The issue of muscle relaxants is a ridiculous one in this situation...they just relax the mind, not the body. This is a total disservice to the pt, and an expression of lack of respect for this breastfeeding woman. Certainly valium in a low dose works just as well, Ibuprofen, physical therapy. I'd recommend that she reapproach her doctor and tell him(her) that she demands a drug that is compatible with breastfeeding. I actually don't have my references with me now about flexeril, but it seems to me that valium would be more appropriate, or even tylenol with codeine. (these issues obviously make me furious!!!!)-Anne Eglash MD