Cannabis has many physiological effects, including cardiovascular ones, which may be dangerous in people with heart disease. Cannabis taken in pregnancy is thought to be teratogenic. Chronic effects include those of the associated tobacco smoking. Cannabis has analgesic and other properties, which have been the subject of randomised trials. For example, it has been tried in multiple sclerosis, but so far has not been considered to be an improvement on existing treatments (Robson, 2001).
Was this article helpful?