I don't know, but I could only take Tecfidera for a short time as it really lowered my counts.

I was on Tecfidera my doc stop it and said he wants to try this new med because I kept having MS problems he also put me on V D every day so I can't say if it does but O know I been on it for two years and everything stays the same. I hope this help.

Your doctor should take a blood test to see how your doing

Not sure about blood count but I was on tecfidera for a couple of years and had no problems. I loved it.

I was taking Tecfidera for just over a year and went into the hospital when the Nero dr took me off of med right away