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. Chloroquine 500 mg 3 days in a row Where to buy chloroquine and proguanil Hydroxychloroquine sulfate is a colorless crystalline solid, soluble in water to at least 20 percent; chemically the drug is 2-4-7-Chloro-4-quinolylaminopentylethylamino ethanol sulfate 11. PLAQUENIL hydroxychloroquine sulfate tablets contain 200 mg hydroxychloroquine sulfate, equivalent to 155 mg base, and are for oral administration. Red urine. As with the yellow coloration of normal urine, red urine can range in intensity from a pink lemonade color clear light pink to that of tomato soup active thick bleeding to a deep opaque merlot color liquefying clot. Hematuria, or blood in the urine, is likely the most common cause of red urine. Dark urine decreased urination defective color vision diarrhea difficulty breathing difficulty seeing at night dizziness or fainting fast, pounding, uneven heartbeat feeling that others are watching you or controlling your behavior feeling that others can hear your thoughts feeling, seeing, or hearing things that are not there 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. Hydroxychloroquine urine color Urine Colors Chart Medications and Food Can Change Urine Color., Discoloration, Urine Urine Discoloration Dose of chloroquine phosphate fish tankHydroxychloroquine and naproxen Usage Hydroxychloroquine is usually taken with food or milk to prevent stomach upset. The dosage and length of treatment are based on your medical condition and response to therapy. In children. Hydroxychloroquine Oral Uses, Side Effects, Interactions.. Hydroxychloroquine Oral Route Side Effects - Mayo Clinic. High Creatinine Symptoms What May Occur When Your Levels Are Off. HYDROXYCHLOROQUINE hye drox ee KLOR oh kwin is used to treat rheumatoid arthritis and systemic lupus erythematosus. It is also used to treat malaria. This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions. Rarely, hydroxychloroquine can affect the bone marrow leading to reduced white blood cells leukopenia or platelets thrombocytopenia and abnormal red blood cells. Rare but potentially serious eye toxicity can occur. This toxicity affects a part of the eye called the retina and can lead to color blindness and even loss of vision. An ophthalmologist eye specialist often can detect changes in the retina that suggest toxicity before serious damage occurs. There is no Urine - abnormal color reported by people who take Plaquenil yet. This review analyzes which people have Urine - abnormal color with Plaquenil. It is created by eHealthMe based on reports from Food and Drug Administration FDA, and is updated regularly. eHealthMe has been monitoring drugs since 2008.