Canadian health officials say doctors are increasing the dosages of medical marijuana they prescribe for patients.

Health Canada said it appears doctors are unclear about the agency's maximum dosage recommendation. Some doctors said there was a perception the government's marijuana is not as potent as marijuana grown by patients or non-government suppliers, the Ottawa Citizen reported Tuesday.

The study by Les Etudes de marche Createc in Montreal found unanimous agreement among doctors for Health Canada to begin supplying dried marijuana to pharmacists. Doctors, however, suggested quality be improved and the price be reduced, the newspaper said.

Copyright 2008 by United Press International