Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Leflunomide and plaquenil taken together Plaquenil and visual field testing Chloroquine phosphate tablets ip 500mg I’ve been on plaquenil for almost 3 years and I still have diarrhea and to a lesser extent heartburn and nausea sometimes. The first year or two I was on plaquenil I didn’t have a normal bowel movement for as long as I could remember and was constantly nauseous and could barely eat. Hydroxychloroquine typically is very well tolerated. Serious side effects are rare. The most common side effects are nausea and diarrhea, which often improve with time. Less common side effects include rash, changes in skin pigment such as darkening or dark spots, hair changes, and muscle weakness. Rarely, hydroxychloroquine can lead to anemia in In some people, HCQ may cause gastrointestinal problems, such as nausea, vomiting, upset stomach, cramps, or diarrhea. These may occur for the first few days a person takes the drug while the body adjusts to the medication. Loss of appetite, tiredness, weakness, or headache are uncommon side effects and typically go away over time. Rare. 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 diarrhea Plaquenil hydroxychloroquine sulfate dose, indications., PATIENT FACT SHEET Hydroxychloroquine Plaquenil Hydroxychloroquine over the counter Hydroxychloroquine is commonly used alongside other disease-modifying drugs including methotrexate – especially for rheumatoid arthritis. However, some drugs can interact with hydroxychloroquine. Indigestion remedies for example, antacids including some over-the-counter preparations can stop hydroxychloroquine being absorbed. Hydroxychloroquine Side-effects, uses, time to work. Drug spotlight on hydroxychloroquine Lupus Foundation of.. Hydroxychloroquine Oral Uses, Side Effects, Interactions.. Mar 17, 2019 Talk with your doctor if you have fever, vomiting, or diarrhea during your treatment. When treating lupus or arthritis, hydroxychloroquine is usually given daily for several weeks or months. For best results, keep using the medication as directed. 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 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.