Cytidine is widely used in biochemical research and pharmaceutical applications. It serves as a precursor for the synthesis of nucleotides and nucleic acids, making it essential in studies related to DNA and RNA metabolism. In the medical field, cytidine derivatives, such as cytarabine, are utilized as chemotherapeutic agents to treat various cancers, including leukemia and lymphoma. Additionally, cytidine is employed in the production of antiviral drugs, particularly for combating viral infections like hepatitis B. It also plays a role in neuroprotective therapies, where it is used to support brain health and treat conditions such as stroke and neurodegenerative diseases. Furthermore, cytidine is a key component in the development of dietary supplements aimed at enhancing cognitive function and overall cellular health.