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. Plaquenil rash Hydroxychloroquine sulfate melasma Chloroquine take how long to work APO-HYDROXYCHLOROQUINE HYDROXYCHLOROQUINE SULFATE TABLETS 1 NAME OF THE MEDICINE Hydroxychloroquine sulfate. 2 QUALITATIVE AND QUANTITATIVE COMPOSITION Each tablet contains 200 mg hydroxychloroquine sulphate, as the active ingredient. For the full list of excipients see section 6.1 List of excipients. 3 PHARMACEUTICAL FORM When your body responds well to the medication, your doctor may lower your dosage to 200–400 mg per day, as a single daily dose or in two divided doses. You may not see the best effect of this. Consumer Medicine Information CMI about APO-Hydroxychloroquine hydroxychloroquine sulfate intended for persons living in Australia. 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. Apo-hydroxychloroquine 200 mg APO-Hydroxychloroquine Tablets - NPS MedicineWise, Hydroxychloroquine Side Effects, Dosage, Uses, and More Drug information about chloroquine Hydroxychloroquine 200 mg tablet. color white shape oblong imprint AC54 This medicine is a white, oblong, film-coated, tablet imprinted with "AC54". ‹ Back to Gallery. Hydroxychloroquine Oral Uses, Side Effects, Interactions, Pictures.. APO-Hydroxychloroquine hydroxychloroquine. Hydroxychloroquine Professional Patient Advice -. In This Drug FactsheetHow Does This Medication Work? What Will It Do For Me?How Should I Use This medication?What FormS Does This Medication Come in?Who Should Not Take This medication?What Side Effects Are Possible with This medication?Are There Any Other Precautions Or Warnings For This medication?What Other Drugs Could Interact with This medication? For the treatment of RA, hydroxychloroquine is typically taken by mouth once daily at 200-400 mg, although it can be taken at a higher dose. A loading dose of 1,200 mg daily, given for 6 weeks may decrease the time to clinical response. However, experts debate that this higher dosage may increase the risk of toxicity. How Does This Medication Work? What Will It Do For Me?What FormS Does This Medication Come in?How Should I Use This medication?Who Should Not Take This medication?What Side Effects Are Possible with This medication?Are There Any Other Precautions Or Warnings For This medication?What Other Drugs Could Interact with This medication?