It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes, which transmit the parasites that cause the infection, usually in tropical and subtropical parts of the world. Is chloroquine safe during pregnancy Plaquenil cause weight loss Chloroquine ototoxicity The study is based on metoprolol tartrate and hydroxychloroquine sulfate the active ingredients of Metoprolol tartrate and Plaquenil, respectively, and Metoprolol tartrate and Plaquenil the brand names. Other drugs that have the same active ingredients e.g. generic drugs are not considered. Dosage of drugs is not considered in the study. Plaquenil hydroxychloroquine is considered an older DMARD disease modifying anti-rheumatic drug. Plaquenil was actually first classified as an antimalarial drug, but it is also used to treat certain rheumatic and autoimmune conditions which are unrelated to malaria. Metoprolol/Selected CYP2D6 Inhibitors Interactions. This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment. For example, it may be combined with an antibiotic to treat chronic Q-fever, which humans usually catch from farm animals or raw milk. Plaquenil is used to treat other types of infections too. Metoprolol and hydroxychloroquine Does plaquenil have a negative effect on metoporol?, Taking Plaquenil for Rheumatoid Arthritis Chloroquine sulphate chronic discoid lupus erythematosusPlaquenil utiChloroquine resistance areas Hydroxychloroquine Plaquenil If you are taking metoprolol tartrate and hydroxychloroquine together, your body may metabolize metoprolol tartrate differently than intended. This can cause an increased level of metoprolol tartrate in your body. Other Drugs That Can Interact With Metoprolol Tartrate. Interactions between Plaquenil Oral and selected-cyp2d6.. Mechanisms of action of hydroxychloroquine and chloroquine.. Metoprolol is used alone or in combination with other medications to treat high blood pressure. It also is used to prevent angina chest pain and to improve survival after a heart attack. Metoprolol also is used in combination with other medications to treat heart failure. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Metoprolol is the generic form of the brand-name drug Lopressor, prescribed to treat high blood pressure and prevent angina chest pain. Metoprolol is a type of medication called a beta blocker.