The proposed mechanism is inhibition of CYP450 2D6 hepatic metabolism by hydroxychloroquine. 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. Does plaquenil help restore hair loss How dispose of chloroquine safely Ocular testing for plaquenil Effect of chloroquine in pregnancy and breastfeeding Your medicine may need to be healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first. 1. Lopressor metoprolol tartrate US prescribing information. Succinate toprol is the long acting form of metoprolol where as tartrate lopressor is the shorter acting form. Toprol can be taken once a day and Lopressor metoprolol tartrate is usually taken at least twice a day. Drug interactions are reported among people who take Metoprolol succinate and Plaquenil together. This study is created by eHealthMe based on reports of 144 people who take Metoprolol succinate and Plaquenil from Food and Drug Administration FDA, and is updated regularly. eHealthMe has been monitoring drugs and supplements since 2008. No adverse effects were reported and the clinical significance is unknown. Average metoprolol AUC increased by 65% and maximum plasma concentrations increased by 72%. Can plaquenil and metoprolol tartrate be taken together Metoprolol Tartrate Oral Interactions with Other Medication, Metoprolol tartrate and metoprolol succinate can they be. Hydroxychloroquine for bursitisIs plaquenil an nsaid drugCognative issues plaquenilPlaquenil visual field codingChloroquine phosphate nano reef All generic drug interactions for metoprolol tartrate oral lists will include brand and generic names 14 serious drug interactions. 366 significant drug interactions. 44 minor drug interactions. Metoprolol tartrate oral and propranolol oral Drug Interactions - RxList. Metoprolol succinate and Plaquenil drug interactions.. Hydrochlorothiazide and metoprolol Uses, Side Effects.. Two of the most commonly used cardioselective beta-blockers are metoprolol and atenolol. Metoprolol is used for the management of angina pectoris, high blood pressure, irregular heart rhythm and prevention of heart attacks and heart failure. It is also said to be used for migraine headaches. 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%. Research on the web says that Atenolol is much longer lasting than Metoprolol and suggests that Metoprolol Tartrate has to be taken twice a day. Atenolol only once ! Atenolol only once ! Strangle, again, my Cardiologist who issued a prescription for Atenolol upon my request to be allowed to try it is for 25 mg twice a day.