I developed congestive heart failure and was taken off all RA meds except prednisone for a year. For years, I have been complaining to any of my doctors, who would listen, about the dizziness. I went back to my rheumatologist and he prescribed plaquenil again. In the beginning ( The first year or two) It really helped, with my symptoms, with lupus. This past two years, the dizziness has now, turned in to vertigo. Lupus medicine plaquenil Chloroquine phosphate and alcohol Wallace 1989 chloroquine Highlights for hydroxychloroquine. Hydroxychloroquine oral tablet is available as a brand-name drug and a generic drug. Brand name Plaquenil. Hydroxychloroquine comes only as a tablet you take by mouth. Hydroxychloroquine is used to treat malaria, lupus erythematosus, and rheumatoid arthritis. Plaquenil received an overall rating of 5 out of 10 stars from 4 reviews. See what others have said about Plaquenil, including the effectiveness, ease of use and side effects. Nov 09, 2018 Read Next Hydroxychloroquine Reviews About Drugs A-Z Drugs A-Z provides drug information from Everyday Health and our partners, as well as ratings from our members, all in one place. Now, that I have read this site, explanation of plaquenil, I think the mystery is solved. After taking it for 6 weeks, I had shortness of breath so I stopped taking it. Again, I have been trying to find out , what have been causing the vertigo. Reviews on hydroxychloroquine Plaquenil oral Reviews and User Ratings Effectiveness., Plaquenil Reviews Everyday Health Plaquenil sleepy Hydroxychloroquine is taken in tablet form, with or after food. Your doctor will advise you about the correct dose. Usually you will start on a full dose of 200–400 mg daily, and later your doctor may reduce this. When your condition is very well controlled you may be advised to take hydroxychloroquine only 2–3 times per week. Hydroxychloroquine Side-effects, uses, time to work. Hydroxychloroquine - Side Effects, Dosage, Interactions.. Plaquenil Reviews & Ratings at. Rheumatoid Arthritis. The action of hydroxychloroquine is cumulative and may require weeks to months to achieve the maximum therapeutic effect see CLINICAL PHARMACOLOGY. Initial adult dosage 400 mg to 600 mg 310 to 465 mg base daily, administered as a single daily dose or in two divided doses. Hydroxychloroquine, an antimalarial drug, is traditionally used in the treatment of SLE. Its effectiveness in treating APS has been previously questioned. In vitro and in vivo studies showed a beneficial effect of hydroxychloroquine on thrombosis 121–124. Side Effects. Drug information provided by IBM Micromedex Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.