Gambir Plant is the dried hook-bearing stem branch of Uncaria rhynchophylla (Miq.) Jacks.,Uncaria macrophylla Wall., Uncaria hirsuta Havil., Uncaria sinensis (Oliv.) Havil, or Uncaria sessilifructus Roxb. (Fam. Rubiaceae).

Action: To remove heat, subdue hyperactivity of the liver, and arrest convulsions.

Indications: Headache, dizziness, convulsion, eclampsia, hypertension.

Usage: To be added when the decoction is nearly done.