seizures
"I have been taking 1500mg a day of Keppra for 7 years.  I have had two perfectly healthy babies.  I did not breast feed.  I didn't want to take the chance.  I was just happy they were born normal and healthy.  At first it made me very, very tired but after a couple months, that subsided.  I did start to gain weight after taking it but I thought that was from the pregnancies or a thyroid issue.  I had no idea so many people gained weight with it and had irritability problems.  Those are some things I have lived with for the last 7 years that could be a result of this.  It does however, control my seizures.  I have grand mal seizures and had a few over the years because I could not afford to buy the Keppra."