World Health Organization (WHO)

Tienilic acid, a diuretic agent with uricosuric and antihypertensive activity, was introduced in 1976. By 1979 its use had been associated with cases of hepatic toxicity, some of which were fatal, which led to the withdrawal of the drug in most countries in which it was marketed. In France, however, precautions regarding the use of tienilic acid were issued by the Pharmacovigilance Commission and the drug remained available for another decade. In 1991, it was eventually also withdrawn there since cases of hepatitis, some of which were fulminant, had continued to occur.

Biochem/physiol Actions

Tienilic Acid (Ticrynafen) is a P450 inhibitor, a specific suicide substrate for CYP2C9 and CYP2C10. It was once used as a loop diuretic drug with uric acid-lowering (uricosuric) actvity, but was removed from market because of hepatotoxicity.

Definition

ChEBI: An aromatic ketone that is 2,3-dichlorophenoxyacetic acid in which the hydrogen at position 4 on the benzene ring is replaced by a thiophenecarbonyl group. A loop diuretic used to treat hypertension, it was withdrawn from the market in 1982 due to links wi h hepatitis.

Brand name

Tienilic Acid is INN and BAN;Anp 3624;Diflarex;Fr 3068;Selcryn;Skf-62698;Ticrynafen;Ticrynapen.