Senega is the dried root of the "Polygala senega", In 1911, it was official in the British and United States pharmacopoeias. Senega contains an active principle, saponin. Senega is used chiefly as a stimulating expectorant in chronic bronchitis. It is occasionally used as a diuretic in renal dropsy. It is a cardiac depressant, and is contra-indicated in diseased conditions of the heart. It has a tendency to upset the digestion, and is therefore only used in combination with other drugs in what are termed expectorant mixtures. It was formerly used as an antidote for snake bites.

Dosage and Administration

Senega is usually taken orally in dosages equivalent to 0.5-1 gram of the powdered root. cite book | author=Heinrich, Michael, A. D. Kinghorn, and J. D. Phillipson | title=Fundamentals of Pharmacognosy and Phytotherapy | publisher=Churchill Livingstone | year=2004 | id=ISBN 0-43-07132-2]


Saponins are shown to be very irritating and haemolytic. Taken orally these adverse effects seem to be bypassed. Caution should be taken if a sensitivty does exist or if taken at high doses. The most common adverse side effects are nausea and vomiting.

External links




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Look at other dictionaries:

  • senega — ☆ senega [sen′i gə ] n. [< Senega (root), var. of SENECA1: from use by the Seneca against snake bites] 1. an E North American milkwort (Polygala senega) with single racemes of white flowers 2. its dried root, formerly used as an expectorant:… …   English World dictionary

  • Senega — Senĕga, Senĕga Kreuzblume (Polygala Senega L.), s. Polygala und Senegawurzel …   Kleines Konversations-Lexikon

  • senega — sf. bot. toks putokšlinių šeimos Amerikos augalas: Putokšlė senega (Polygala Senega) LBŽ. Senegos šaknis LBŽ …   Dictionary of the Lithuanian Language

  • Senega — Senega, Senegawurzel, die Wurzel der nordamerik. Pflanze Polygala Senega, ist officinell, wird bei chronischen Katarrhen u. andern atonischen Brustkrankheiten angewendet …   Herders Conversations-Lexikon

  • Senega — Sen e*ga, n. (Med.) Seneca root. [1913 Webster] …   The Collaborative International Dictionary of English

  • Senega — Senega, Art der Pflanzengattung Polygala, s.d …   Pierer's Universal-Lexikon

  • Senĕga — Senĕga, Pflanze, s. Polygala …   Meyers Großes Konversations-Lexikon

  • SENEGA — fluv. Africae in Nigritia maximus, seu potius ramus praecipuus Nigri, maxime Borealis alias Darat, in Oceanum Atlanticum se exonerat, prope Arsinatium promontor. ubi Francorum colonia. Ei adiacent Urb. Genehoa, Tombutum, aliaeque. Excurrit ab… …   Hofmann J. Lexicon universale

  • senega — noun 1. dried root of two plants of the genus Polygala containing an irritating saponin • Hypernyms: ↑root • Part Holonyms: ↑Seneca snakeroot, ↑Seneka snakeroot, ↑senga root, ↑senega root, ↑senega snakeroot, ↑ …   Useful english dictionary

  • sénéga — (entrée créée par le supplément) (sé né ga) s. m. Plante, le polygala senega, L. •   Le docteur Honoré, frappé de voir les naturels du centre de l Australie guérir toutes les maladies de poitrine par le sue du sénéga, Journ. offic. 23 avril 1872 …   Dictionnaire de la Langue Française d'Émile Littré

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