Please review the following URL and make sure that it is spelled correctly. Plaquenil (hydroxychloroquine) belongs to a group of medicines called quinolines. Hydroxychloroquine retinopathy risk factors Hydroxychloroquine sulfate molecular weight SIDE EFFECTS. The following adverse reactions have been identified during post-approval use of PLAQUENIL or other 4-aminoqunoline compounds. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. I can't take it after I eat because of my gastric bypass surgery I have to wait 45 minutes after eating before I can drink anything and I can't eat and drink at the same time. I made sure I took in more water today but I have been having a lot of bowel problems today, everything I eat seems to be going through me. Ugh. 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. Malaria is common in areas such as Africa, South America, and Southern Asia. Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Plaquenil and diarrhea does it stop PATIENT FACT SHEET Hydroxychloroquine Plaquenil, Plaquenil and explosive bowel movements How does chloroquine work at the cellular levelChloroquine phosphate vetPlaquenil hydrochloroquine Hydroxychloroquine Plaquenil is considered a disease-modifying anti-rheumatic drug DMARD. It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Hydroxychloroquine Plaquenil. Stomach problems with Plaquenil • Johns Hopkins Arthritis Center. Plaquenil aka HCQS – Anyone on this getting severe diarrhea.. On eHealthMe, you can check your drugs with millions of FDA reports, or become a member to prevent side effects and save money. On Feb, 20, 2020 48,911 people reported to have side effects when taking Plaquenil. Plaquenil is generally well-tolerated, but side effects are possible. Common side effects linked to Plaquenil include nausea and diarrhea. Taking the medication with food eases nausea for most people taking the drug. Less common side effects include skin rashes, hair thinning, and weakness. If you are taking Plaquenil to treat an inflammatory condition or malaria, you should be aware of the side effects that may occur to your eyes and vision. Plaquenil hydroxychloroquine is in a class of drugs called disease-modifying anti-rheumatic drugs, which are used to decrease inflammation, pain and joint damage.