Pyridostigmine is used to improve muscle strength in the treatment of myasthenia gravis. Myasthenia gravis is a long term condition that causes your muscles to weaken and tire easily.
Pyridostigmine works by preventing the breakdown of acetylcholine in your body. Acetylcholine is needed for normal muscle function because it helps electrical signals travel between the nerves and muscles. Learn more about myasthenia gravis.