Deerhorn is the ossified antler, or antler base which dropped off in the next spring after the pilose antler is cut, of Cervus elaphus Linnaeus or Cervus nippon Temminck (Fam. Cervidae), commonly known sa "malujiao (red deer antler)", "Meihualujiao (sika deer antler)", "Lujiao tuopan (dropped disk of antler )" respectively.

Action: To warm the kidney and strengthen the tendons and bones, and to promote blood circulation and cause subsidence of swelling.

Indications: Impotence, seminal emission, back pain with cold sensation; chronic ulcers and sores; mastitis at early stage marked by congestion, swelling and pain.