Health Canada has been criticised for not issuing a public update about the drug sooner.
The product’s prescribing guidelines now indicate that taking the drug can lead to strange behaviours, including hallucinations, delirium and self-injury.
Among those taking the drug who have exhibited dangerous behaviour, there have been 25 reported deaths around the world in the most recent one-year period.
Health Canada said it has “not received any such reports” of abnormal behaviour among young people in Canada.
But it has asked Tamiflu’s producer,
Roche, to include updated information about possible adverse reactions on its Canadian labels.
Auditor-General Sheila Fraser’s report released Tuesday included criticism that Health Canada doesn’t issue timely and accurate health warnings to the public on a variety of issues.
Health Canada representatives said mismanagement and insufficient funds in a variety of areas, including drug programmes, could jeopardise public health and safety.