FDA 还没查清，我家也有两瓶Costco买的Zantac，吃过几颗。有在吃的，先停吃，等结果

A substance that could cause cancer has been found in some ranitidine heartburn and ulcer medicines, including the brand-name drug Zantac, and the source of this contamination is being investigated, the U.S. Food and Drug Administration says.