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. How long has plaquenil been on the market Plaquenil wonder drug 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. Find patient medical information for Chloroquine Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Our Aralen chloroquine phosphate Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. 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. Itchiness side effect of chloroquine Hydroxychloroquine Side Effects -, Chloroquine Oral Uses, Side Effects, Interactions. Plaquenil and stomach ulcers Chronic itching It is important to notify your nurse or doctor if a rash or itching develops. Early diagnosis and treatment of chronic side effects will allow your treatment to continue while reducing side effects and their impact on quality of life. Itching - Managing Side Effects - Chemocare. Side Effects of Aralen Chloroquine, Warnings, Uses. Aralen chloroquine Malaria Drug Side Effects & Dosage. Compare Chloroquine vs Hydroxychloroquine head-to-head with other drugs for uses, ratings, cost, side effects, interactions and more. Chloroquine rated 10.0/10 vs Hydroxychloroquine rated 6.7/10 in overall patient satisfaction. What are some other side effects of Chloroquine? 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 Belly pain. Stomach cramps. Not hungry. Chloroquine side effects. Get emergency medical help if you have signs of an allergic reaction hives, difficult breathing, swelling in your face or throat or a severe skin reaction fever, sore throat, burning in your eyes, skin pain, red or purple skin rash that spreads and causes blistering and peeling.