pyridostigmine bromide and its Impurities

Pyridostigmine is used for treating skeletal muscle weekness caused due to long-term neuromuscular disease(Myasthenia gravis). It is an is an acetylcholinesterase inhibitor in the cholinergic family of medications.Used in combintion with atropine.Reference standards of Pyridostigmine Bromide API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.