For some reason some drugs can be used infinitely. The ones I found were the flu shot, aspirin, bandages, coedine, and oxycodone.
BEST BUG EVER
Not really. Many didn’t have their effects applied either.
Try build #6126 (right before introduction of bug) if you really need that “fix”.
apparently there is a work around at least for the stuff that wont apply use the % button to apply the medicine in question that way if its not applying the normal way