As I have written before,my gastroparesis was caused by my narcotics. Many medications can do this. Before botox was more popular and my Reglan was discontinued (I had Parkinson-like symptoms), doctors in Philadelphia wanted nto place a pacemaker in my stomach. A lawyer I knew told me about "botox" trials that were starting at another hospital in Philadelphia and his daughter had it...was doing great! Not wanting to travel into the city and so far away...but getting sicker and sicker...the erythromycin wasn't really helping as a prokinetic (making my stomach contract and emptying it)...my local GI doctor told me Hershey Medical Center was starting to use botox to the pyloric sphincter. I had it done January 2014 and still am 80% better! A God send!