Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Chloroquine pharmacokinetics Plaquenil candida Alopecia plaquenil I was referred to a Rheumy who put me on daily dose of 200 mg of hydroxychloroquine sulfate. I don’t have any side effects such as rash, blisters, etc. Call your doctor immediately or get emergency medical help if you experience any of the following serious side effects Any vision problems, such as reading difficulties, sensitivity to light, seeing light flashes or streaks, blurred distance vision, or other issues Hearing problems. More in Eye Health. 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. Hydroxychloroquine may also be used for purposes not listed in this medication guide. Hydroxychloroquine is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. What are the side effects of taking hydroxychloroquine HYDROXYCHLOROQUINE - ORAL Plaquenil side effects, medical uses, and., Plaquenil Hydroxychloroquine - Side Effects, Dosage. Mg per kg body wt hydroxychloroquine dosageMethotrexate hydroxychloroquine sulfasalazineHydroxychloroquine and prednisone Hydroxychloroquine may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies, or to become more depressed. If you or your caregiver notice any of these side effects, tell your doctor right away. This medicine may cause hypoglycemia low blood sugar. Hydroxychloroquine Oral Route Precautions - Mayo Clinic. Plaquenil Side Effects on Your Eyes and Vision. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. 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. You may report side effects to FDA at 1-800-FDA-1088Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345. PRECAUTIONS Before taking hydroxychloroquine, tell your doctor or pharmacist if you are allergic to it; or to other aminoquinolines e.g. chloroquine; or if. Fortunately, the problems seen by people taking this medication are usually very mild. Serious side effects are rare. Overall, most people who have any noticeable side effects from hydroxychloroquine experience diarrhea or nausea. These usually get better after the person adjusts to the medication, and taking the drug with food can help, as well.