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. Hydroxychloroquine cardiac side effects Azulfidine for rheumatoid arthritis vs plaquenil Is plaquenil an immunosuppressant Chloroquine Ocular Side Effects. Chloroquine is especially absorbed by the pigment cells in the eye. Eye side effects are serious and can result in loss of vision. The side effects may occur at anytime. The higher the dose and the longer the time of use makes it more likely to occur. Cardiac Effects Cases of cardiomyopathy resulting in cardiac failure, in some cases with fatal outcome, have been reported in patients treated during long term therapy at high doses with Chloroquine see ADVERSE REACTIONS and OVERDOSAGE. Monitor for signs and symptoms of cardiomyopathy and discontinue Chloroquine if cardiomyopathy develops. Only two third of patients comply with therapy, and most non-adherence to therapy are in patients under 80 kilograms in weight, likely because of an increased incidence of side effects. Common, nonocular, side effects of chloroquine and hydroxychloroquine include pruritus, headaches, dizziness, and gastrointestinal upset. 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. Ocular side effects of chloroquine therapy Rx Side Effects New Plaquenil Guidelines and More - American., Chloroquine - FDA prescribing information, side effects. Chloroquine proguanil combinationCan you buy plaquenil over the counterIs hydroxychloroquine used for fibromyalgia Ocular complications of rheumatological therapies may relate to 1 direct drug-specific toxic effects, such as chloroquine retinopathy, 2 indirect drug-specific side-effects, such as corticosteroid-induced ocular hypertension resulting in secondary glaucoma, and 3 drug non-specific complications relating to immunosuppression, such as opportunistic infections. Chloroquine Retinopathy - an overview ScienceDirect Topics. Chloroquine And Hydroxychloroquine Toxicity - StatPearls.. Chloroquine - Wikipedia. Side Effects Blurred vision, nausea, vomiting, abdominal cramps, headache, and diarrhea may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Remember that. Aralen chloroquine is an antimalarial drug used for the treatment of malaria and extraintestinal amebiasis. Common side effects are reduced hearing, tinnitus, nausea, vomiting, and diarrhea. Dosage, drug interactions, and pregnancy and breastfeeding safety are provided. Jun 23, 2015 The antimalarial agents hydroxychloroquine and the less common chloroquine possess anti-inflammatory, antithrombotic, and immunomodulatory effects. Hydroxy-chloroquine is used in the treatment of various conditions including malaria and, more commonly in the United States, systemic lupus erythematosus SLE and rheumatoid arthritis RA.