- About twenty-five species of squill have been described. Red squill and white squill varieties are distinguished by herbalists. No essential difference exists in the medicinal properties of the two kinds. The bulb has been used mainly as a stimulant, expectorant and diuretic. The fresh bulb is slightly more active medicinally than the dried bulb, but it also contains a sticky acrid juice that can cause skin inflammations.
- Squill seems to have cardiac effects similar to digoxin, although to a lesser degree, due to its poor absorption. Therefore, serious caution is indicated before its use.