The work of ibn-Sina (Avicenna, 980-1037) and Abu Mansur Muwaffak (late tenth century) indicates a special interest in chemically prepared substances of pharmaceutical value.    From Wordnik.com.  [Alchemy] Reference

The work of ibn-Sina (Avicenna, 980-1037) and Abu Mansur Muwaffak (late tenth century) indi - cates a special interest in chemically prepared sub - stances of pharmaceutical value.    From Wordnik.com.  [ALCHEMY] Reference

This attracted Ali ibn-Sina (aka Avicenna in West), who cured the sultan and wrote a remarkably accurate medical handbook, used in the Europe until the 19th century (a museum devoted to him is in the suburbs).    From Wordnik.com.  [Scott S. Smith: Art and Architecture of the Silk Road] Reference