Feline esophagi are sensitive to retained irritants, and certain tablets, notably some antibiotics, can lodge after a dry swallow and cause inflammation or later strictures.
The key preventive move is chasing every pill with a small syringe of water or a bite of wet food to deliver it into the stomach, often called a chaser.
Watch afterward for repeated swallowing, regurgitation, or food refusal, which can signal a stuck pill or irritation; contact the vet if these persist.
Whether a specific drug needs a chaser, can be crushed, or comes in another form is the prescribing vet's call; never split extended-release or enteric products yourself.
