title: Tacrine study shows benefits, high level of intolerance at high doses.
mesh_terms: D000544:Alzheimer Disease / Q000188:drug therapy; D006801:Humans; D015337:Multicenter Studies as Topic; D016032:Randomized Controlled Trials as Topic; D013619:Tacrine / Q000008:administration & dosage / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D013619:Tacrine