There's 3 prescriptions hun. 1st prescription you get two boxes that goes for two weeks, then before the two weeks is up you go back to the doctor to get the next prescription etc... From memory its about 30 bucks per prescription. The only side effects were a bit of nausea and stupid dreams (much like being pregnant eh) i've quit cold turkey before and on the champix i wasn't snappish at all. Because you have 15 days to quit from when you first start taking them. You just smoke like normal, and after a couple of days you notice that they start to REALLY taste like crap (sounds stupid but i'm sure smokers will kwim) and you just find yourself smoking less and less and you don't even really miss it cause it' turns off your receptors so you dont crave it.