Pribecaine (also known as RG-1812 ) is 3-methoxy-benzoic acid derivative patented by Hungarian multinational pharmaceutical and biotech company Richter, Gedeon, Vegyeszeti Gyar Rt. as local anesthetics. Pribecaine inhibited the generation of action potentials in the giant neurons of the mollusk (Lymnaea stagnalis) and prevented the excitatory effect of acetylcholine. During the inhibition of action potential, the rising phase and repolarization were simultaneously damaged, indicating a blockade of both the Na- and K-channels.