Lipophilic drug molecules in plasma

Lipophilic drug molecules in plasma refer to a broad category of pharmacological agents characterized by high lipid solubility and low water solubility. These molecules typically possess a high partition coefficient (LogP) and exhibit extensive binding to plasma proteins such as albumin and alpha-1-acid glycoprotein, or partition into lipoproteins and cell membranes. In clinical pharmacology, their lipophilicity dictates their volume of distribution, metabolic pathways, and ability to cross the blood-brain barrier. While not a biological target itself, this group of molecules is the focus of specific therapeutic interventions in toxicology, such as Intravenous Lipid Emulsion (ILE) therapy. ILE acts as a 'lipid sink' to sequester these lipophilic toxins from the plasma and vital organs, thereby reducing their free concentration and mitigating systemic toxicity.

Other names

Lipophilic drugsHydrophobic drugs in circulationPlasma-bound lipophilic compounds

Not applicable as this is a category of molecules rather than a biological target. In the context of toxicology, these molecules are sequestered by Intravenous Lipid Emulsion (ILE) therapy via the lipid sink effect.