Had symtoms of malar rash, joint pain especially in hands, fatigue , dry eyes and dry skin . Had a biopsy of skin and confirmed cutaneous lupus. I was put on Plaquenil and for the past 8 years I have been fine with it . Now this year I have been having things pop up that are related to a low immune system. Chloroquine cholesterol Hydroxychloroquine sulfate 200 mg fc tabs Compare hydroxychloroquine prices Plaquenil and difficulty breathing Plaquenil works by suppressing the immune system. Unfortunately you can't tell it to attack just the germs so you suppress all of its function to spare your healthy tissue- in your husband's case, his eyes, mouth, throat. NOTE Plaquinil and hydroxychloroquine are essentially the same drug. The same effects should be expected from both drugs. Dosage for Plaquenil. The adult dose of Plaquenil to suppress malaria is 400 mg on the same day each week. The pediatric weekly suppressive dosage is 5 mg/kg of body weight. The adult dose of Plaquenil to treat an acute attack of malaria is an initial dose of 800 mg followed by 400 mg in six to eight hours and 400 mg for two more days. My LLMD just precribed Plaquenil to me. so far so good tho I am concerned about the Vision issues with this medication but from everything I read its very rare to have Vision problems and nothing I read said that it was an Immune suppressant. Does anybody have any input concerning taking Plaquenil for long term therapy ? Some of my doctors think It is the Plaquenil causing it but then some say that Plaquenil is not an immunosuppressant drug that for some reason my immune system is out of wack . I tried to only take 100 mg to see if it would make a difference but I started with terrible joint pain and fatigue so I am back on the 200 mg a day. Hydroxychloroquine immune suppressant Does hydroxychloroquine suppress the immune system., Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses Retinal damage from plaquenilCan plaquenil cause heart problemsPlaquenil for joint pain in oedsAllergic to plaquenil A recent large study of people with cardiovascular disease found that hydroxychloroquine Plaquenil does not increase the risk of infection and methotrexate increases the risk of infection only slightly. The concern with immune suppression is that the virus could replicate more freely and cause more severe or extensive disease, says Dr. Winthrop. Coronavirus and Arthritis What You Need to Know.. Is Plaquenil an immumo-suppressant?. Hydroxychloroquine Plaquenil. Overall, most serious fungal infections are rare, but they do happen. They are most common among people with weak immune systems. People with certain health conditions may need to take medications with side effects that can weaken your immune system and put you at risk for fungal infections. Hydroxychloroquine received an overall rating of 7 out of 10 stars from 368 reviews. See what others have said about Hydroxychloroquine, including the effectiveness, ease of use and side effects. 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. It is taken by mouth.