I've gotten many different answers to this question and of course the doctors say, Yes! But, if the drug (Copaxone in this case) is intended to slow progression or decrease the number of exacerbations and I am now secondary progressive (where I have no exacerbations & the disease is progressing) why should I continue to inject myself everyday?! Can anybody shed some light. By the way, I've been on every approved drug modifying therapy, but none consistently. That may or may not have contributed to the progression, but most of the medications made me feel worse!