Fainting can also occur. These effects may carry a risk for people with pre-existing cardiac disease. Respiratory system . The tar from a cannabis cigarette contains higher levels of some carcinogens than tobacco smoke. Immune system, hormones and reproduction .
Cannabis also has immunosuppresant and endocrine effects.
Chronic cannabis use appears to carry reproductive risks, both to the mother during pregnancy and childbirth and to the foetus and new born baby, although these areas need further study. Chronic cannabis use can result in tolerance, dependence and withdrawal effects. Information For further details or press copies of the full paper, contact Deborah Hart or Vanessa Hudson in the External Affairs Department.