Hydroxychloroquine Dosage Calculator
Health & FitnessCalculate the maximum recommended hydroxychloroquine dose using the 2016 ophthalmology guideline of 5 mg per kg of actual body weight, to help minimize retinopathy risk.
Maximum Recommended Daily Dose
The maximum recommended daily dose, based on the 5 mg/kg (real body weight) 2016 guideline.
Actual Dose per kg
0.00
The entered prescribed dose expressed per kilogram, for comparison against the 5 mg/kg threshold.
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Frequently Asked Questions
Why does the dose matter for eye safety?
Doses above 5 mg/kg are associated with a substantially higher long-term risk of retinopathy: roughly 2% at 10 years and 20% at 20 years at or below 5 mg/kg, rising to roughly 10% at 10 years and 40% at 20 years above it.
Is hydroxychloroquine used for COVID-19?
No. Major health authorities have found no benefit for COVID-19, and its emergency authorization for that use was revoked. This calculator covers its established uses such as malaria, lupus, and rheumatoid arthritis.
Is this a substitute for medical advice?
This tool is for educational reference only and is not a substitute for professional medical advice. Always confirm dosing with a doctor or pharmacist before giving or taking any medication.
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