Can you take ondansetron for more than 5 days? if not, why? i have a lot of bladder pain and i get nauseous which can affect how much i eat. my pcp will only give me 5 days worth?

Yes, you can take more than 5 days but your doctor gave you just a 5 day course because he expected your pain will resolve during that time. This is the time you should call your primary care doctor for finding the etiology of the bladder pain. Your PCP may have to refer you to a specialist and give you a refill for the antiemetic med.

Your bladder pain needs to be diagnosed and treated so pl see a Urologist.