My husband has been taking Plaquinil (generic hydroxychloroquin) for almost 2 yrs., under a rheumatologist's care. He has Sjogren's Syndrome. He became very ill, and was diagnosed w/ viral meningial encephalitis. We were much later told that the Plaquinil had "lowered his tolerance to infection, as it is also an immuno-suppressant." In essence, the medicine allowed the viral infection to cross the barrier between his brain and blood/lungs. His/our question is as to whether he can or should EVER go back on the medication and risk exposure to further illnesses if it is true that Plaquinil or the generic for is, in fact, an immuno-suppressant and presents a serious health risk for him? (He was never told of that risk when he was put on the medication.)