Conversation so far:
Did Bobby Womack ever try to be clean?
Towards the end of the 1980s, Bobby Womack went into a rehabilitation center to get over his cocaine addiction, which he said he conquered.
What was Bobby Womack addicted to?
Bobby Womack's cocaine use turned into an addiction by the late 1970s.

Question: Was he addicted to anything else?
Self-contained rewrite: Was Bobby Womack addicted to anything else besides cocaine?