Sex dependent antinociceptive activity and blood pressure changes in SHR, WKY and WAG rat strains after diclofenac treatment.

Antinociceptive action of diclofenac (non-opioid analgesic) was investigated in male and female normotensive (WKY) and genetically established hypertensive (SHR) and normotensive WAG. The drug was administered subcutaneously in doses of 10 mg/kg body weight and per os 20 mg/kg and 40 mg/kg. Statistically significant differences in pain threshold were reported between male and female rats of investigated strains.