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. What type muscle weakness with plaquenil Hydroxychloroquine and tonic water Doxycycline plaquenil lyme Serious Side Effects of Plaquenil. If you are taking Plaquenil long-term, such as for an autoimmune condition, your doctor should regularly check you for potential serious side effects. The Hydroxychloroquine HCQ Test Measuring Drug Levels in Whole Blood. AVISE ® HCQ is an advanced drug monitoring test that provides accurate measurement of hydroxychloroquine HCQ levels in whole blood to help physicians assess their patients' exposure to hydroxychloroquine therapy. The AVISE HCQ test is available as a venous test and via a AVISE ® Touch low volume capillary device test. In fact, the hypoglycemic effect of hydroxychloroquine has been identified as its potential side-effect, but because of no another concomitant effects on other metabolic components and body organs, this effect can be beneficially used for controlling glucose and also for progression of prediabetes to diabetes state. 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 side effects test Plaquenil Side Effects Common, Severe, Long Term -, Hydroxychloroquine Test - Hydroxychloroquine Side Effects. Chloroquine scheduleChloroquine phosphate overdoseDoes plaquenil helpPlaquenil and flagyl togetherPlaquenil for connective tissue disease However, in some people hydroxychloroquine can cause skin rashes, especially those made worse by sunlight. feeling sick nausea or indigestion. diarrhoea. headaches. bleaching of the hair or mild hair loss. tinnitus ringing in the ears. visual problems. Hydroxychloroquine Side-effects, uses, time to work. The effect of hydroxychloroquine on glucose control and.. What can Hydroxychloroquine Plaquenil do to my eyes?. May 24, 2019 What are some other side effects of Hydroxychloroquine? All drugs may cause side effects. However, many people have no side effects or only have minor side 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 Dizziness. Headache. Feeling nervous and excitable. Developed resistance to hydroxychloroquine and chloroquine. Your doctor has prescribed hydroxychloroquine also called Plaquenil® to help manage your condition. It is a very safe and effective drug but, like all medicines, it can cause side effects. Hydroxychloroquine retinopathy It is known that some people who take Hydroxychloroquine is a well tolerated medication for various rheumatologic and dermatologic conditions. Its main side effects are gastrointestinal upset, skin rash, headache, and ocular toxicity. Within the eye, hydroxychloroquine negatively impacts the cornea, ciliary body, and retina.