Tonifies kidney yang and qi, benefits tendons and bone. Use for various symptoms associated with deficiency of kidney yang, including lower back pain, weak waist and legs, pain in kidneys, dizziness, difficult breathing, and ear-ringing. Also urinary dribbling, incontinence, or weak stream. Relieves  problems due to excessive male sexual activity, including fatique, poor memory and lower backache. Can be used for long periods as a general kidney yang tonic.