United Kingdom, Oct. 19 -- Eric Dane has given a brutally honest account of his battle with drug addiction while he was working on Grey's Anatomy.

The late actor lifted the lid on his life in Hollywood in his memoir My Book of Days: A Memoir in Moments - which he wrote prior to his death in February aged 53 after being diagnosed with degenerative neurological disorder ALS - and Eric revealed he looked "gaunt" and his attitude changed as he struggled with alcohol and prescription drug abuse during a 2008 relapse while making the medical drama.

In an extract of the book published by PEOPLE, Eric recalled: ""My body goes to s***. I drop to 170 [pounds], my face caves in, my eyes cloud, I look gaunt.

"I look like a drug addict. You can tel...