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. Aralen online Can hydroxychloroquine be sold as brand name Leflunomide and hydroxychloroquine 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. 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. Retinal toxicity from hydroxychloroquine is rare, but even if the medication is discontinued, vision loss may be irreversible and may continue to progress. It is imperative that patients and physicians are aware of and watch for this drug’s ocular side effects. 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 immediate side effects Hydroxychloroquine Side Effects -, Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis How long does it take for hydroxychloroquine to work Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. seek immediate medical attention. Plaquenil Oral Uses, Side Effects, Interactions, Pictures, Warnings.. Hydroxychloroquine-Induced Retinal Toxicity - American.. Plaquenil Hydroxychloroquine - Side Effects, Dosage, Interactions - Drugs. Common side effects Nausea and diarrhea This can often can be combatted by taking Plaquenil with food or milk. Dizziness Precautions with this side effect Do not drive, use machinery. Cramps. Headache. Dry skin. Loss of appetite. Plaquenil is generally well-tolerated, but side effects are possible. Common side effects linked to Plaquenil include nausea and diarrhea. Taking the medication with food eases nausea for most people taking the drug. Less common side effects include skin rashes, hair thinning, and weakness. 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. Check with your health care professional if any of the following side effects continue or are bothersome.