Procter & Gamble is voluntarily recalling two types of its Oral-B mouthwash in Canada because of a possible microbial contamination.

Procter & Gamble says the microbial level poses virtually no risk to healthy people but says those with severely weakened immune systems may be susceptible to health problems.

The two products being recalled are Oral B Anti-Cavity Dental Rinse- Alcohol Free (NPN 02129930) and "Oral-B Anti-Bacterial with Fluoride - Alcohol Free Daily Use Mouthrinse" (DIN 02130823).

Health Canada is monitoring the recall.

Anyone who believes they have had a reaction to these products is urged to call Health Canada at 1-866-234-2345.