 I think it's for people who have low potassium, the capsules. They're for people who have low potassium, which I got to tell my girlfriend because I think she's taken this. They're packed in bottles of 100 and 500, and they have the batch numbers. The FDA has posted batch numbers for Glenmark and Bluepoint on their website. So you better stop using this if you have it, okay? Contact your physician ASAP.