It's interesting. It's a drug that's used for chronic venous insufficiency in the legs. I googled it yesterday. Unfortunately it turned up a few studies of pentoxyfilline in m.s. patients in which the drug failed to produce any improvements. The idea too with this drug is that it changes the shape of the red blood cell for better blood flow.
"However, the truth in science ultimately emerges, although sometimes it takes a very long time," Arthur Silverstein, Autoimmunity: A History of the Early Struggle for Recognition