Pyrromecaine is a local anesthetic used for surface anesthesia. Pyromecaine has a wide spectrum of antiarrhythmic action, exerts a favorable effect on the contractility of the left ventricle, and on the myocardial blood flow following the ligation of the
Demecarium Free Base is a quaternary ammonium compound that serves as a long-acting cholinesterase inhibitor with parasympathomimetic activity. When used topically, demecarium inactivates both pseudocholinesterase and acetylcholinesterase, thereby preventing acetylcholine breakdown and increasing acetylcholine activity.