BAD SPELLERS OF THE WORLD UNTIE!!!!
I don't believe that being able to spell, or not being able to spell, the name of one's medications is any indication of whether one has read the instructions and warnings that come with meds.
As you might guess from my first line I can't spell wortha tinker's hoot(special blessings on whoever invented spell check!), but I read the instructions on my meds and the packet of info that comes with my prescriptions. Doing that I've caught a couple of times when either a could be allergic to a med or it was contraindicated with another med I take.
I take a laundry list of medications for a variety of problems. I also have memory problems related to one of my diagnoses. I keep a written list of all my meds and their dosages in my wallet so I have the information handy when I see a doctor.