There are many patients that also prescribe this drug for its effectiveness in reducing symptoms of ADHD or attention deficit disorder, and it works very well at reducing a person’s cravings for nicotine as well. Some of the most common symptoms that are experienced while using this medication include blurred vision, dry mouth, dizziness, sore throat, aches in the joints and muscles, nausea, vomiting, problems with sleeping, constipation, flushing, loss in appetite, and headache.