One such commonly used medication for dermatologic and rheumatologic inflammatory conditions is hydroxychloroquine (Plaquenil), a chloroquine derivative. It is used to treat many diseases including malaria, rheumatoid arthritis and systemic lupus erythematosus. Hydroxychloroquine skin peeling Chloroquine diphosphate lysosome The usual dosage works for most people who take Plaquenil, but it is possible to increase or decrease the dose based on individual needs. It's important to watch for possible side effects and toxicity. For people who weigh less than 80 kg, a lower daily dose is prescribed, up to a maximum of 5 mg/kg of body weight. Dosage levels that can cause toxicity 6.5 mg/kg Hydroxychloroquine Plaquenil19 3 mg/kg Chloroquine Arlen With Plaquenil Plaquenil is manufactured in only a 200 mg tablet The typical dosage is either 200 or 400 mg per day 200 mg daily puts anyone under 68 pounds at risk1 400 mg of Plaquenil daily puts anyone under 135 pounds at a higher. Medscape - Indication-specific dosing for Plaquenil hydroxychloroquine sulfate, frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. It is imperative that patients and physicians are aware of and watch for this drug’s ocular side effects. Retinal toxicity from hydroxychloroquine is rare, but even if the medication is discontinued, vision loss may be irreversible and may continue to progress. Whats the dosage that causes plaquenil toxicity Plaquenil Uses, Dosage & Side Effects -, Early Plaquenil Toxicity Detected without Bull’s Eye Maculopathy Cutting back on plaquenilUlcer plaquenilHydroxychloroquine renal toxicity Hydroxychloroquine increases the QT interval and should not be administered with other drugs known to prolong the QT interval. Ventricular arrhythmias and torsade de pointes have been reported with the use of hydroxychloroquine. Citalopram causes dose-dependent QT interval prolongation. Plaquenil hydroxychloroquine sulfate dose, indications.. Plaquenil hydroxychloroquine sulfate dosing, indications.. Hydroxychloroquine Plaquenil Toxicity and.. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Side Effects Nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Remember. Aug 01, 2009 A friend told me that the Plaquenil can cause problems with your eyes which is why I checked this board today. I have an appointment with my Rhuematolgist who put me on this medicine at the end of the month and I believe the dose is going to be increased should I tell him about my eye sight loss or call my eye doctor?