parts—diuretic.
The root yielded a lignin, sesamin; amides (including piperine, piperlongumine) and beta-sitosterol.
Piper thomsoni Hook. f.
Family Piperaceae.
Habitat Sikkim, Bengal, Manipur, Khasi and Jaintia hills.
Folk Jangali Paan.
Action Root—(macerated in water) diuretic.
Piper wallichii Hand.-Mazz.
Synonym P aurantiacum Wall ex
DC.
Family Piperaceae.
Habitat Nepal, Lakhimpur and Khasi Hills in Assam.
Ayurvedic Wrongly equated with Sambhaaluka. (Sambhaalu has been identified as Vitex negundo.) Renukaa is also a wrong synonym (it is equated with the seed of Vitex agnus-castus).
Siddha/Tamil Kaattu-milagu.
Action Fruits—used as uterine stimulant.
The fruit contain piperine, piperettine and sylvatine, besides beta-sitos terol
The seeds gave aurantiamide, its acetate and auranamide.
The fraction, containing alkaloids, showed oxytocic activity. The lignin constituents inhibited platelet aggregation caused by platelet-activating factor.
Piscidia piscipula (Linn.) Sarg.
Synonym P erythrina Linn.
Family Papilionaceae; Fabaceae.
Habitat Native to America; introduced in India.
English Jamaica Dogwood.
Action Sedative, spasmolytic, analgesic, anti-inflammatory.
The bark gave several, isoflavonoids. Piscidone and piscerythrone exhibit spasmolytic activity. Piscidin glycoside and rotenone are toxic constituents.
The bark is used for neuralgia, migraine and insomnia in South America and West Indies.
In some in vitro tests, the root bark’s extract exhibited antispasmodic effects as strong as papaverine’s (Natural Medicines Comprehensive Database, 2007.)
Pisonia aculeata Linn.
