Please review the following URL and make sure that it is spelled correctly. Applies to hydroxychloroquine: oral tablet Along with its needed effects, hydroxychloroquine (the active ingredient contained in Plaquenil) may cause some unwanted effects. Hydroxychloroquine serious side effects Chloroquine overdose treatment More common side effects. The more common side effects that can occur with hydroxychloroquine include headache; dizziness; diarrhea; stomach cramps; vomiting; Mild side effects may go away within. Hydroxychloroquine SULFATE. Uses. Hydroxychloroquine is used to prevent or treat malaria infections caused by mosquito bites. It does not work against certain types of. Side Effects. Precautions. Interactions. More in Eye Health. If you are taking Plaquenil to treat an inflammatory condition or malaria, you should be aware of the side effects that may occur to your eyes and vision. Plaquenil hydroxychloroquine is in a class of drugs called disease-modifying anti-rheumatic drugs, which are used to decrease inflammation, pain and joint damage. 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. Although not all of these side effects may occur, if they do occur they may need medical attention. Plaquenil medicine side effects Plaquenil Hydroxychloroquine Side effects, Images, Uses, Dosage., Hydroxychloroquine Oral Uses, Side Effects, Interactions. How to take chloroquine phosphate 500 mgChoi et al 2014 chloroquine paclitaxelHigh risk medication use plaquenilHydroxychloroquine prophylaxisChloroquine cancer clinical trial Tell your doctor if any of the following side effects, as they may be indications of a more serious reaction Headache. Loss of appetite. Dizziness. Nausea. Diarrhea, vomiting, or stomach pain. Skin rash. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Plaquenil Side Effects on Your Eyes and Vision. Plaquenil Indications, Side Effects, Warnings -. Severe side effects may include allergic reactions. It appears to be safe in pregnancy but this use has not been well studied. Hydroxychloroquine is in the antimalarial and 4-aminoquinoline families of medication. Hydroxychloroquine was approved for medical use in the United States in 1955. 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. What are the side effects of hydroxychloroquine Plaquenil? Side effects include irritability, headache, weakness, hair lightening or loss, stomach upset, nausea, dizziness, muscle pain, rash and itching.