Hydroxychloroquine blood levels : Useful?


Hydroxychloroquine blood levels in routine clinical care grant us the opportunity to identify non-adherence and impact upon it to improve SLE disease activity and potentially avoid more toxic immunosuppressive regimens.

Insufficient data exist presently regarding whether these blood levels will be instructive in identifying individuals at higher risk of retinal toxicity. Our results support the prescription of hydroxychloroquine based on actual (capped at 400 mg per day) rather than ideal body weight and did not demonstrate differences in blood levels in those who were obese or short stature.