title: Nicotinamide ineffective in parkinsonism.
mesh_terms: D000328:Adult; D006801:Humans; D007022:Hypotension / Q000139:chemically induced; D008875:Middle Aged; D009536:Niacinamide / Q000009:adverse effects / Q000627:therapeutic use*; D010300:Parkinson Disease / Q000188:drug therapy*
chemical_list: D009536:Niacinamide