[1][2] He was an influential medieval Irish physician and medical scholar of the Arabian school educated at universities on the Continent.
[7][8] Mac Duinnshléibhe was notable for being a prolific translator, creating and consolidating Irish medical, anatomical, pharmaceutical, and botanical terms.
[11] commenced the 12-year task of first translating the French physician Bernard of Gordon's extensive medical work, the Lilium medicine[12] (1320), from Latin to Irish.
Excerpts were included in the Catalogue of the Irish Manuscripts in the British Museum by Standish Hayes O'Grady and Robin Flower.
Gaulteris' De dosibus is a pharmaceutical tract and well used historical source, providing a concise introduction to the basic principles and operations of medieval European pharmacy.