Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Hydroxychloroquine and l lysine Adverse effects of plaquenil Hydroxychloroquine 200 mg acetaminophen 400 mg Hydroxychloroquine olecranon bursitis I started taking Plaquenil 4 weeks ago for non specific autoimmune disease as indicated by ANA. Symptoms were low grade temperature off and on for a year, joint pain and fatigue. I have already felt some relief. Some nauseau at first but less problem with fever and joint pain. But, now I have started having stomach cramps and diarrhea. I understand these may go away. Is there anything I can. Anyone have stomach pain after taking their plaquenil? I took my first dosage on Sunday and my stomach hurt so bad I could hardly stand it. I drank milk but it still hurt. Now I'm scared to take any more. I want to feel better but not at that cost. Many people have nausea, stomach cramps, and diarrhea when they first start taking Plaquenil hydroxychloroquine. If you have heart, eye, liver conditions, or psoriasis, talk to your doctor to see if Plaquenil hydroxychloroquine is right for you. Get our free fact sheet What to expect from Plaquenil, on one page 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 and stomach pain Medicines for the Prevention of Malaria While Traveling., Plaquenil and stomach pain DailyStrength Trade name chloroquineHow does hydroxychloroquine work in sle Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil is available in generic form. What Are Side Effects of Plaquenil? Common side effects of Plaquenil include. nausea, vomiting, stomach pain or cramps, loss of appetite, weight loss, diarrhea, dizziness, spinning sensation. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Plaquenil hydroxychloroquine Basics, Side Effects & Reviews.. Hydroxychloroquine Sulfate Abdominal Distension Reports.. Hydroxychloroquine can cause an upset tum, it's a common side effect so it could be the longer you're taking it there's a build up effect. Trouble is you've other things coming up so it could be nervous tum, or even the two both making your tum particularly sensitive. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. stomach cramps;. less pain, fewer lupus-related rashes, and a better ability to move around. Summary Abdominal pain is found among people who take Plaquenil, especially for people who are female, 60+ old, have been taking the drug for 5 - 10 years, also take medication Enbrel, and have Pain.