migraine
"I have given this through IV at the hospital for migraine without being warned of side effects. Within 15 minutes my entire body felt like it was on fire and I felt unbearably agitated and insane. I was writhing in the bed and gripping at my face and they told me it would pass.  It took a benadryl and about 45 minutes to calm down. Reglan was probably the scariest experience of my life."