Non-specific blood and vascular components

Non-specific blood and vascular components is a pharmacological classification used to describe therapeutic interventions that act through physical or broad physiological mechanisms within the circulatory system rather than by binding to a specific molecular target like a receptor or enzyme (ChEMBL, CHEMBL614451). This category typically includes plasma expanders, such as albumin and dextrans, and osmotic agents like mannitol, which are used to manage intravascular volume and fluid distribution (StatPearls, NBK551644). These agents are primarily utilized in clinical settings to treat conditions such as hypovolemic shock, hemorrhage, and cerebral edema by modulating oncotic or osmotic pressure (PubMed, PMID: 28613507). Because these effects are mediated by the collective properties of blood or the physical space of the vasculature, this "target" does not correspond to a single gene product or protein structure. Consequently, it is often used as a placeholder in drug databases for agents with non-specific or physical modes of action (PubMed, PMID: 30020619).

Other names

Blood componentsVascular componentsPlasmaIntravascular volumeWhole blood

Expansion of intravascular volume through increased oncotic pressure or osmotic fluid shifts.