Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Lysosomal acidification chloroquine Plaquenil alcohol consumption Chloroquine lysosomal inhibitor sigma SIDE EFFECTS. The following adverse reactions have been identified during post-approval use of PLAQUENIL or other 4-aminoqunoline compounds. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. 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. In this review, we analyze Hydroxychloroquine sulfate side effects by the time on the drug, gender and age of the people who have side effects while taking Hydroxychloroquine sulfate. The review is based on 11,814 people who have side effects while taking the drug from Food and Drug Administration FDA. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. What are some side effects of hydroxychloroquine Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria, Hydroxychloroquine Oral Route Precautions - Mayo Clinic What happens if you take hydroxychloroquine without foodHydroxychloroquine for rheumatoid arthritis reviews Side Effects. Hydroxychloroquine, like any medicinal drug, has some side effects which can be expected as your body adjusts to the new drugs in the system. A few of the common side effects which you are most likely to experience are listed below. Inform your doctor if they continue over a prolonged period and become severe Common side effects of Hydroxychloroquine. Common Hydroxychloroquine sulfate side effects a study from.. Hydroxychloroquine Side Effects - GoodRx. Consumer information about the medication HYDROXYCHLOROQUINE - ORAL Plaquenil, includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug HYDROXYCHLOROQUINE - ORAL. Incidence not known. Continuing ringing or buzzing or other unexplained noise in the ears. feeling of constant movement of self or surroundings. irritability. nausea. nervousness. nightmares. sensation of spinning. shakiness and unsteady walk. uncontrolled eye movements. unsteadiness, trembling, or. Hydroxychloroquine side effects. Hydroxychloroquine side effects may vary greatly from very mild side effects that go away with time to severe side effects like eye damage, ear damage, or heart problems. Some side effects may be experienced as the body adjusts to hydroxychloroquine but may diminish as the body becomes used to the drug.