Cantharides, tincture and all vesicating liquids, preparations or admixtures of.
CANTHARIDES, or Spanish Flies, the common blisterbeetles (Cantharis vesicatoria) of European pharmacy.
Cantharides owe their value to the presence of a peculiar chemical principle, to which the name cantharidin has been given.
Cantharidin constitutes from z to r% of cantharides.
The British Pharmacopeia contains a large number of preparations of cantharides, but the only one needing special mention is the tincture, which is meant for internal administration; the small dose is noteworthy, five minims being probably the maximum for safety.