<p>Pyridostigmine tablet is an orally active cholinesterase inhibitor. Pyridostigmine inhibits the destruction of acetylcholine by cholinesterase and thereby permits freer transmission of nerve impulses across the neuromuscular junction. Pyridostigmine is an analog of neostigmine, but differs from it in certain clinically signihcant respects; for example, Pyridostigmine is characterized by a longer duration of action and fewer gastrointestinal side effects.</p>