The drug is, Pentosan Polysulfate Sodium. Elmiron, its trade name, is a carbohydrate derivative. It is a white, odorless powder. When used medicinally, the chemical comes in a capsule form.
Janssen Pharmaceuticals submitted a New Drug Application for Elmiron. FDA approved it on November 8, 2001. It is a semi-synthetically produced heparinlike macromolecular carbohydrate derivative indicated for the relief of pain or discomfort associated with interstitial cystitis.