It works by preventing or treating malaria, a red blood cell infection transmitted by the bite of a mosquito. However, this medicine is not used to treat severe or complicated malaria. Can i take advil cold and sinus with hydroxychloroquine Is plaquenil quinine Find patient medical information for Pepcid Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. There are 8 disease interactions with Plaquenil hydroxychloroquine which include oculotoxicity. porphyria. bone marrow suppression. ototoxicity. seizures. hepatotoxicity. Descriptions. Hydroxychloroquine is used to treat malaria. It is also used to prevent malaria infection in areas or regions where it is known that other medicines eg, chloroquine may not work. Hydroxychloroquine belongs to a group of medicines known as antimalarials. It works by preventing or treating malaria. It is also used to treat acute and chronic rheumatoid arthritis. Hydroxychloroquine is used to treat discoid lupus erythematosus (DLE) or systemic lupus erythematosus (SLE or lupus). Does famotidine interfere with plaquenil Hydroxychloroquine Oral Route Description and Brand Names., Chloroquine treatment for cellsHydroxychloroquine risk Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all. Famotidine Oral Route Before Using - Mayo Clinic. Hydroxychloroquine Oral Route Description and Brand.. Taking Plaquenil for Rheumatoid Arthritis. Plaquenil Hydroxychloroquine may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Plaquenil and Other Interactions. The drug may make you dizzy. You shouldn't drive, operate machinery, or perform any other activity that requires you to be alert until you are certain you can do. When phenothiazine medications, certain beta blockers, or certain parasite medicines are taken together with Plaquenil, interactions can occur that may affect the drug levels in your blood. This could increase your risk for side effects or decrease the effectiveness of the medicines.