Skip to main content

Cannabis plants at Tilray, a medical marijuana grow-op in Nanaimo, B.C., on August 14, 2014.

John Lehmann/The Globe and Mail

Hundreds of medical marijuana users in British Columbia have been told the pot they thought could help them might harm them because it's contaminated with bacteria.

Health Canada says Tilray, a Nanaimo supplier, is telling clients to stop using its Sativa House Blend, Hybrid House Blend and Indica House Blend.

The pot was contaminated with enterobacter, which is not associated with an acute health risk, said Joshua Eades, Tilray's chief science officer.

Story continues below advertisement

He said the company doesn't know where the bacteria originated.

"We are undergoing a top-to-bottom, rigorous review of our sanitation practices and procedures," he said. "And we'll be doing a root-cause analysis to understand what caused these results."

Health Canada and Tilray say there have been no reports of adverse reactions.

The law governing the production of medical marijuana says it must be manufactured to the same standards as any medicine.

This is the third recall of medical marijuana in the past year.

Last April, another Nanaimo company, Greenleaf Medicinals, recalled one of its products because of unspecified issues with its production. Last month, an Ontario company recalled some product because it was stronger than its label indicated.

Health Canada's regulations say medical marijuana must be tested for biological contaminants and levels of its active ingredient, tetrahydrocannabinol (THC).

Story continues below advertisement

Eades said the Health Canada inspections take place monthly.

"Health Canada sets very stringent quality control standards," he said. "We test every batch that's produced."

Eades said between 300 and 400 people have been affected by the recall and the company has contacted 90 per cent of them.

Tilray is telling clients to destroy the recalled product by mixing it with water, then cat litter or coffee grounds, and then to dispose of it with household garbage.

The company will give clients a credit for replacement costs.

Report an error
Due to technical reasons, we have temporarily removed commenting from our articles. We hope to have this fixed soon. Thank you for your patience. If you are looking to give feedback on our new site, please send it along to feedback@globeandmail.com. If you want to write a letter to the editor, please forward to letters@globeandmail.com.

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff.

We aim to create a safe and valuable space for discussion and debate. That means:

  • Treat others as you wish to be treated
  • Criticize ideas, not people
  • Stay on topic
  • Avoid the use of toxic and offensive language
  • Flag bad behaviour

Comments that violate our community guidelines will be removed.

Read our community guidelines here

Discussion loading ...

Cannabis pro newsletter