Krampeanfald, svimmelhed, fornemmelse af prikken og stikken, dissemineret sklerose, sygdomme i øjets nervesystem, tab af følelsen i eller evnen til at bevæge visse legemsdele, svær hovedpine, nakkestivhed, forstyrrelse af normale hjernefunktioner.
Flu-like symptoms, including chills, and muscle and joint pains Fits, dizziness, pins and needles, multiple sclerosis, disease of the nerves of the eye, loss of sensation in, or of the ability to move some parts of the body, severe headache with stiff neck, disruption of the normal brain functions