It may have both an anti-spirochaete activity and an anti-inflammatory activity, similar to the treatment of rheumatoid arthritis. And caution is required if patients have certain heart conditions, diabetes, psoriasis etc. Chloroquine boots Chloroquine cholesterol Hydroxychloroquine is a DMARD. The brand name is Plaquenil. What does Plaquenil do? Plaquenil relieves pain and swelling and prevents damage to joints. How long does Plaquenil take to work? Plaquenil works very slowly. In 1 to 3 months you should start to feel better. You may continue to get better for up to 1 year. The chloroquine/hydroxychloroquine-induced suppression of the synthesis of proinflammatory cytokines such as TNFα may be beneficial in decreasing the inappropriate immune activation characteristic of HIV infection. Chinese found an In Vitro activity of Plaquenil, and maybe in Vivo too but the live study is not yet published. A Professor in France got interested in doing a trial in Marseille hospital, and was agreed a few days ago to do so Pr Raoult; He is studying Plaquenil use in viral and intracellular. The most serious adverse effects affect the eye, with dose-related retinopathy as a concern even after hydroxychloroquine use is discontinued. The most common adverse effects are a mild nausea and occasional stomach cramps with mild diarrhea. Hydroxychloroquine enhance of inhibit immune Hydroxychloroquine Information for Providers AIDSinfo, Effects of chloroquine on viral infections an old drug. Chloroquine injection routePlaquenil for dermatomyositis muscle weaknessChloroquine resistance vivax Combining telbivudine Tyzeka and hydroxychloroquine may increase the risk of unexplained muscle pain, tenderness, or weakness because both drugs cause such side effects. Hydroxychloroquine suppresses the immune system and should not be combined with drugs that also suppress the immune system or live vaccines. Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria. Hydroxychloroquine / Plaquenil and the Covid-19 / Coronavirus.. Hydroxychloroquine Uses, Dosage & Side Effects -. Any one have any experience or info regarding pre-existing precancerous conditions and the effects of Plaquenil on the immune system. I see so much info on the net where some says that Plaquenil has very mild effect on immune system except for eye issues --- Other info says it is an immunosuppressant. Basically, the immune system is a bit out of control. 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. Mar 22, 2013 Howdy LadyDi, sorry you are having problems. Plaquenil is what is call an immune modifier. It is not a immune suppressant. Originally it was used to prevent Malaria. Then it was discovered to be effective for the treatment of Lupus. Plaquenil has the least amount of side affects in treating auto immune disorders.