Other multivalent metal cations

Other multivalent metal cations refers to a group of metal ions with a valence of +2 or higher, such as iron, aluminum, magnesium, calcium, copper, and zinc, which are distinct from monovalent ions like sodium or potassium (DrugBank). These cations are essential for numerous biological processes, serving as critical cofactors for enzymes, providing structural stability to proteins like zinc fingers, and participating in cellular signaling pathways (NIH). In clinical practice, they are the primary targets for chelating agents used to treat conditions of metal toxicity or systemic overload, such as lead poisoning, Wilson's disease, and hemochromatosis (StatPearls). Furthermore, multivalent cations are a major factor in drug-drug interactions, as they can form insoluble complexes with various oral medications, including tetracyclines, fluoroquinolones, and HIV integrase inhibitors like dolutegravir, thereby significantly reducing their absorption and therapeutic efficacy (PubMed). Proper management of these ions is crucial for maintaining physiological homeostasis and ensuring the success of pharmacological treatments (ResearchGate).

Other names

Multivalent metal ionsPolyvalent metal cationsMetal cations (multivalent)Multivalent metal salts

Chelation of metal ions to form stable, water-soluble complexes for excretion; formation of insoluble drug-metal complexes in the gastrointestinal tract to inhibit drug absorption; serving as essential cofactors for enzymatic activity.