Title: Drugs That Develop Lupus Anticoagulants

Category: Toxicology

Keywords: lupus, anticoagulants, thrombosis (PubMed Search)

Posted: 5/19/2011 by Fermin Barrueto (Updated: 3/4/2026)

The following list of medications have been associated with the development of Lupus Anticoagulants. Though it sounds like they should anticoagulate, they interfere with the Protein C system which means that they could induce a pro-thrombotic state - good short list to know:

Chlorpromazine (Thorazine

Procainamide (sorry Amal, I know you love that drug)

Hydralazine

Quinidine

Phenytoin