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. Chloroquine dosing for lupus Chloroquine poisoning treatment In view of the controversies regarding the association between acid-suppressing drugs and acute pancreatitis, we conducted a retrospective cohort study in the General Practice Research Database GPRD in the United Kingdom UK to assess the risk of acute pancreatitis associated with the use of cimetidine, famotidine, nizatidine, ranitidine. Drug interactions with ranitidine may occur when the medication is taken with warfarin, atazanavir, or itraconazole. Other medications that may interact with ranitidine include triazolam and ketoconazole. Cimetidine, famotidine, nizatidine, and ranitidine pass into the breast milk and may cause unwanted effects, such as decreased amounts of stomach acid and increased excitement, in the nursing baby. It may be necessary for you to take another medicine or to stop breast-feeding during treatment. 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. Ranitidine and plaquenil Ranitidine Side Effects, Dosage, Uses, and More, Drug Interactions With Ranitidine What do hydroxychloroquine do Hydroxychloroquine is a disease-modifying anti-rheumatic drug DMARD. It regulates the activity of the immune system, which may be overactive in some conditions. Hydroxychloroquine can modify the underlying disease process, rather than simply treating the symptoms. Hydroxychloroquine Side-effects, uses, time to work. Histamine H2 Antagonist Oral Route, Injection Route, Intravenous Route.. Don’t EVER use turmeric if you’re on any of the following.. Consumer information about the medication HYDROXYCHLOROQUINE - ORAL Plaquenil, includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug HYDROXYCHLOROQUINE - ORAL. Does Plaquenil Interact with other Medications? Severe Interactions. These medications are not usually taken together. Consult your healthcare professional e.g. doctor or pharmacist for more in. What is Ranitidine? Ranitidine has active ingredients of ranitidine. It is often used in gastroesophageal reflux disease. Check the latest outcomes from 58,680 Ranitidine users, or browse all drugs. What is Plaquenil? Plaquenil has active ingredients of hydroxychloroquine sulfate. It is often used in systemic lupus erythematosus.