I purchased this product fully expecting to avail myself of all the contents. Sadly, I could use only the test strips. The active ingredient Methenamine, an antibacterial, is contraindicated for people suffering from liver disease. I would not have known that until I spoke to the on-call doctor after testing positive. That's on me—you MUST read the fine print—which is very, very small on the package. There are several conditions that may prevent you from using this product. While the contraindications are noted on the website, few people read the entire entry before purchasing.