Hydroxychloroquine 400Mg

Last Updated on 16/01/2026

Hydroxychloroquine 400mg is a malaria-treating drug available only with a prescription. It is also prescribed for the treatment of arthritis (rheumatoid) and lupus. Hydroxychloroquine is the major ingredient of the drug, and you must take the drug after proper consultation with a licensed doctor.

Here is a brief detail of the drug, but the details provided are all for your information. For usage specifications, consult with a doctor.

Uses Of Hydroxychloroquine 400Mg

Hydroxychloroquine is prescribed by the doctors according to the FDA assessment for treatment of –

• Malaria
• Arthritis (rheumatoid) and
• Lupus (DLE)

How To Take Hydroxychloroquine?

• Take the drug with food or milk to avoid stomach upset.
• For dosage, follow the specifications of the doctor strictly, as the dosage changes with the body weight of the patient.
• The effect of the medicine can be seen within a few weeks, but the full therapy can extend to some months. Continue the full treatment for complete recovery.

How Does Hydroxychloroquine Work?

Hydroxychloroquine blocks the immune signalling and chemical messengers to take control over the disease and cure the same. It works in totality and cures all the symptoms of the disease, along with the changes it does in the system controlled by the disease.

Dosage Of Hydroxychloroquine 400Mg

Dosage of Hydroxychloroquine 400Mg depends on the disease which is treated by it treats. It also depends on the body weight of the patient, and hence, understanding the dosage is much needed. However, for getting specified dosage for your treatment, follow the prescription made by your doctor. Here is a weight-wise informative details of Hydroxychloroquine dosage according to the disease it treats –

Treatment Of Malaria –

• Started with 800 mg a day (2 tablets taken at a time), followed by 400 mg on the 6^th hour, 24^th hour and 48^th hour after the initial dosage.
• For malaria, Hydroxychloroquine must not be given to children who are below 31 kg in weight.
• For children above 31 kg, the initial dose is 13mg for each Kg of body weight. Dosage is always single means one tablet each day. The initial dosage is to be followed by 6.5mg/kg on the 6^th hour, 24^th hour and 48^th

Treatment Of Arthritis And Lupus –

• Dosage for arthritis treatment is 400mg a day in one or two tablets a day for adults (above 18 years).
• For usage in children, the dosage must be decided specifically by your doctor.

Dosage Administration:

• Overdosing is strictly prohibited. Hence, if you need to take more than one pill at a time, stay alert.
• In case you miss one dose on time, you can take it within 4 hours of missing it. If you fail to take it within 4 hours of the dosage, skip it.
• In the case of malaria treatment, dosage monitoring has to be made very much specific. Know the right dosage from your doctor according to your age and take the dosage responsibly. If you missed a dose, made a mistake in dose timing, or overdosed, inform your doctor without any delay.

Precautions And Warnings:

Eye issues – Eye and especially retina checking periodically is essential. In case you are continuing the medication for a long duration, retina damage has often been reported.

Heart/Mental issues – Heart disease issues and mental issues (including suicidal tendency), although less in numbers has been reported after long-term usage of Hydroxychloroquine.

BP/Diabetes- If you are taking any BP-regulating medicine or diabetes medication, inform your doctor, as there can be a sudden uplift of both blood pressure and sugar level.

Common Side Effects –

Other than the special cases that are mentioned in precaution and warning, patients often report some common side effects, like –

• Dizziness
• Headache
• Nausea
• Skin rashes (mild)
• Stomach pain

All these are minor side effects, and they will fade as you continue the medication and your body gets adapted with the medication. If any of the side effects persist for more than a week, talk about that with your doctor.

FAQs

Q. Does Hydroxychloroquine 400Mg Cause Effect On Vision?

Yes, it affects the retina and hence, check your retina and care about your eye, especially when you are taking Hydroxychloroquine for a long time.

Q. Is Hydroxychloroquine Safe For Pregnant Women?

Yes, there is no such report made by the users stating the effect of Hydroxychloroquine on pregnant women.

Q. Can Liver Function Be Affected By Hydroxychloroquine?

No, there is no such report specifying any reaction of Hydroxychloroquine on liver issues.

Q. Is It Safe To Have Hydroxychloroquine?

Hydroxychloroquine was approved for usage by the FDA in 2020. Hence, it is a safe medicine to take only with a prescription.

Q. Where To Buy Hydroxychloroquine?

You can buy Hydroxychloroquine from Powpills, the authentic store of 100% genuine generic medicine.

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