I am not a pharmacist but do understand the need for the correct spelling of
a drug.    However, your comment about misspelling with abandon on Usenet
reminds me of another newsgroup that I read.  There is a poster on that
group that group whose spelling is the most horrid that I've seen in many
years.  It's so bad that one would almost suspect that it was a troll.  In
addition, she never uses capital letters, not even for the word "I".
Several of the posters ripped her to shreds and had no mercy.  Reading the
reply posts was like watching the piranhas feed.