An alternative source of medicines: pharmaceutical utilization of animal-derived metabolites

Abstract Throughout history, various human civilizations have used raw materials obtained from the body parts, metabolic byproducts, or non-animal components of animals as medical resources for the treatment of numerous diseases and relief of symptoms. Protein structures, including hormones and enzymes, as well as various animal-derived metabolites including polysaccharides, lipids, and vitamins, have been used for the development of raw drugs. These chemicals include widely used substances including heparin, melatonin, collagen, glucosamine, chondroitin, bile acids, and coenzyme Q10. Additionally, they include materials such as snake, spider, and amphibian poisons, which are now undergoing therapeutic development. This review presents examples of animal-derived pharmaceutical raw materials that are being used as drugs and have potential in drug development research. Detailed descriptions of the chemical structures, original sources and effects of these raw materials are included. In general, the production method that was previously carried out by using animal organisms has been replaced by the utilization of recombinant technologies. The use of animals as a resource in the drug development process is expected to remain an interesting topic and further research in this area is expected. Nevertheless, it is essential not to disregard the suggestions against utilizing animals in pharmaceutical production, particularly in cases where alternative sources are accessible.