morphinomane

Etymology
From, after.

Noun

 * 1) Someone who is addicted to morphine.
 * 2) * 1983,, Sebastian, Faber & Faber 2004 (Avignon Quintet), p. 985-6:
 * He was nodding slowly with the mandarin-like nodding of the morphinomane – though he was not one in real fact.