Annotation:
The article will discuss the topic of heterologous serum - a biological product that is made from the blood and other biological fluids of healthy people. This work will examine the history of the emergence and development of heterologous sera, as well as their use in various fields of medicine and pharmacology. Scientific studies supporting the effectiveness of the use of heterologous whey preparations will be presented and the risks and side effects of their use will be discussed. In addition, ethical and legal aspects of the production and use of heterologous therapies, including international regulation, will be addressed. This article may be useful for those interested in scientific research in the fields of biology, medicine, and pharmacy, as well as for anyone interested in modern medical technologies and treatment methods.