Change in effects from marijuana: a five- to six-year follow-up
Weller, R.A.; Halikas, J.A.
Journal of Clinical Psychiatry 43(9): 362-365
1982
ISSN/ISBN: 0160-6689 PMID: 6981643 Document Number: 190108
A five- to six-year follow-up study of 97 regular marijuana users in a large Midwestern city showed that the effect of marijuana intoxication remained fairly stable over time. However, continued use of the drug was associated with a decrease in pleasurable effects. Undesirable effects persisted but apparently did not discourage continued use. Decreases found in some undesirable effects (tachycardia, lightheadedness, and dry mouth) raised the possibility that some degree of tolerance had developed.