high cholesterol
"I am 59 , very active, on thyroid and blood pressure medication for at least a year. All was good. Started taking simvastatin due  cholesterol results. Took one at night after dinner  20 mg  for two days. On the second day, while driving , I was getting extremely sleepy. Kept waking myself up by slapping my face. I had a blank moment while driving...woke up when the car hit a kerb with a thud!.
Obviously now I don't think I will take this simvastatin. I will have to tell my doctor that she almost lost her patient and took a few other people off ."