Hi I have been taking Tecfidera since January 2015. I have noticed that my lymphocytes have dropped to .03 and when I asked my neuro about PML she just tells me there is nothing to worry about. Should I stop taking the Tecfidera?
A lymphocyte drop to 0.03 on Tecfidera would be very serious if it continues. I suspect you are reading it wrong because even a drop to 0.3 would be serious. Please make sure you are referring to the absolute lymphocyte count and have another talk with your neurologist. All authorities, even the most conservative, recommend stopping Tecfidera for lymphocyte counts lower than 0.5 lasting at least 6 months
Revere (Rip) Kinkel MD
Director of the Multiple Sclerosis Program
Professor of Clinical Neurosciences
University of California San Diego