Hi, @dhkerby - you might speak to your prescribing doctor about this. I found my allergy medication (which is different than a mental health medication, admittedly), which was supposed to be a 24-hour pill, wore off around 5 p.m. daily, after a first dose at 8 in the morning.

Turns out my allergist determined I metabolize it differently than others, and he had me start taking the 24-hour allergy pill twice daily.

Do you think it is possible you may metabolize this medication differently? Has your doctor offered an opinion?