are hydroxyanthracene glycosides derived from Senna leaves.
They have been used as natural, safe time-tested laxatives
in traditional as well as modern systems of medicine.
Available in various convenient dosage forms they can be
used to relieve occasional as well as habitual constipation
angustifolia or Tinnevelly Senna, Senna Indica, C. elongata
is an annual growing in the Yemen and Hadramaut provinces of Arabia Felix, in
Somaliland, Mozambique, Sind, and the Punjab. In Southern India it is cultivated
and grows to a larger size. In the German and Swiss Pharmacopoeias, the official
drug is restricted to Tinnevelly Senna, and also in the British Pharmacopoeia
and the Pharmacopoeia of India. Senna Indica also includes the variety
known as Arabian, Mocha, Bombay, or East Indian Senna. Both varieties, as well
as Alexandrian Senna, C. acutifolia, are official in the United States Pharmacopoeia.
is a certain difference in the qualities and also in the names of the species
imported into Britain and America. The fine Tinnevelly Senna goes from Madras
or Tuticorin to Britain. The leaflets are unbroken, from 1 to 2 or more inches
long, thin, flexible, and green.