John,
Below are 2 more links. The first is a draft from our Health Pages using the National
Multiple Sclerosis Society information.
http://www.medhelp.org/health_pages/Multiple-Sclerosis/DRAFT---The-Disease-Modifying-Drugs/show/1192?cid=36
The second is a direct link to the same info from the NMMS:
C:\Users\Brenda\AppData\Local\Temp\12.3.7_DiseaseModifyingDrugs-2.pdf
Feel free to ask any questions.