Papaverine is an opium alkaloid antispasmodic drug, used primarily in the treatment of visceral spasm and vasospasm and occasionally in the treatment of erectile dysfunction. It is used in the treatment of acute mesenteric ischemia.

Pentosan polysulfate (PPS) is a medication used for interstitial cystitis and osteoarthritis. It is a semi-synthetic polysulfated xylan.

Tamsulosin is a medication used to treat symptomatic benign prostatic hyperplasia and chronic prostatitis and to help with the passage of kidney stones.