"Gastrointestinal side effects" I assume that is code for excessive and frequent evacuation of watery feces.
Sidebar: Mounjaro changed my life. I'd been very diabetic (300 units of insulin a day) for years on end. Taking that much insulin, my normally large frame got very large indeed. A couple of months into the Mounjaro and I was off insulin; a year into it and I was down 75 lbs and healthier than I'd been in 20 years.
I consider it a likely lifelong medication now simply due to that night and day difference to my life. It’s extremely rare I have a day where I need to be within 5 minutes of a restroom now.
My primary care doctor mentioned this might be a side effect when I first started, and she ended up being more correct than even she expected to be.