Bupropion or Zyban is use to reduce withdrawal symptoms experienced in smoking cessation. Bupropion or Zyban is marketed under the name Wellbutrin as an antidepressant.
Bupropion or Zyban acts at the nervous system level to counteract the symptoms of withdrawal - irritability, dizziness. It also seems to reduce the urge to smoke.
Because Bupropion or Zyban's effect is on the nervous system, its side effects are also related to the nervous system - drowsiness, dizziness. The degree of side effects may vary widely from person to person.
People using other drugs that affect the nervous system or that have nervous system conditions should use Bupropion or Zyban with care.
In combination with other drugs that affect the nervous system, Bupropion or Zyban can enhance nervous system effects. For smoking cessation, Bupropion or Zyban can be used with nicotine replacement therapy - this will increase the success rate.
The relevant product monographs must be regarded as the appropriate sources of prescribing information.