It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes, which transmit the parasites that cause the infection, usually in tropical and subtropical parts of the world. Seroquel and plaquenil Dr gave me plaquenil to sample I only experienced side effects for the first month I was on it. Now I dont have any side effects and I take 400mg a day. I only worry that you being off of plaquenil completely for 2 weeks is going to back fire and start your inflamation again which will take a while for the plaquenil to kick back in. Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Find information about common, infrequent and rare side effects of Plaquenil Oral. For example, it may be combined with an antibiotic to treat chronic Q-fever, which humans usually catch from farm animals or raw milk. Plaquenil is used to treat other types of infections too. Plaquenil side effects dizziness Plaquenil Side Effects on Your Eyes and Vision, Plaquenil Side Effects - GoodRx Plaquenil and prednisone combination These side effects are nothing to be concerned about, but if they start to worsen, then you may seek medical help immediately. Remember that you have been prescribed this medication because your doctor believes that the benefits of Plaquenil are more significant than the side effects. Many people who take this drug do not experience any severe. Common Side Effects of Plaquenil - medications.center. Common and Rare Side Effects for Plaquenil Oral. Plaquenil and dizziness? Updated. I started on Plaquenil again. I stopped taking it the first time because my stomach hurt so bad. My rheumy said to just take a half a pill right now 100 mg. It's been about a week now and I am noticing dizziness, fatigue and just kind of weak. Can this be a side effect of Plaquenil when you first start? I don't recall it happening last time. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.