That depends on what the cause of the cough is. One of the reasons antibiotic-resistant bacteria have become as much a problem for animals as humans has been the use of antibiotics for conditions that didn't involve bacteria, or giving an antibiotic that wasn't effective against the bacteria if present. There are many things that can cause a cat to cough, including noninfectious conditions like asthma and heart problems. Because of this, the best first step is to have your veterinarian determine what is causing the cough and then specifically treat that cause with the most effective drug.
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