Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Ocular safety of hydroxychloroquine Hydroxychloroquine eyesight How to get off hydroxychloroquine 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. Additionally, some people experience anemia and vision changes or even vision loss, but this is quite rare. Common side effects may include headache, dizziness, ringing in your ears; nausea, vomiting, stomach pain; loss of appetite, weight loss; mood changes, feeling nervous or irritable; skin rash or itching; or. hair loss. Sep 13, 2019 For the Consumer. 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 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. Hydroxychloroquine 400 mg side effects Hydroxychloroquine Oral Route Side Effects - Mayo Clinic, Hydroxychloroquine - Side Effects, Dosage, Interactions - Drugs. Chloroquine brazilDoes plaquenil cause melanomaSarcoidosis hydroxychloroquine blood levelsHydroxychloroquine sulfate adverse effects The more common side effects that can occur with hydroxychloroquine include headache. dizziness. diarrhea. stomach cramps. vomiting. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Hydroxychloroquine Side Effects Common, Severe, Long Term.. Hydroxychloroquine Plaquenil -. Each white-to-off-white, capsule-shaped tablet debossed "HCQS" on one side contains 200 mg of hydroxychloroquine sulfate. Nonmedicinal ingredients colloidal silicon dioxide, dibasic calcium phosphate, hypromellose, macrogol, magnesium stearate, polysorbate, polyvinyl alcohol, pregelatinized starch, titanium dioxide, and talc. What are the possible side effects of hydroxychloroquine? Side effects are uncommon; however, a few people may develop one of the following rash, indigestion, diarrhoea, headache, blurred vision, cramps or muscle weakness, darkening of the skin, or bleaching of the hair. Hydroxychloroquine can aggravate pre-existing psoriasis. Then, 6.5 mg per kg of body weight taken 6 hours, 24 hours, and 48 hours after the first dose. However, dose is usually not more than 800 mg for the first dose and not more than 400 mg for the next doses. For treatment of arthritis Adults—At first, 400 to 600 milligrams mg taken as a single dose or in two divided doses once a day.