CHLOROQUINE AND LEFLUNOMIDE
The manufacturers say that the concurrent use of leflunomide and chloroquine or hydroxychloroquine has not yet been studied, but it would be expected to increase the risk of serious adverse reactions (haematological toxicity or hepatotoxicity).
The manufacturers advise avoiding concurrent use. As the active metabolite of leflunomide has a long half life of 1 to 4 weeks a washout with colestyramine or activated charcoal should be given if patients are to be switched to other DMARDs.
The manufacturers advise avoiding concurrent use. As the active metabolite of leflunomide has a long half life of 1 to 4 weeks a washout with colestyramine or activated charcoal should be given if patients are to be switched to other DMARDs.