"Dosing guidance meant to reduce the risk for hydroxychloroquine (HCQ) retinal damage is followed for only half of HCQ-treated rheumatology patients who are also seen by an ophthalmologist, according to a study published online January 30 in Op"...
Plaquenil Consumer (continued)
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor immediately if any of these unlikely but serious side effects occur: arm/leg/back pain, fast/irregular heartbeat, hair loss/color change, mental/mood changes (e.g., anxiety, depression, hallucinations), ringing in the ears/hearing loss, worsening of skin conditions (e.g., psoriasis).
This medication may infrequently cause serious (sometimes permanent) eye problems or muscle damage, especially if you take it for a long time. Seek immediate medical attention if any of these unlikely but very serious side effects occur: sensitivity to light, vision changes (e.g., blurred vision, seeing light flashes/streaks/halos, missing/blacked-out areas of vision), muscle weakness.
Tell your doctor immediately if any of these rare but very serious side effects occur: severe stomach/abdominal pain, severe nausea/vomiting, easy bleeding/bruising, signs of infection (e.g., fever, persistent sore throat), seizures, shortness of breath, swelling ankles/feet, extreme tiredness, dark urine, yellowing eyes/skin.
This medication may infrequently cause low blood sugar (hypoglycemia). Tell your doctor right away if you develop symptoms of low blood sugar, such as sudden sweating, shaking, fast heartbeat, hunger, blurred vision, dizziness, or tingling hands/feet. If you have diabetes, be sure to check your blood sugars regularly. Your doctor may need to adjust your diabetes medication.
A very serious allergic reaction is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the Plaquenil (hydroxychloroquine) Side Effects Center for a complete guide to possible side effects
PRECAUTIONS: See also Side Effects section.
Before taking hydroxychloroquine, tell your doctor or pharmacist if you are allergic to it; or to other aminoquinolines (e.g., chloroquine); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: certain eye problems (retinal or visual field problems from other aminoquinolines such as chloroquine).
Before using this medication, tell your doctor or pharmacist your medical history, especially of: alcohol dependency, certain blood disorder (porphyria), certain genetic problem (G-6-PD deficiency), diabetes, kidney disease, liver disease, certain skin problems (e.g., atopic dermatitis, psoriasis).
This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Avoid alcoholic beverages because they may increase your risk of liver problems while you are taking this drug.
This medication may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use a sunscreen and wear protective clothing when outdoors.
Caution is advised when using this drug in children because they may be more sensitive to the side effects of the drug. This medication is not recommended for long-term use in children. If a child accidentally takes this medication, even a small amount can be very harmful (possibly fatal). Be sure to keep this drug out of the reach of children.
This medication should be used only when clearly needed during pregnancy. This medication is not recommended for use in treating rheumatoid arthritis during pregnancy. Discuss the risks and benefits with your doctor.
This medication passes into breast milk. Consult your doctor before breast-feeding.
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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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