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. Chloroquine phosphate usp How do you know if plaquenil is working Can plaquenil affect menstruation In rare cases, Plaquenil can cause cardiomyopathy, a chronic disease of the heart muscle. If you're taking Plaquenil for an autoimmune condition, your symptoms should begin to improve after a few. How to tell if the drug is working For rheumatoid arthritis, you should have reduced joint inflammation and you should be able to move better within 6 months of starting the medication. For lupus. In some cases, higher doses can be used. It is recommended one tablet twice daily if taking more than one tablet. It is recommended to be taken with food. Symptoms can start to improve in one to two months, but it may take up to six months before the full benefits of this medication are experienced. 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. Plaquenil 6 months Taking Plaquenil for Rheumatoid Arthritis, Hydroxychloroquine Side Effects, Dosage, Uses, and More Chloroquine phosphate tablets ip 500mgHydroxychloroquine sulfate tablets usp 200 mgHydroxychloroquine genericWhhat kind of damage does plaquenil cause to the eyePlaquenil pupil change Taking Plaquenil. Plaquenil is available in 200 mg oral tablets. The usual dose is between one and two tablets per day 200 to 400 mg per day. When Plaquenil works, most patients start to feel improvement after 8-12 weeks. The maximum effect can take 6-12 months. Plaquenil – RheumInfo. Hydroxychloroquine Plaquenil. Plaquenil What You Need to Know - Kaleidoscope Fighting Lupus. Plaquenil takes quite a long time to get to its peak effectiveness depending on what you read, anywhere from 3 months to a year. Unless you are having significant side effects, try to give it at least 6 months before you decide it doesn't work for you. Find user ratings and reviews for Plaquenil oral on WebMD including side effects and drug interactions, medication effectiveness, ease of use and satisfaction. 25-34 on Treatment for 1 to 6. Immunodeficiency disorders is found among people who take Plaquenil, especially for people who are female, 60+ old, have been taking the drug for 6 - 12 months, also take medication Humira, and have Mixed connective tissue disease.