skin or soft tissue infection
"I was put on this drug, intravaneously, following emergency surgery for an anal abcess.  When I awoke in the hospital several hours after surgery, the first reaction felt like hot, fluid fire being poured down my throat...burning my mouth, throat, esophagus, and stomach.  After that, I immediately began havid horrid hallucinations...saw several dark, death shadows hovering over me and flying across the ceiling and walls.  I immediately called the nurse and told her about the symtoms, and insisted that she remove all IVs (she wasn't very symphathetic).  I finally slept for a couple of hours, but when I awoke, I had an awful metallic taste in my mouth that lasted for 2 weeks after I was released."