Background: Aconitum sinomontanum Nakai (ASN) has been reported to have analgesic effects. In this study an animal model of pharmacopuncture using ASN (100-500 mg/kg) was examined.Methods: Sprague-Dawley (SD) rats (<i>n</i> = 40) were randomly assigned ASN-Low (1 mg/mL, 1.8 mL, ASN-L), ASN-Intermediate (5 ASN-M), ASN-High (10 ASN-H), negative control (0.2 mL normal saline), and posi...