The reason I will regret taking a CRAB is (a) limited effect (b) feeling sick (c) potential side effect and (d) knowingly contributing to a pharma industry that is generally acknowledged to be about as corrupt as they come.
I won't (can't) argue with (a) and (d). As to (b) and (c), I can honestly tell you that, as a person who usually has every side effect one can have from a drug, I have absolutely no side effects from Copaxone. At first, I had the site reactions everyone complains about, but I would say these stopped after 90 days. I know others are not as lucky, and never shake the site reactions.
When the nurse was showing me how to give myself the Copaxone injections, she said, "In a few months, this will be just like brushing your teeth," and I responded, "Yeah, if your routine is to brush your teeth with a noxious chemical and a razor sharp implement!"
Two years later, I am happy to report that every time I brush my teeth, I think about what that nurse said and smile to myself. Not in a millenium did I think that I would get used to basically giving myself a nasty bee sting every morning, but it really has become as much of a non-event as brushing my teeth.
To head off the expected accusations, I am not a shill for Copaxone, just someone who is grateful to have insurance that covers it, and a body that seems to tolerate it.