My doctors prescribed adderall (dextroamphetamine and racemic amphetamine) xr i asked for it due to how hard it is to find the ir versio turns it bad. need to switch back. xr was filled 4day ago?

No problem: There is no problem switching back to the IR version. You can start any day.

Same Product : Both medications are the same product but the delivery system of the XR allows the product to last 8 hours instead of 4 hours. Also the XR produces a slower release and consequently less reactions. I do not recomended to return to IR. You might need a dose adjustment only. There is also a higher risk of dependence with the IR due to the way it acts.