Health Canada is warning consumers not to use the erectile dysfunction treatment Urat Madu, because it contains sildenafil — an undeclared pharmaceutical ingredient.

Patients with heart problems, those taking heart medication, or those at risk of stroke have the greatest chance of suffering side effects from sildenafil. Products containing sildenafil should be taken under a doctor's supervision. Possible side effects include vision loss, penile tissue damage and urinary tract infection.

Urat Madu is not authorized for sale in Canada, but may have been brought into the country by travellers or through online sales.

Consumers who have purchased the product are warned not to use it and to talk to a doctor if they have concerns about their health.

There have been no reports of adverse reactions associated with the product.

Consumers requiring more information can contact Health Canada at (613) 957-2991, or toll free at 1-866-225-0709.

Recall notice