From the post-alcohol corn bard, similarly to the release from the molasses bard, betaine hydrochloride is obtained, the technological yield of which is 2-4 times higher than that of traditional raw materials. In comparison with the standard sample (SS) of betaine hydrochloride, the test sample has withstood all analytical tests: by physicochemical parameters, authenticity and quantitative determination. These results create the prospect of import substitution of drugs based on betaines.