"There was little evidence of dependence in our survey population. At some point, 0.6% (3 people) felt addicted to or dependent upon SD, while 1.2% (6) reported strong cravings for SD. The DSM-IV-R psychiatric diagnostic system in the United States classifies people as drug dependent based on seven criteria. Of the three who reported feelings of addiction or dependence on SD, only one endorsed any DSM-IV criteria (strong cravings and using more SD than planned). When asked about these signs and symptoms individually, 2 additional respondents (0.4%) reported three dependence criteria. None of these individuals reported more than 2 of 13 after-effects characteristic of mu-opioid withdrawal (such as increased sweating, gooseflesh, worsened mood, and diarrhea)."

Source

Baggott, Matthew J.; Earth Erowid; Fire Erowid; Galloway, Gantt P.; Mendelson, John, "Use patterns and self-reported effects of Salvia divinorum: An internet-based survey," Drug and Alcohol Dependence (Philadelphia, PA: College on Problems of Drug Dependence, October 2010), p. 4.