Senna
"I was diagnosed with a kidney stone. Pain meds caused constipation. Took Senna-S, two tablets early AM first day...drank lots of water...nothing. Took a second pill at bedtime, next morning...nothing. Took two more pills the next morning for a total of 5 and I am so cramped up I cannot lay down. No relief for 7 days. I hoped this would work but the cramping, combined with the kidney stone is unbearable. Going to the pharmacy for something more aggressive to end the misery. If you can afford to wait for Senna-S to work, good for you. If you have a kidney stone and are on pain meds don't waste what little comfort you can get."