Ibn al-Tilmidh

Amīn al-Dawla Abu'l-Ḥasan Hibat Allāh ibn Ṣaʿīd ibn al-Tilmīdh (; 1074 – 11 April 1165) was a Christian Arab physician, pharmacist, poet, musician and calligrapher of the medieval Islamic civilization.
Ibn al-Tilmidh worked at the ʻAḍudī hospital in Baghdad where he eventually became its chief physician as well as court physician to the caliph Al-Mustadi, and in charge of licensing physicians in Baghdad. He mastered the Arabic, Persian, Greek and Syriac languages.
He compiled several medical works, the most influential being "Al-Aqrābādhīn al-Kabir", a pharmacopeia which became the standard pharmacological work in the hospitals of the Islamic civilization, superseding an earlier work by Sabur ibn Sahl.