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Medical Editor: John P. Cunha, DO, FACOEP
Plaquenil (hydroxychloroquine) is used to treat or prevent malaria, a disease caused by parasites, which enter the body through the bite of a mosquito. It is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. It is an antimalarial medication. This medication is available in generic form. Common side effects include nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache.
The adult dose of Plaquenil to suppress malaria is 400 mg on the same day each week. The pediatric weekly suppressive dosage is 5 mg/kg of body weight. The adult dose of Plaquenil to treat an acute attack of malaria is an initial dose of 800 mg followed by 400 mg in six to eight hours and 400 mg for two more days. To treat lupus erythematosus, the average adult dose is 400 mg once or twice daily. Plaquenil may interact with acetaminophen, cancer medications, tuberculosis medications, birth control pills or hormone replacement therapy, arthritis medications, ACE inhibitors, antibiotics, antifungals, cholesterol medications, HIV/AIDS medications, NSAIDs (non-steroidal anti-inflammatory drugs), or seizure medications. Tell your doctor all medications you use. Plaquenil should be used only when prescribed during pregnancy. This medication is not recommended to treat rheumatoid arthritis during pregnancy. This medication passes into breast milk. Consult your doctor before breast-feeding.
Our Plaquenil (hydroxychloroquine) Drug Center provides a comprehensive view of available drug information as well as related drugs, user reviews, supplements, and diseases and conditions articles.
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
PLAQUENIL (hydroxychloroquine) is indicated for the suppressive treatment and treatment of acute attacks of malaria due to Plasmodium vivax, P. malariae, P. ovale, and susceptible strains of P. falciparum. It is also indicated for the treatment of discoid and systemic lupus erythematosus, and rheumatoid arthritis.
PLAQUENIL (hydroxychloroquine) is indicated for the treatment of acute attacks and suppression of malaria.
PLAQUENIL (hydroxychloroquine) is ...
Read the complete drug monograph for Plaquenil »
Drug Description - Indications & Dosage - Side Effects & Drug Interactions - Warnings & Precautions - Contraindications - Medication Guide and More
What is Patient information?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Some people taking this medication over long periods of time or at high doses have developed irreversible damage to the retina of the eye. Stop taking hydroxychloroquine and call your doctor at once if you have trouble focusing, if you see light streaks or flashes in your vision, or if you notice any swelling or color changes in your eyes.
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have any of these serious side effects:
...Read the complete patient information for Plaquenil »
Possible Side Effects - Images - What Is - How Should I Take It - What If I Miss a Dose - What Should I Avoid and More
What is Consumer information?
A concise overview of the drug for the patient or caregiver from First DataBank.
This medication is also used, usually with other medications, to treat certain auto-immune diseases (lupus, rheumatoid arthritis) when other medications...
Read the complete consumer information for Plaquenil »
Warnings - Uses - How to Use - Side Effects - Precautions - Drug Interactions and More
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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