If you believe you are seeing this page in error please contact us. 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. Chloroquine ineffective on exoerythrocytic Plaquenil and adrenal insufficiency Symptoms of retinal damage from plaquenil Hydroxychloroquine is an antimalarial drug which is relatively safe and well-tolerated agent for the treatment of rheumatoid arthritis. Chloroquine is another antimalarial agent that is also sometimes used. 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. Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine-sensitive malaria. Other uses include treatment of rheumatoid arthritis, lupus, and porphyria cutanea tarda. This medicine is not effective against all strains of malaria. Malaria is common in areas such as Africa, South America, and Southern Asia. Hydroxychloroquine and neutropenia Hematological Disorders in Patients with Systemic Lupus., Hydroxychloroquine Uses, Dosage & Side Effects - Chloroquine blood stageFlu shot and plaquenil RARE side effects. If experienced, these tend to have a Severe expression. Abnormal Liver Function Tests. Acute Liver Failure. Acute Pustular Eruptions On Skin. Bronchospasm. Decreased Blood Platelets. Decreased White Blood Cells. Common and Rare Side Effects for Hydroxychloroquine Oral. Hydroxychloroquine - Wikipedia. Hydroxychloroquine-Induced Agranulocytosis JAMA.. Numerous drugs have been associated with neutropenia. The highest risk categories are antithyroid medications, macrolides, and procainamides. As stated above, many drugs act by an immune-mediated mechanism. However, some drugs appear to have direct toxic effects on marrow stem cells or neutrophil precursors in the mitotic compartment. Our review considered neutropenia, lymphopenia, AIHA, thrombocytopenia, TTP and myelofibrosis. According to the literature, mild neutropenia is a common finding in SLE and requires no specific therapy. However, patients with severe neutropenia with opportunistic infection or the risk of such infection can be successfully treated with G-CSF. Introduction Hydroxychloroquine is a Aminoquinoline derivative which is widely used for treatment of malaria, rheumatoid arthritis and lupus besides many other autoimmune diseases. Though neutropenia is listed as a potential side effect, there is no reported case in the literature. We present a very rare presentation of hydroxychloroquine toxicity.