i dont now
It depends on if the cough syrup contains dextromethorphan (DXM). DXM and adderall are a very unwise mix, creating a MAOI. It can cause very negative consequences and I would highly suggest against...
xanax,advil,painkillers,etc
If your doctor has full knowledge and is okay with it, yes.
Definitely not! Anything past its expiration is not GOOD!