Solifenacin
"I'm 21 and recently started taking VESIcare, at first it was 10mg but i literally could not poop i would go 2-3 days without pooping and had severe heartburn. My doctor lowered it to 5mg and it helps a bit with the urinating but i do notice in situations where i'm stressed it doesn't seem to work as well but when i'm relaxed its perfectly fine. Also, with the 5mg i'm still having constipation and only poop about every other day and i'm still having bad heartburn every few weeks or so. I'm not sure if i want to stick with this medication or not because i should not be having this bad of heartburn at 21."