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 lysosome inhibitor mechanism Chloroquine euthanasia Plaquenil ophthalmic side effects Drowsiness and dizziness are more likely to occur after the first dose, after an increase in dose, or during hot weather or exercise. These effects can decrease once your body adjusts to this medicine. Do not drive, use machinery, or do anything that needs mental alertness until you know how this drug affects you. 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. WebMD provides information about interactions between Alfuzosin Oral and possible-qt-prolonging-agents-hydroxychloroquine. Skip to main content. Medication Side Effects. Tips for dealing with. 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. Alfuzosin and hydroxychloroquine side effects Alfuzosin Uses, Side Effects & Warnings -, Hydroxychloroquine Side Effects, Dosage, Uses, and More Plaquenil retinopathy info for patientPlaquenil toxicity macula This is an extremely rare side effect, but if it goes untreated, can result in permanent erectile dysfunction impotence. Check with your doctor right away if you have arm, back or jaw pain, chest pain or discomfort, chest tightness or heaviness, fast or irregular heartbeat, nausea, or sweating. Alfuzosin Oral Route Precautions - Mayo Clinic. Interactions between Alfuzosin Oral and possible-qt.. Alfuzosin Reviews Everyday Health. Find patient medical information for Alfuzosin Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Find information about common, infrequent and rare side effects of Alfuzosin Oral. Learn about side effects, warnings, dosage, and more. Alfuzosin oral tablet is a prescription medication used to treat benign prostatic hyperplasia BPH, which is also called enlarged prostate.