Phenacetin (Acetophenetidin) is a phenylacetamide that was formerly used in ANALGESICS but nephropathy and METHEMOGLOBINEMIA led to its withdrawal from the market.

Gliotoxin, a Wnt signaling pathway inhibitor, induces growth inhibition and apoptosis in multiple colorectal cancer cell lines with mutations of the Wnt signaling pathway.

Antipyrine (Phenazone), an antipyretic and analgesic, has been given as ear drops and by mouth. Antipyrine is frequently used to test the effects of other diseases or drugs on drug-metabolizing enzymes in the liver.

Oxaprozin (Oxaprozinum) is a Nonsteroidal Anti-inflammatory Drug. The mechanism of action of oxaprozin is as a Cyclooxygenase Inhibitor. The chemical classification of oxaprozin is Nonsteroidal Anti-inflammatory Compounds.

Guaiacol (2-Methoxyphenol) is a precursor to various flavorants, such as eugenol and vanillin. Its derivatives are used medicinally as an expectorant, antiseptic, and local anesthetic. It also can be used as an indicator in chemical reactions that produce oxygen. When oxygen binds to it, the complex turns yellowish brown and absorbs light maximally at about 470 nm.