Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Hydroxychloroquine grade c pregnancy Plaquenil and valacyclovir Digoxin, cyclosporine, and certain beta blockers may cause drug interactions with hydroxychloroquine. This eMedTV segment explores what may happen if these drugs are taken with hydroxychloroquine and lists other drugs that may cause an interaction. Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of hydroxychloroquine to prevent and treat malaria in children. However, children are more sensitive to the effects of this medicine than adults. Hydroxychloroquine oral tablet can interact with other medications, vitamins, or herbs you may be taking. An interaction is when a substance changes the way a drug works. This can be harmful or. 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 interaction Hydroxychloroquine Side-effects, uses, time to work, Hydroxychloroquine Oral Route Before Using - Mayo Clinic Dejar de tomar plaquenil Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine-sensitive malaria. Other uses include treatment of rheumatoid arthritis, lupus, and porphyria cutanea tarda. It is taken by mouth. Common side effects include vomiting, headache, changes in vision. Hydroxychloroquine - Wikipedia. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Hydroxychloroquine - Side Effects, Dosage, Interactions.. Identify these serious hydroxychloroquine drug interactions with the RxList drug interaction checker tool. Side effects include irritability, headache, weakness, hair lightening or loss, stomach upset, nausea, dizziness, muscle pain, rash and itching. Rarely, hydroxychloroquine can affect the bone marrow leading to reduced white blood cells leukopenia or platelets thrombocytopenia and abnormal red blood cells. Medscape - Indication-specific dosing for Plaquenil hydroxychloroquine sulfate, frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information.