Additional doses may be needed in people with poor immune function but are not necessary for most people. In those who have been exposed to the hepatitis B virus but not immunized, hepatitis B immune globulin should be given in addition to the vaccine. The vaccine is given by injection into a muscle.
Updated October 30, 2014. Neither had I until a friend with multiple sclerosis (who sees the same neurologist that I do) called me to tell me that it had changed her life.. Nuvigil (armodafinil) is a derivative of Provigil (modafinil), which many people with MS take to combat MS-related fatigue. My ears perked up at the excitement in my friend's voice. She went on to tell me that she couldn't tolerate Provigil, as it left her too wakeful to sleep at night.
BRAND NAME: Nuvigil. DRUG CLASS AND MECHANISM: Armodafinil is an oral drug that is used to promote wakefulness. It is similar to modafinil (Provigil). Like amphetamines, armodafinil promotes wakefulness by stimuatIng the brain; however, the exact mechanism of action of armodafinil is unknown.