Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Hydroxychloroquine vs chloroquine Is plaquenil safe during breastfeeding Hydroxychloroquine comes as a tablet to take by mouth. For prevention of malaria in adults, two tablets are usually taken once a week on exactly the same day of each week. The first dose is taken 1 to 2 weeks before traveling to an area where malaria is common, and then doses are continued for 8 weeks after exposure. A very bad and sometimes deadly reaction has happened with hydroxychloroquine. Most of the time, this reaction has signs like fever, rash, or swollen glands with problems in body organs like the liver, kidney, blood, heart, muscles and joints, or lungs. Talk with the doctor. Keep away from children. What Conditions Does This Treat? Originally, hydroxychloroquine was used to prevent and treat malaria and was considered very effective. Now it is generally used for rheumatoid arthritis, but it has also been shown to work well for juvenile arthritis, some lupus symptoms, and other types of autoimmune conditions. 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 sulfate and sun exposure Vitamin d and Hydroxychloroquine sulfate drug interactions., Hydroxychloroquine Indications, Side Effects, Warnings. Safe dose to start on hydroxychloroquineHydroxychloroquine eye examI need an eye exam for plaquenil retinal functionHydroxychloroquine msHydroxychloroquine blind Photosensitivity is a skin reaction i.e. rash that occurs after exposure to ultraviolet UV radiation from the sun or an artificial light source. Photosensitivity can be caused by various agents, including drugs, perfume, cosmetics, and even the sunscreen that is meant to protect your skin. Photosensitivity Reaction With Certain Medications. RA and Hydroxychloroquine How Effective is it for Rheumatoid.. Hydroxychloroquine - Wikipedia. Hydroxychloroquine is a quinoline medicine used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Individuals were included in the exposed sample if they had connective tissue diseases and had been prescribed hydroxychloroquine or chloroquine for at least 1 year at a significant daily dosage i.e. mean daily dosage over the exposure period ≥100 mg for chloroquine and ≥200 mg for hydroxychloroquine. Hidroxicloroquina related photosensitivity reaction hydroxychlorochin related photosensitivity reaction * Warning The facts and figures contained in these reports are accurate to the best of our capability; however, our metrics are only meant to augment your medical knowledge, and should never be used as the sole basis for selecting a new medication.