Senna
"Ok, I'm gonna give you advise if you have never taken this medicine before, make sure you have the next day off. Don't try to take this med before bed, thinking you'll have one go at the toilet and your ready to go. Second I would try changing your diet, an enema or even miralax before considering this med. I was having stomach pain and had an xray of my stomach and my Dr showed me how stopped up I was, it's amazing how much the body can hold. Anyway I say all this because it does clean u out but yes your cramps are close to something like food poisoning cramps, because it's forcing ur body to do something it can't effectively do on its own. I hope this helps."