• Seizures (see Wellbutrin Seizures or Zyban Seizures)
• Suicidal thoughts or behavior (see Wellbutrin SR and Suicide or Zyban and Suicide)
• Anxiety, agitation, or panic attacks
• Hostility or aggressiveness
• Engaging in unusual or dangerous activities
• Restlessness or an inability to sit still
• Extreme elation or a feeling of happiness that may switch back and forth with a depressed or sad mood
• Other unusual changes in behavior
• Hallucinations
• A fast heart rate
• Chest palpitations
• Difficulty sleeping
• Feelings of internal jitteriness or restlessness
• Signs of an allergic reaction, including an unexplained rash, hives, itching, unexplained swelling, wheezing, or difficulty breathing or swallowing.
   

• A loss of appetite
• Frequent urination, bladder infections, or other urinary problems
• Flushing (redness of the skin, especially the face)
• Migraine headaches
• Joint pain or arthritis
• Taste changes
• Hot flashes
• Muscle twitching
• Coughing
• Low blood pressure (hypotension)
• Sensitivity to the sun
• Canker sores
• High blood sugar (hyperglycemia) or low blood sugar (hypoglycemia)
• Anemia
• Leg cramps
• Impotence (erectile dysfunction or ED) or a decreased sex drive (see Wellbutrin SR and Libido or Zyban Sexual Side Effects).