Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Mental side effects of plaquenil Plaquenil difficulty sleeping Plaquenil and sunburn Plaquenil taper Mar 17, 2019 Hydroxychloroquine drug interactions in more detail Further information Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use hydroxychloroquine only for the indication prescribed. Jan 01, 2020 Therefore, Plaquenil should not be administered with other drugs that have the potential to prolong the QT interval see DRUG INTERACTIONS. Worsening of psoriasis and porphyria Use of Plaquenil in patients with psoriasis may precipitate a severe attack of psoriasis. Hydroxychloroquine oral tablet is available as a brand-name drug and a generic drug. Brand name Plaquenil. Hydroxychloroquine comes only as a tablet you take by mouth. Hydroxychloroquine is used to treat malaria, lupus erythematosus, and rheumatoid arthritis. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Drug interactions plaquenil Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects., Plaquenil - Prescription Drug Information, Interactions. Plaquenil eye test Side Effects Nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Remember. Hydroxychloroquine Oral Uses, Side Effects, Interactions.. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Hydroxychloroquine - Side Effects, Dosage, Interactions - Drugs.. There may be a potential interaction with drugs that affect your eyes, such as vigabatrin Sabril. Plaquenil and Alcohol Alcoholic beverages may increase your risk of liver problems while you. There may be an interaction between hydroxychloroquine and any of the following albendazole amiodarone beta-adrenergic blockers e.g. atenolol, propranolol, sotalol chlorpromazine cyclosporine dapsone diabetes medications e.g. glyburide, chlorpropamide, insulin, rosiglitazone digoxin leflunomide Not for administration with other drugs that have potential to prolong QT interval; hydroxychloroquine prolongs QT interval; ventricular arrhythmias and torsades de pointes reported in patients taking hydroxychloroquine Skeletal muscle myopathy or neuropathy leading to progressive weakness and atrophy of proximal muscle groups.