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: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Chloroquine chemical name Pros of chloroquine Remove chloroquine phosphate Plaquenil and light sensitivity to eyes Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Plaquenil Side Effects by Likelihood and Severity INFREQUENT side effects. If experienced, these tend to have a Severe expression. A Disorder Of The Retina Of The Eye;. RARE side effects. When I increased to 200mg/day, I had strange side effects that caused me to go back to 100/day. Strange leg cramping, restless leg, nausea and anxiety. In a nutshell, at 200mg/day the side effects outweighed the benefits. At 100mg/day, I do not have 100% reduction in my symptoms, but I have enough of a reduction to want to continue the. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. How long do plaquenil side effects last Plaquenil Hydroxychloroquine - Side Effects, Dosage., Common and Rare Side Effects for Plaquenil Oral Chloroquine and proguanil price Side effects Hydroxychloroquine Plaquenil is one of the safest drugs in medicine. Serious side effects are rare & routine blood tests are not required. Allergy new skin rashes is unusual but it means ruling our future use. Commoner, usually mild, side effects are indigestion, ‘gurgly tummy’, diarrhoea & headache. Plaqunil rash -. PLAQUENIL Side Effects, Reviews by Patients -. Plaquenil - how long for side effects to subside?. Aug 29, 2014 This means that the side effects of Plaquenil are mild and infrequent compared with its potential benefits. As with any medication, allergic reactions including skin rashes and non-allergic reactions can occur. The side effect that is of greatest concern is retinal toxicity. If you are taking Plaquenil to treat an inflammatory condition or malaria, you should be aware of the side effects that may occur to your eyes and vision. Plaquenil hydroxychloroquine is in a class of drugs called disease-modifying anti-rheumatic drugs, which are used to decrease inflammation, pain and joint damage. Plaquenil toxicity isn’t even in the top 10, or the top 100” if you’re looking at incidence, he said. “It’s a pretty rare thing.” Nevertheless, he urged doctors to master the Academy’s new guidelines, because the effects from chloroquine and hydroxychloroquine, when they do occur, are severe and often irreversible.