Generally, it is discovered through testing, meaning that a patient is usually already experiencing symptoms that have led him or her to see a medical professional. With so many factors that can cause a low white blood cell count, it is important to get comprehensive tests that can lead to an accurate diagnosis of the underlying cause. Stop taking plaquenil Hydroxychloroquine sulfatr alcohol Chloroquine treatment for malaria 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 is definitely not a good sign. It is an indication that something is going on in the body from something not so serious to potentially very serious. If the white blood cell count is low, the potential for infection increases since the body does not have enough power to fight the invading organisms. Infection Viruses can affect your bone marrow and cause low WBCs for a while. Severe infections, like blood infections, can lead to your body using up WBCs faster than it can make them. HIV kills a specific kind of white blood cell. Mostly produced by bone marrow, white blood cell count will initially rise when the body is attacked by a disease. White blood cells, also called , are the warriors of the immune system. Does plaquenil cause low white blood cell count Mayo Clinic Q and A What causes low white blood cell count?, What does a Low White Blood Cell Count Indicate? Plaquenil for asthma Low white blood cell count and cancer. White blood cells WBCs fight infections from bacteria, viruses, fungi, and other pathogens organisms that cause infection. When the neutrophil count gets this low, even the bacteria normally living in a person's mouth, skin, and gut can cause serious infections. Why It Occurs. Low white blood cell count and cancer MedlinePlus Medical.. Low White Blood Cell Count 6 Possible Causes for a Low WBC. Understanding Leukopenia Low White Blood Cell Count. Jan 27, 2014 · My rheumy has never mentioned that Plaquenil can cause a low white blood cell count, this is strange as mine has always been between 1.0 and 2.0, but mostly hovers around 1.2. Oct 07, 2019 · In some cases, a vitamin or mineral deficiency can cause the white blood cell count to drop significantly. This is commonly associated with a copper and zinc deficiency, though a low red and white blood cell count may also be due to a lack of iron or vitamin B12 in the diet. Summary. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more.