title: Varenicline: depression and suicide. Nicotine is a safer option.
mesh_terms: D001552:Benzazepines / Q000009:adverse effects*; D003863:Depression / Q000139:chemically induced*; D006801:Humans; D009538:Nicotine / Q000627:therapeutic use; D011810:Quinoxalines / Q000009:adverse effects*; D016540:Smoking Cessation / Q000523:psychology; D013405:Suicide / Q000523:psychology*
chemical_list: D001552:Benzazepines; D011810:Quinoxalines; D009538:Nicotine