Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Plaquenil toxicity symptoms Chloroquine during pregnancy Chloroquine and filipin lysosome Talk to your doctor about using hydroxychloroquine safely. This drug may make you dizzy. Alcohol or marijuana can make you more dizzy. Do not drive, use machinery, or do anything that needs. 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. Alcohol abuse can damage your liver, which can affect how hydroxychloroquine works in your body. Avoid alcohol while taking this medication. Warnings for people with certain health 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 alcohol Hydroxychloroquine Oral Route Before Using - Mayo Clinic, Hydroxychloroquine Oral Route Side Effects - Mayo Clinic Hydroxychloroquine sulphate tabletsImages early plaquenil toxicity fundus autofluorescenceChloroquine lysosome inhibitor mechanism Hydroxychloroquine is in a class of drugs called antimalarials. It is used to prevent and treat acute attacks of malaria. It is also used to treat discoid or systemic lupus erythematosus and rheumatoid arthritis in patients whose symptoms have not improved with other treatments. Hydroxychloroquine MedlinePlus Drug Information. Hydroxychloroquine Side Effects, Dosage, Uses, and More. RA and Hydroxychloroquine How Effective is it for Rheumatoid.. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as. Hydroxychloroquine is considered safer than chloroquine during pregnancy and lactation. Hydroxychloroquine is rapidly absorbed from the gastrointestinal tract, and steady-state concentrations are reached after 4–6 weeks; 45% of hydroxychloroquine binds to plasma proteins that are deposited in tissues such as the liver, spleen, kidney, and lung. Plaquenil is a prescription medication used to reduce pain and swelling caused by diseases of the immune system such as rheumatoid arthritis, juvenile arthritis, and systemic lupus erythematosus SLE. This medication belongs to a group of drugs called DMARDs disease modifying antirheumatic drugs which work by suppressing the excessive activity of the immune system.