A B.C. producer of medical marijuana is voluntarily recalling a batch of one of its products following a Health Canada inspection.
Health Canada says the recall by Greenleaf Medicinals is related to the company's production practices, which may affect its product known as "purple kush."
The Nanaimo, B.C., producer is advising clients to immediately stop using any marijuana from the shipment identified by batch number PK-10-20-13.
Greenleaf says it is working with other licensed producers to find a supply of purple kush for clients who use the product for medicinal purposes.
Health Canada did not disclose the problems with Greenleaf's production practices nor what adverse effects might occur from smoking the recalled pot.
But the federal department says producers are subject to compliance and enforcement measures similar to those that regulate producers of other controlled substances.
Licensed medical marijuana growers must meet strict security, control and reporting requirements, and are regularly inspected.
Dried marijuana is not an approved drug or medicine in Canada. Possession and use of marijuana remains illegal unless authorized under regulations with the support of a doctor or nurse practitioner, Health Canada said.