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. Hydroxychloroquine memory loss A patient will begin taking hydroxychloroquine for rheumatoid arthritis Get medical help right away if you have any very serious side effects, including chest pain, fast/irregular heartbeat, severe dizziness, fainting, seizures. A very serious allergic reaction to. WebMD provides information about which foods to avoid while taking Plaquenil Oral. Skip to main content. Drugs & Medications Plaquenil. Medication Side Effects. Tips for dealing with them. If you still have pain with your daily activities, then you and your doctor should think about trying another medicine. What are the side effects of Plaquenil? The most common side effects are diarrhea, nausea, vomiting, headache, dizziness, skin rash or black spots when you look at things. 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. Plaquenil side effects can you drink Hydroxychloroquine Side Effects, Dosage, Uses, and More, Foods to Avoid When Taking Plaquenil Oral Is hydroxychloroquine an nsaidHydroxychloroquine 200 mg tab tabletPlaquenil a preventive medicine Hi pat i do not suffer from any side effects taking plaquenil but u mus get ur eyes checked at least every 6 mos or yearly the main side effect is blindness.thank God i have not had any problems and have been taking it for many years.this helps good luck n God bless PLaquenil and drinking alcohol - Scleroderma - Inspire. Lupus Medicines Hydroxychloroquine - Brigham and Women's.. HYDROXYCHLOROQUINE - ORAL Plaquenil side effects.. Some side effects of hydroxychloroquine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. RARE side effects. If experienced, these tend to have a Severe expression. Abnormal Liver Function Tests. Acute Liver Failure. Acute Pustular Eruptions On Skin. Bronchospasm. Decreased Blood Platelets. Decreased White Blood Cells. Feb 19, 2020 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.