The following notes refer to the related species Ilex aquifolium which has been used in Traditional Herbal Medicine: Holly is little used in modern herbalism. The leaves are diaphoretic, expectorant, febrifuge and tonic. The berries are violently emetic and purgative.

https://pfaf.org https://pfaf.org/user/Plant.aspx?LatinName=Ilex+aquifolium