Fever, dry mouth, constipation, tummy discomfort, nausea and vomiting, skin rash or itching, insomnia, agitation, tremor and sweating, difficulty concentrating, headache, dizziness, feelings of depression, anxiety, changes in the taste of food or drink, chest pain, feelings of weakness, faster heartbeat, increased blood pressure, flushing, confusion, loss of appetite, ringing in the ears, disturbance of vision, vasodilatation, fainting, irritable or aggressive behaviour, seizures, tingling or numbness, muscles spasm, tremors, inco-ordination, palpitations, hallucinations, strange dreams including nightmares, depersonalisation, jaundice, changing of blood sugar levels, worsening of psoriasis, urinating more or less often.
Those are the side effects of Zyban.
Everything I have to look forward to.