This medicine is also sometimes given off-label to help the following conditions: Also, let your doctor know if you drink large amounts of alcohol before starting on this medicine. Your doctor will probably want to order frequent tests to check your body's response to chloroquine. Plaquenil and depression Hydroxychloroquine pronounce Chloroquine diphosphate selleckchem Provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. Use WebMD’s Drug Interaction Checker tool to find and identify potentially harmful and unsafe combinations of prescription medications by entering two or more drugs in question. Ranitidine is a prescription drug used to treat ulcers of the stomach and intestines and to prevent intestinal ulcers from coming back after they have healed. Ranitidine is also used to treat certain stomach and throat problems such as erosive esophagitis, gastroesophageal reflux disease or GERD, and Zollinger-Ellison syndrome. Let your healthcare provider know if your symptoms either don't improve or worsen while taking this medicine. Keep all appointments with your doctor and laboratory. Drug interaction zantac and chloroquine Chloroquine Aralen - Side Effects, Dosage, Interactions - Drugs, Drug Interaction Checker - Find Interactions Between Medications Plaquenil dose toxicityPlaquenil and inflammation The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is. Drugs & Medications - WebMD. Ranitidine Zantac Side Effects, Dosages, Treatment, Interactions.. Table of drug interactions - Depression in Adults with a Chronic.. Chloroquine and hydroxychloroquine belong to the quinolone family. They are related drugs with similar clinical indications for use and similar manifestations of retinal toxicity, although their therapeutic and toxic doses differ. The antimalarial drug chloroquine, an acidotropic agent that passively diffuses into acidic organelles, has been shown to have a direct antifungal activity against Histoplasma capsulatum and Cryptococcus neoformans 2 x 2 Islahudin, F. Khozoie, C. Bates, S. Ting, K. N. Pleass, R. J. and Avery, S. V. Cell wall perturbation sensitizes fungi. When certain medicines are taken with Zantac, drug interactions may potentially occur that can decrease the effectiveness of the drugs. These interactions may require your healthcare provider to adjust your dosages or recommend a substitute medication for Zantac.