Hi, guys! Basically, one of my character's younger siblings is a but a plot device (R.I.P.), and I have certain scenarios planned to stress out the main characters. The sibling in question is taking medication that has some intense side effects. Here are some symptoms/restrictions I was thinking of: cannot go swimming/operate machinery/drive/etc. experiences physical and mental fatigue going cold-turkey on the medication can be catastrophic gets drunk twice as fast psychoactive drugs like marijuana can induce a relapse What medication would produce the above effects? And, subsequently, what illness would the medication be taken for? Thanks so much!