depression
"I started out on 10mg of Celexa, nothing happened. When I got to 20mg, I started feeling sick (I felt like I was going to vomit all the time) and irritated. Once I got to 40mg, I began to feel impulsive and wired. I could barely sleep and I was doing risky things; even my friends said I wasn't myself! I got put on Neurontin after this, I'm glad I switched."