Combination : The addition of cloves, ginger, cinnamon, or other aromatics are excellent correctives of the nauseous effects. A teaspoonful of cream of tartar to a teacupful of the decoction of infusion of Senna, is a mild and pleasant cathartic. Senna Pods, or the dried, ripe fruits, are official in use as senna powder, though the quantity is restricted, as an adulterant. They are milder in their effects than the leaflets, as the griping is largely due to the resin, and the pods contain none, but have about 25 per cent more cathartic acid and emodin than the leaves, without volatile oil.
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