Plaquenil is 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. Hydroxychloroquine eye Prednisone and hydroxychloroquine Low White Blood Cell Count Information Including Symptoms, Diagnosis, Treatment, Causes, Videos, Forums, and local community support. Find answers to health issues you can trust from Low White Blood Cell Count - Symptoms, Causes, Treatments A low white blood cell WBC count, known as leukopenia, can be caused by diseases such as leukemia, cancer, lupus, rheumatoid arthritis and some medications, according to the Mayo Clinic 3. Normal white blood count is 5,000 to 10,000 WBCs per microliter. There are two types of white blood cells neutrophils and lymphocytes 3. Summary White blood cell count decreased is found among people who take Plaquenil, especially for people who are female, 60+ old, have been taking the drug for 1 month, also take medication Enbrel, and have High blood pressure. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. Plaquenil causing low wbc count Plaquenil Uses, Dosage & Side Effects -, Symptoms of a Low White Blood Count Healthfully Malaria preventative chloroquine aralenDrug interaction chloroquine and ibuprofen White blood cells are manufactured in bone marrow — the spongy tissue inside some of your larger bones. A low white blood cell count usually is caused by Viral infections that temporarily disrupt the work of bone marrow; Certain disorders present at birth congenital that involve diminished bone marrow function Low white blood cell count Causes - Mayo Clinic. Will you have White blood cell count decreased with Plaquenil.. Plaquenil and White blood cell count decreased - eHealthMe. Hypoglycemia Plaquenil has been shown to cause severe hypoglycemia including loss of consciousness that could be life threatening in patients treated with or without antidiabetic medications see DRUG INTERACTIONS and ADVERSE REACTIONS. Patients treated with Plaquenil should be warned about the risk of hypoglycemia and the associated clinical signs and symptoms. A low platelet count is a blood disorder that can sometimes be serious. This article looks at platelets and their role within the body. Find out about the many possible causes of a low count. Side effects include irritability, headache, weakness, hair lightening or loss, stomach upset, nausea, dizziness, muscle pain, rash and itching. Rarely, hydroxychloroquine can affect the bone marrow leading to reduced white blood cells leukopenia or platelets thrombocytopenia and abnormal red blood cells anemia.