efficacy OlanzapineStomachMonitor for decreased efficacy- Switching to Zydis does not increase absorption QuetiapineStomach/DuodenumMonitor for decreased efficacy ZolpidemAbsorption impacted by food; absorbed rapidly Increased absorption time with delay in effect; take on empty stomach Am J Health-Sys Pharm, 2006
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