D-mannose is a natural product, rather than a prescription medication, and is available in health food stores, according to WebMD. Other brand names for the product include Mannose, D-Manosa, Curubinose and Seminose. D-mannose is used for preventing urinary tract infections and for treating a certain inherited metabolic disorder.
According to WebMD, there is no standard range of dosage for D-mannose that has been established through scientific testing by the medical community. Recommended doses vary according to a range of conditions, including age and overall health. Consumers should to adhere to label instructions carefully and consult with pharmacists or other medical professional before using the product.