I did go through a period of trying to hide it which was pretty well impossible as I need to take mine over the entire day.
Mostly people have been fine with it. It is amazing how many people are interested in medication relating to MI and about the illness itself.
De stigmatization in many ways relates to how you deal with it with other people. Most people think I am an ok guy who is a little strange, so they tend to be more forgiving.
I really try to not make a big deal out of it, and as I said, slip it into the conversation when appropriate.