Lidocaine powder, known chemically as C14H22N2O and identified by CAS number 137-58-6, is a cornerstone of modern medical practice due to its potent pharmacological properties. Understanding the science behind its efficacy is crucial for appreciating its widespread applications.

At its core, Lidocaine powder functions as a voltage-gated sodium channel blocker. When applied locally or administered systemically, it penetrates the lipid bilayer of nerve cell membranes. Inside the nerve axon, it binds to the intracellular side of the sodium channel in its open state. This binding prevents the influx of sodium ions, which is essential for the propagation of action potentials. Consequently, nerve conduction is blocked, leading to a reversible loss of sensation – the effect of local anesthesia.

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Beyond its anesthetic capabilities, Lidocaine powder also exhibits significant anti-arrhythmic properties. In cardiac tissue, it similarly targets sodium channels, but its effect here is to reduce the rate of depolarization and slow conduction velocity through the atrioventricular node and His-Purkinje system. This action is vital in stabilizing heart rhythm during episodes of ventricular tachycardia or fibrillation, a critical application often highlighted when discussing 'lidocaine powder for pain killer' is secondary to its cardiac benefits in acute situations.

The compound's lipophilicity contributes to its ability to rapidly penetrate nerve membranes and achieve a higher protein binding rate compared to older anesthetics like procaine. This translates to a faster onset of action and a longer duration of effect, enhancing its clinical utility. When considering where to 'buy lidocaine powder online', choosing a reputable supplier like NINGBO INNO PHARMCHEM CO.,LTD. ensures you receive a product with reliable 'lidocaine powder price' and guaranteed performance.

The 'pharmaceutical intermediate' role of Lidocaine powder also signifies its foundational importance in drug development, serving as a precursor for various medicinal compounds. The scientific precision with which Lidocaine powder operates makes it an indispensable tool for healthcare professionals worldwide.