Aperient.

Get a chemist to rub down a medium-size croton bean with about 40 grains of sugar of milk, and divide into four powders. One of these powders given in milk usually suffices. Large cats often require two powders. The dose might be repeated if necessary.

Dose, when drops are ordered, 2 drops.
Trituration is ordered, 2 to 3 grains.

Fonte: Cats