Beer, which is prepared from barley, and is called 'Ab-i-Jaw', is haraam, but there is Ishkal in it being najis. But barley water which is medically prepared, and is called 'Maush- Shaeer', is Pak.
BEER
Meaning of BEER in English
Advanced Islamic English dictionary. Расширенный исламский словарь английского языка. 2012