Bocher613:
Your statement is hard to believe. I insist on references. Otherwise, I assume it is inaccurate. It is identical to claiming that chazzer is assur, but only the first time.
The Chofetz Chaim, in one of the maamorim in which he proclaims smoking as assur, highlights the submitting to an addiction as assur. One may be meshubad to HKB”H, not to anything or anyone else.