Derm Net NZ Medical Editor: Dr Delwyn Dyall-Smith, Dermatologist, Wagga Wagga, NSW, Australia. However, following an identical dose of hydroxychloroquine and chloroquine, tissue levels of chloroquine are 2.5 times those of hydroxychloroquine. Derm Net NZ Editor in Chief: Adjunct Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand. Hydroxychloroquine is preferred due to its safer profile. Plaquenil causing alopecia Chloroquine lentivirus production Hydroxychloroquine is a quinoline medicine used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. We read the article by Petri et al 1 with great interest. This study explored the association between hydroxychloroquine blood level and the frequency of hydroxychloroquine retinopathy and the authors concluded the clinical value of monitoring hydroxychloroquine blood levels in predicting retinopathy. However, some issues remain to be resolved. An example protocol for planned blood test monitoring of patients on DMARDs, lithium, amiodarone and mesalazine using SystmOne Target population All patients on established maintenance doses of DMARDs azathioprine, chlorambucil, ciclosporin, hydroxychloroquine, leflunomide, Hydroxychloroquine is considered safer than chloroquine during pregnancy and lactation. If there is a of hydroxychloroquine, although studies have not usually confirmed this clinical impression. Hydroxychloroquine monitoring bloods Study Finds Blood Levels of Plaquenil may be Important., Hydroxychloroquine Blood Levels Predict Hydroxychloroquine. Lysosomal inhibitor chloroquineSide effects of hydroxychloroquine medication Regarding hydroxychloroquine levels and lupus activity, Costedoat- Chalumeau et al measured whole blood levels in 143 individuals taking a standard dose of 400 mg per day and found a lower hydroxychloroquine level in those with active disease and that lower baseline levels were predictive of disease flare. Hydroxychloroquine Blood Levels in SLE Clarifying dosing.. A protocol for drugs that require regular monitoring. Hydroxychloroquine Plaquenil RheumTutor. The Hydroxychloroquine HCQ Test Measuring Drug Levels in Whole Blood AVISE ® HCQ is an advanced drug monitoring test that provides accurate measurement of hydroxychloroquine HCQ levels in whole blood to help physicians assess their patients' exposure to hydroxychloroquine therapy. Hydroxychloroquine has been used relatively safely in pregnancy. The risks of stopping treatment should be weighed against the small possible risk to the unborn child. 2 Breast feeding is contraindicated.* *Local guidelines currently in development Hydroxychloroquine can be taken with a glass of milk or a meal to decrease nausea. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take hydroxychloroquine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.