irritable bowel syndrome
"IBS-D, sometimes C... this medication is great for IBS-D. On numerous occasions I’ve been out to dinner and suddenly started experiencing the all-too-familiar cramping that always leads to terribly painful bowel spasms and the need to find a restroom, stat. I can take one Bentyl at that moment to ease the spasms, get through the rest of the dinner meeting, and make it to my home. 
A sort of pleasant “side effect” is that it seems that since the Bentyl stops the spasms and effectively makes me able to wait longer to use the restroom, my stool isn’t so loose when I do finally go. Also, there is so much less abdominal pain associated with a bowel movement. 
I would highly, highly recommend this medication! I’ve noticed no adverse effects."