Senega is the dried
rootof the " Polygalasenega", In 1911, it was official in the British and United Statespharmacopoeias. Senega contains an active principle, saponin. Senega is used chiefly as a stimulating expectorant in chronic bronchitis. It is occasionally used as a diureticin 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
gramof 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 nauseaand vomiting.
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