Do you take Zantac for heartburn? Millions of us do. But the drug - whose generic name is ranitidine - has been recalled while authorities investigate whether it contains too much of a cancer-causing impurity. Meantime, the instructions are confusing: drug stores won't get new stock but they can sell what they have and patients shouldn't necessarily stop taking it. Libby Znaimer sat down with Pharmacist Billy Cheung to get some advice. AND Dr. Bob Bell is an orthopedic cancer surgeon who rose to head up the University Health Network before becoming the province's Deputy Minister of Health. In retirement, he's written a novel - a thriller about a new type of hip replacement that goes very wrong. He walked - very carefully - into our studios to talk about it - a few days after his own hip replacement!