Pantoprazole
"I've had moderate to severe GERD for 10+ years; last med I was on was Lansoprolzale for 5+ years.  Recently, I was switched to Pantaprozale Sodium 40 mg a day; have taken it for less than a week and it's been hell since the first day I took it. Have had sweats and the worst joint and muscle pains and cramps, and ulcers in my mouth along with a sore throat. At the NP's advice who prescribed it I also take Magnesium.  I'm stopping this med today and hope these side effects go away soon."