[3][4] Yuhanna ibn Bukhtishu‘ (or Bakhtishu‘) was a member of a prominent family of Nestorian Christian physicians originally from Jundishapur in Khuzastan who worked in Baghdad from the 8th through the 10th centuries.
Yuhanna ibn Bukhtishu was the illegitimate son of Jabril Ibn Bukhtishu (d. 870CE) who was physician to the caliphs al-Ma'mun, al-Wathiq and Al-Mutawakkil in Baghdad.
It is uncertain whether he was in fact the author of a treatise on materia medica that is attributed to him in the extant copies, of which The National Library of Medicine has one.
For the family of physicians, see Lutz Richter-Bernburg, "Boktisu" in Encyclopædia Iranica, ed.
(London: Routledge & Kegan Paul and Costa Mesa: Mazda, 1983 to present), vol.