Piper longum root

Piper longum root

(notes on materia medica)

[synonym] Piper parvum.

[source] it is the root of Piper longum (Piper longum L.) which belongs to the family Piperaceae.

[chemical constituents] the root contains piperine, piperine and piperine. The stem contains piperine.

[pharmacological action] piperidine can significantly reduce blood pressure in dogs, but atropine and antihistamine have no effect on it. After the spinal cord was transected at the second cervical spine, the hypotensive effect remained. It had no effect on the frequency and depth of respiration. It can inhibit the tension and contractility of ileum in rabbits and rats, and finally paralyze, which can be recovered by washing off the drug. The pharmacology of piperine is shown in "Piper longum".

[nature and taste] notes on materia medica: "it is pungent, warm and non-toxic. "

[function and indications] "materia medica notes": "it is mainly used for five kinds of fatigue and seven kinds of injuries, Yin sweat and nuclear swelling. "Cold air nausea, abdominal distension, indigestion, cold hernia, nuclear swelling, the woman cold no son. The treatment of lumbar and renal cold, in addition to blood gas. "

[usage and dosage] oral administration: decoction, 0.5-1 Qian, or into pills, powder.