Well, a well known side effect of those drugs is "retaining your eyesight".
Its always worth remembering that, as far as I am aware, drug companies don't actually CAUSE the diseases they make the drugs to treat.
Also, next time that you think about those "excess profits", its useful to remember two things
1. It can cost up to 400 million US dollars to put a drug through clinical TESTING and
2. there has been a massive winnowing of drug companies over the last decade or so, with amalgamations left right and center as its just too expensive to develop and market drugs nowadays. there used to be dozens of huge drug companies, now very few.