Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Retinal toxicity and plaquenil Plaquenil side effect skin There's no known interaction between alcohol and hydroxychloroquine. However, if you're also taking methotrexate you should keep well within the recommended limits no more than 14 units of alcohol per week for adults as methotrexate can interact with alcohol and affect your liver. In some circumstances your doctor may advise lower limits. Hydroxychloroquine sulfate is a colorless crystalline solid, soluble in water to at least 20 percent; chemically the drug is 2-4-7-Chloro-4-quinolylaminopentylethylamino ethanol sulfate 11. PLAQUENIL hydroxychloroquine sulfate tablets contain 200 mg hydroxychloroquine sulfate, equivalent to 155 mg base, and are for oral administration. Side Effects. Drug information provided by IBM Micromedex Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. 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. Hydroxychloroquine sulfatr alcohol Plaquenil hydroxychloroquine sulfate dose, indications., Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects. Plaquenil leaky gutClinical pearls hydroxychloroquineChloroquine overdose deathHydroxychloroquine 100 mg tablet Hydroxychloroquine may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies, or to become more depressed. If you or your caregiver notice any of these side effects, tell your doctor right away. This medicine may cause hypoglycemia low blood sugar. Hydroxychloroquine Oral Route Precautions - Mayo Clinic. Hydroxychloroquine Oral Route Side Effects - Mayo Clinic. Hydroxychloroquine Indications, Side Effects, Warnings.. Hydroxychloroquine is usually taken with food or milk to prevent stomach upset. The dosage and length of treatment are based on your medical condition and response to therapy. In children, dosage is also based on weight. Drug Information on Plaquenil, Plaquenil Sulfate, Quineprox hydroxychloroquine includes side effects, uses, drug interactions, dosage, drug pictures, overdose symptoms, and what to avoid. Topics A-Z Slideshows Images Quizzes Supplements Medications PLAQUENIL ® HYDROXYCHLOROQUINE SULFATE TABLETS, USP DESCRIPTION PLAQUENIL ® h. ydroxychloroquine sulfate is a. white or practically white, crystalline. powder, freely. soluble in water; practically insoluble in alcohol, chloroform, and in ether. The. chemical. name for hydroxychloroquine sulfate. is 2-4-7-Chloro-4-quinolyl amino.