I thought about calling initially but my experience is that the people answering their phone lines are generally pretty clueless (answering questions by looking up answers in a preset database--something a monkey could almost do). Sure enough the person I spoke with gave set answers such as "their are no studies showing any interactions" and "we always defer to the treating neurologist" and "always tell your neurologist when you start a new drug.". I asked to be transfered to the research dept to speak with someone. He asked me if I was in the health field. When I said no he repeated his statement about checking with my neurologist. Erghhhhhh. It just frustrated me. Shared Solutions had no problem transfering me when I was having Weird reactions to Copaxone.