One such commonly used medication for dermatologic and rheumatologic inflammatory conditions is hydroxychloroquine (Plaquenil), a chloroquine derivative. It is used to treat many diseases including malaria, rheumatoid arthritis and systemic lupus erythematosus. Plaquenil nail changes Chloroquine retinopathy mechanism Lc3 autophagy flux chloroquine Does plaquenil cause headaches Check with your doctor immediately if any of the following side effects occur Incidence not known. Anxiety attempts at killing oneself back, leg, or stomach pains black, tarry stools bleeding gums blistering, peeling, or loosening of the skin blood in the urine or stools blurred or decreased vision change in near or distance vision Oct 01, 2018 It is recommended that Chloroquine be discontinued if ocular toxicity is suspected and the patient should be closely observed given that retinal changes and visual disturbances may progress even after cessation of therapy. Central Nervous System Effects Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away Belly pain. Stomach cramps. Not hungry. Upset stomach or throwing up. Headache. Diarrhea. Change in color of skin. Change in color of hair. Hair loss. It is imperative that patients and physicians are aware of and watch for this drug’s ocular side effects. Retinal toxicity from hydroxychloroquine is rare, but even if the medication is discontinued, vision loss may be irreversible and may continue to progress. Chloroquine ocular side effects Aralen Chloroquine Uses, Dosage, Side Effects, Interactions, Warning, Chloroquine - FDA prescribing information, side effects and uses Hydroxychloroquine photosensitivity rashPlaquenil and acne Serious side effects and their symptoms can include the following blurred vision or other vision changes. ringing in your ears or hearing loss. angioedema, or rapid swelling of your skin. hives. mild or severe bronchospasm that causes trouble breathing. sore throat. unusual bleeding or bruising. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Chloroquine Indications, Side Effects, Warnings -. Hydroxychloroquine - Wikipedia. It is recommended that Chloroquine be discontinued if ocular toxicity is suspected and the patient should be closely observed given that retinal changes and visual disturbances may progress even after cessation of therapy. Central Nervous System Effects Tell your doctor if any of the following side effects become severe or don't go away Loss of appetite. Mild dizziness. Mild diarrhea. Clumsiness. Mild headache. Nausea or stomach cramps. Common side effects of Aralen include blurred vision, nausea, vomiting, abdominal or stomach cramps, headache, diarrhea, temporary hair loss, changes in hair color, or. muscle weakness.