Betaloc is also referred to as metoprolol tartrate. There is no research data to prove that Metoprolol Tartrate and Levofloxacin cannot be taken at the same time, but in order to ensure the safety of the medication, try to take them separately and avoid taking them at the same time. 1. Metoprolol tartrate belongs to a kind of receptor blocker, the main effect of the drug is to slow down the heart rate, at the same time inhibit myocardial contractility, reduce autonomic and delay atrioventricular block, symptoms can be used for the treatment of hypertension, angina pectoris, hypertrophic cardiomyopathy, cardiac arrhythmia and so on. The drug should be avoided in combination with barbiturates (phenobarbital, isoamylbarbital), propafenone, verapamil and other drugs. 2. Levofloxacin is a quinolone antibiotic, which is mainly used for various infections caused by some sensitive bacteria. The drug should be avoided in combination with non-steroidal anti-inflammatory drugs (ibuprofen), antacids containing aluminum or magnesium (aluminum hydroxide), theophylline drugs (aminophylline) and oral hypoglycemic drugs (metformin). To ensure the safety and efficacy of the medication, it is important to follow the doctor’s instructions to the letter.