Tolu

 Tolu

Tolu is an excellent expectorant, when there are no inflammatory symptoms.

It is given internally  in asthma and chronic catarrh.

Dose , of the balsam , from five to thirty grains, combined with mucilage and suspended in water; of the tincture , from a half to one drachm; of the syrup , from a half to four drachms.