It does not work against certain types of malaria (chloroquine-resistant). The United States Center for Disease Control provides updated guidelines and travel recommendations for the prevention and treatment of malaria in different parts of the world. Where is chloroquine effective Chloroquine and doxycycline Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria 2. Plaquenil is also used for long-term treatment of autoimmune diseases such as rheumatoid arthritis RA and systemic lupus erythmatosis. According to the Mayo Clinic, it can take up to six months' constant use before an effect is seen in RA 1. Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine I just had major spine surgery in November. The surgeon had me check with my rheumy about stopping Plaquenil and I was told to continue it, or just stop it the day of surgery then get right back on, I asked what would happen if I stopped for a week and was told I'd risk going into a flare. I stayed on it and surgery went OK. This medication is also used, usually with other medications, to treat certain auto-immune diseases (lupus, rheumatoid arthritis) when other medications have not worked or cannot be used. Discuss the most recent information with your doctor before traveling to areas where malaria occurs. Hydroxychloroquine bleeding and surgery Perioperative Management of Medications Used in the Treatment., Plaquenil Side Effects Common, Severe, Long Term - Hydroxychloroquine renal dosing Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking hydroxychloroquine and call your doctor at once if you have trouble focusing, if you see light streaks or flashes in your vision, or if you notice any swelling or color changes in your eyes. Hydroxychloroquine - Advanced OB-GYN - Syracuse, NY.. Stopping Plaquenil before surgery Lupus Forums at The.. DAILY MEDICATION USE AND YOUR UPCOMING SURGERY. Plaquenil Hydroxychloroquine is used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus & others. Hydroxychloroquine is a quinoline medicine 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. This medicine is not effective against all strains of malaria. Surgery. There is no surgical therapy. Prognosis. In general, hydroxychloroquine and chloroquine retinopathy are not reversible, and even following drug cessation, cellular damage appears to continue for a certain period of time. However, the earlier the retinopathy is recognized, the greater the chance of visual preservation.