Are cats allergic to human antibiotics?

While certain medications may be harmful to cats if ingested, it's not accurate to say that cats are allergic to all human antibiotics. Cats can safely take several antibiotics prescribed by veterinarians for specific infections or conditions. The appropriate antibiotic and dosage for a cat should be determined by a veterinarian based on the cat's specific health needs. Randomly administering human antibiotics to cats can be dangerous, so consulting with a veterinarian is always recommended.