Expelling wind and cold, activating blood circulation and relieving pain. Indicated for arthralgia caused by wind-cold-dampness evils as well as stagnation of qi and blood, with symptoms including numbness in the limbs, pain in the waist and legs, contracture of tendons and vessels, or traumatic injuries, sudden lumbar sprain, chest pain when breathing; or gastric and abdominal cold and pain, dysmenorrhea, abnormal leucorrhea and abdominal mass.