This discussion came up a while ago on another board I used to frequent and it's an important topic to discuss. Many of us take toxic drugs to control our disease and in the event of a medical emergency, it's very important that the medical staff know what we're currently taking. If we can't speak for ourselves, they won't have the information they need. When I first started MTX I read that a medical bracelet was recommended so no contraindicated drugs would mistakenly be given during an emergency. When I asked my RD about this, he agreed it was a good idea. Now, I know myself and I know I won't wear a bracelet every day, so I have a medical card that I keep in an easily seen part of my wallet that lists what I take, how often and how much along with my diagnosis, blood type, etc. There is even an on-line card that you can print out but I don't remember the name of it right now, sorry. A Google search should make it easy enough to find if you're interested.
Anyway, I just wanted to alert any of you who don't already do this as to the importance of keeping accurate medical information handy. It could save your life!