A 'joint' problem: Investigating marijuana and tobacco co-use

(Medical University of South Carolina) A survey of marijuana and tobacco co-users by Medical University of South Carolina investigators found that co-users with high degree of interrelatedness between their use of the two substances had greater tobacco dependence and smoked more cigarettes per day. However, the finding of a strong link between the two substances was not universal. These findings, reported in Addictive Behaviors, suggest that highly personalized treatments are needed for co-users...