Plaquenil is 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. Plaquenil tremors Pregnancy category hydroxychloroquine 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. Mechanism of action The mechanisms underlying the anti-inflammatory and immunomodulatory effects of Plaquenil are unknown. Indications and Usage for Plaquenil Malaria. Plaquenil is indicated for the treatment of uncomplicated malaria due to P. falciparum, P. malariae, P. ovale, and P. vivax. The more common side effects that can occur with hydroxychloroquine include headache; dizziness; diarrhea; stomach cramps; vomiting; Mild side effects may go away within a few days or a couple of. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. Plaquenil effects on diarrhea Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses, Plaquenil - FDA prescribing information, side effects and uses Chloroquine vs chloroquinine He told me that my blood is clotting and Plaquenil is a blood thinner. He knew I had to do stressful depositions this past week, so to start the Plaquenil after because it's been known to cause stomach pains and diarrhea. I am starting tonight since I chickened out this morning. Anyone else taking this? How bad are the side effects? Plaquenil/ Diarrhea - Autoimmune diseases - Inspire. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term. The New Zealand Dermatological Society recommends that to decrease the risk of retina damage, no more than 200mg of Plaquenil should be taken a day, and a dose of 400mg per day should be taken no longer than a few weeks. Summary Diarrhea is found among people who take Plaquenil, especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months, also take medication Enbrel, and have Pain. This study is created by eHealthMe based on reports of 48,911 people who have side effects when taking Plaquenil from Food and Drug Administration FDA. Side Effects Nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Remember.