Saline with benzyl alcohol prevents pain of needle insertion: true but dangerous.
D000765:Anesthesia, Conduction; D019905:Benzyl Alcohol; D001592:Benzyl Alcohols / Q000008:administration & dosage*; D001593:Benzyl Compounds / Q000008:administration & dosage*; D006801:Humans; D010592:Pharmaceutic Aids; D012965:Sodium Chloride / Q000008:administration & dosage*
D001592:Benzyl Alcohols; D001593:Benzyl Compounds; D010592:Pharmaceutic Aids; D012965:Sodium Chloride; D019905:Benzyl Alcohol