WASHINGTON ( CNN ) -- Note : Chantix and Zyban ##x carry warnings about mental health risks . These include depression and suicidal thoughts when taking the drugs . Drug makers must conduct study how often these serious symptoms occur . Some symptoms could be the result of nicotine use .
Note : Chantix and Zyban ##x carry warnings about mental health risks . These include depression and suicidal thoughts when taking the drugs . Drug makers must conduct study how often these serious symptoms occur . Some symptoms could be the result of nicotine use .