Libby Znaimer is joined by Pharmacist, Billy Cheung.

It is one of the most common drugs that millions of Canadians buy over the counter and take for heartburn and acid reflux. Now, there are worries that Ranitidine- which is its generic name- contains an impurity that can cause cancer. The drugs have been recalled in the US but the situation here is really confusing and keeps changing by the day! Health Canada said it was assessing the problem. This week, it has issued a recall.

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