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. Eye test said hydroxychloroquine Chloroquine phopshate usp Description and Brand Names. Drug information provided by IBM Micromedex US Brand Name. Plaquenil; Descriptions. Hydroxychloroquine is used to treat malaria. It is also used to prevent malaria infection in areas or regions where it is known that other medicines eg, chloroquine may not work. The following is a list of possible side-effects that may occur from all constituting ingredients of Plaquenil is not a comprehensive list. These side-effects are possible, but do not always occur. Some of the side-effects may be rare but serious. I take name brand to prevent side effects of red, warm, swollen, painful hands + nausea/dizziness, hair loss, etc. Each time I try going back to generic, side effects return immediately. I'm not one to comment but I read so many reviews that sounded like either my ups or downs, so I want to encourage ppl to stick w/this med & try name brand though expensive if having bad side effects w/generic. If you notice any other effects, check with your healthcare professional. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: Other side effects not listed may also occur in some patients. Plaquenil side effects reviews Plaquenil hydroxychloroquine Basics, Side Effects & Reviews., Plaquenil Tablet - Uses, Side-effects, Reviews, and. Hydroxychloroquine side effects retinopathy Consumer ratings and reviews for PLAQUENIL page 3. Includes 654 patient ratings with average score of 3.2, comments, side effects, dosage, sex, age, time taken. PLAQUENIL Side Effects, Reviews by Patients page 3 -. Plaquenil Reviews & Ratings at. Hydroxychloroquine Side Effects Common, Severe, Long Term.. Hydroxychloroquine side effects. Hydroxychloroquine side effects may vary greatly from very mild side effects that go away with time to severe side effects like eye damage, ear damage, or heart problems. Some side effects may be experienced as the body adjusts to hydroxychloroquine but may diminish as the body becomes used to the drug. Aug 14, 2017 Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term. The New Zealand Dermatological Society recommends that to decrease the risk of retina damage, no more than 200mg of Plaquenil should be taken a day, and a dose of 400mg per day should be taken no longer than a few weeks. The benefits of Plaq take from 2 - 6 months. However the side effects / stomach issues join the party right at the start. From day 1 or 2 this med made me, well, kinda queasy. I was not nauseous, but I was not interested in eating. Then the real fun began -- massive gas, and oh yeah the diarrhea. Imodium AD was the way I got through the day.