This drug can prevent another heart attack from occurring. However, you should be careful not to confuse it with metoprolol succinate (Toprol-XL). Chloroquine diphosphate lysosome Plaquenil sun reaction Metoprolol is in a group of drugs called beta-blockers. Beta-blockers affect the heart and circulation blood flow through arteries and veins. Metoprolol is used to treat angina chest pain and hypertension high blood pressure. It is also used to treat or prevent heart attack. Metoprolol may also be used for other. Not all medicines respond well when taken together, and there is always the possibility of developing negative drug interactions. With metoprolol, these interactions can cause your body to metabolize the medicines differently than intended and result in problems like excessive drug levels in your system, extremely low blood pressure, slow heart rate, or low blood sugar levels, among other things. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as. Learn more about the similarities and differences between these two drugs. While the two drugs share the same first word and both treat heart-related issues, metoprolol succinate doesn’t prevent or treat a heart attack in people who’ve already had a heart attack. Metoprolol and plaquenil Metoprolol tartrate and Plaquenil drug interactions., Drug Interactions With Metoprolol - Heart Disease Home Page Plaquenil cause dizziness after 2 years Plaquenil and other antimalarials are the key to controlling lupus long-term, and some lupus patients may be on Plaquenil for the rest of their lives. For this reason, you can think of antimalarials as a sort of “lupus life insurance.” Plaquenil What You Need to Know - Kaleidoscope Fighting Lupus. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Metoprolol tartrate and Plaquenil drug interactions - eHealthMe. Drug interactions with metoprolol tartrate can cause your body to metabolize the medicines differently than intended, alter the levels of some drugs in the body, and increase the effects of certain diabetes medicines. 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. In a randomized, double-blind, crossover study, seven healthy subjects with CYP450 2D6 extensive metabolizer phenotypes took 400 mg hydroxychloroquine or placebo twice daily for 8 days, and 100 mg metoprolol orally on the ninth day. Average metoprolol AUC increased by 65% and maximum plasma concentrations increased by 72%.