Brand name : Plaquenil (Quineprox)
Pronounced: PLAK-en-ill
Generic name: Hydroxychloroquine sulfate
Why is Plaquenil (Quineprox) prescribed?

Plaquenil (Quineprox) is prescribed for the prevention and treatment of certain forms of malaria.

Plaquenil (Quineprox) is also used to treat the symptoms of rheumatoid arthritis such as swelling, inflammation, stiffness, and joint pain. It is also prescribed for lupus erythematosus, a chronic inflammation of the connective tissue.
Most important fact about Plaquenil (Quineprox)

Children are especially sensitive to Plaquenil (Quineprox). Relatively small doses of Plaquenil (Quineprox) have caused fatalities. Keep Plaquenil (Quineprox) in a child-proof container and out of the reach of children.
How should you take Plaquenil (Quineprox)?

Take Plaquenil (Quineprox) exactly as prescribed for the full course of therapy.

If you have been prescribed Plaquenil (Quineprox) for rheumatoid arthritis, it will take several weeks for beneficial effects to appear. Take each dose with a meal or a glass of milk.

If you miss a dose...

And you take 1 dose every 7 days, take it as soon as you remember, then go back to your regular schedule.

If you take 1 dose a day and you miss your dose, take it as soon as you remember. If you do not remember until the next day, skip the one you missed and go back to your regular schedule.

If you take more than one dose a day, take it as soon as you remember if it is within an hour or so of the missed time. If you do not remember until later on, skip the missed dose and go back to your regular schedule. Do not take 2 doses at once.

Storage information

Store at room temperature, away from heat, light, and moisture.
Plaquenil (Quineprox) side effects

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Plaquenil (Quineprox).

* Side effects of treatment for an acute malarial attack may include:
Abdominal cramps, diarrhea, dizziness, heart problems, lack or loss of appetite, mild headache, nausea, vomiting

* Side effects of treatment for lupus erythematosus and rheumatoid arthritis may include:
Abdominal cramps, abnormal eye pigmentation, acne, anemia, bleaching of hair, blind spots, blisters in mouth and eyes, blood disorders, blurred vision, convulsions, decreased vision, diarrhea, difficulty focusing the eyes, diminished reflexes, dizziness, emotional changes, excessive coloring of the skin, eye muscle paralysis, "foggy vision," halos around lights, headache, hearing loss, heart problems, hives, involuntary eyeball movement, irritability, itching, light flashes and streaks, light intolerance, liver problems or failure, loss of hair, loss or lack of appetite, muscle paralysis, muscle weakness and wasting, nausea, nervousness, nightmares, psoriasis (dry, scaly, red skin patches), reading difficulties, ringing in the ears, skin eruptions, skin inflammation and scaling, skin rash, vertigo, vomiting, weariness, weight loss

Why should Plaquenil (Quineprox) not be prescribed?

If you are sensitive to or have ever had an allergic reaction to Plaquenil (Quineprox) or similar drugs such as Aralen and Chloroquine, you should not take Plaquenil (Quineprox). Make sure your doctor is aware of any drug reactions you have experienced.

Plaquenil (Quineprox) should not be prescribed if you have suffered partial or complete loss of vision in small areas while taking this medication or similar drugs. Notify your doctor of any past or present visual changes you have experienced.

This drug should not be used for long-term therapy in children.
Special warnings about Plaquenil (Quineprox)

Unless you are directed to do so by your doctor, do not take this medication if you have psoriasis (a recurrent skin disorder characterized by patches of red, dry, scaly skin) or porphyria (an inherited metabolic disorder affecting the liver or bone marrow). The use of Plaquenil (Quineprox) may cause a severe attack of psoriasis and may increase the severity of porphyria.

Disorders of the retina causing impairment or loss of vision may be related to the length of time and the dose of Plaquenil (Quineprox) given for lupus and rheumatoid arthritis. Problems have occurred several months to several years after beginning daily therapy. When you are on prolonged therapy your doctor will perform eye examinations at the beginning of treatment and every 3 months after that. Visual disturbances may progress, even after you have stopped taking this drug. If you have any problem with your vision or your eyes, notify your doctor immediately.

All people on long-term therapy with Plaquenil (Quineprox) should have a physical examination periodically, including testing of knee and ankle reflexes, to detect any evidence of muscular weakness.

Consult your doctor if you experience ringing in the ears, or other hearing problems.

If you are being treated for rheumatoid arthritis and have shown no improvement (such as reduced joint swelling or increased mobility) within 6 months, your doctor may decide to discontinue Plaquenil (Quineprox).

Plaquenil (Quineprox) should be used with caution by alcoholics and those who have liver disease or kidney problems.

Your doctor should conduct periodic blood cell counts if you are on prolonged therapy with Plaquenil (Quineprox). If any severe blood disorder develops that is not attributed to the disease you are being treated for, your doctor may discontinue use of Plaquenil (Quineprox).

Consult your doctor if you are taking a drug that has a tendency to produce dermatitis (inflammation of the skin), because you may have some skin reactions while taking Plaquenil (Quineprox).
Possible food and drug interactions when taking Plaquenil (Quineprox)

If Plaquenil (Quineprox) is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Plaquenil (Quineprox) with the following:

Any medication that may cause liver damage
Aurothioglucose (Solganal)
Cimetidine (Tagamet)
Digoxin (Lanoxin)
Special information if you are pregnant or breastfeeding

Use of Plaquenil (Quineprox) during pregnancy should be avoided except in the suppression or treatment of malaria when, in the judgment of your doctor, the benefit outweighs the possible hazard. This drug may appear in breast milk and could affect a nursing infant. If this medication is essential to your health, your doctor may advise you to discontinue breastfeeding until your treatment is finished.
Recommended dosage for Plaquenil (Quineprox)

ADULTS
Overdosage

Any medication taken in excess can have serious consequences. If you suspect an overdose, seek emergency medical treatment immediately.

* Symptoms of an overdose of Plaquenil (Quineprox) may occur within 30 minutes. They include:
Convulsions, drowsiness, headache, heart problems and failure, inability to breathe, visual problems