It is the wood of one species of the genus which affords the nux vomica, viz. strychnos colubrina Lin. Sp. Pi. 271. (See Strychnos). It is brought from the East Indies in pieces about the size of a man's arm, covered with a brownish or rusty coloured bark, internally of a yellow colour, with whitish streaks.
It hath a faint but not disagreeable smell; after chewing for some time the taste is bitterish: it gives a gold colour to water and to spirit; affords a fourth of its weight of extract by means of spirit, but not so much by water.
It hath been given in doses of half a drachm, as an anthelmintic; in quartan agues and some other disorders. It operates differently, sometimes passing off by urine, at others by sweat, or by stool. In a less degree it displays the deleterious qualities of the nux vomica.