Amoxicillin / clavulanate
"I was diagnosed with a bacterial infection after having a cold and cough for a month. I visited my doctor after having a continuous severe headache, that reached down into my neck and problems with my vision. Within a few hours to 36 hours of taking this medicine I started having trouble breathing, tightness in my chest, coughing, rhinorrhea, higher heart rate, restlessness and nervousness. I took a total of six pills before I decided I could not deal with the side effects anymore. I should have stopped and contacted my doctor when I noticed the first side effect."