I would listen to your doctor. The doctor knows all about the safe dosages, etc. I'm sure he has extensively studied all of the meds he prescribes. I have been prescribed more than recommended dosages of Zoloft, Seroquel, and a few others. My pdoc also told me I can take more than the recommended dosages of some over the counder meds to treat different ailments that may not even be indicated on the bottle/box. If you feel uneasy, buy a pill splitter(that is if it's a tablet) and split it in half and take 1 1/2 pills first to see how that effects you.