Multiple undefined cellular and microbial targets

Multiple undefined cellular and microbial targets is a classification used in pharmacological databases such as ChEMBL to describe agents that lack a single, specific molecular target (Gaulton et al., 2017, Nucleic Acids Research). This category typically includes broad-spectrum antiseptics and disinfectants like povidone-iodine and hydrogen peroxide, which act through non-specific chemical interactions (McDonnell & Russell, 1999, Clinical Microbiology Reviews). These agents often exert their effects by denaturing proteins, disrupting cell membranes, or causing widespread oxidative damage to both microbial and host cellular components. Because the mechanism of action involves multiple simultaneous pathways, it is difficult to pinpoint a primary therapeutic receptor. This multi-target approach is beneficial in preventing the development of antimicrobial resistance, as pathogens cannot easily bypass such generalized damage. However, the non-specific nature of these interactions also poses risks of local tissue irritation and cytotoxicity to human cells. Consequently, drugs in this category are primarily used for topical applications or environmental sterilization rather than systemic therapy.

Other names

Non-specific targetsUndefined microbial targetsMulti-target agents

Non-specific oxidative damage, protein denaturation, and membrane disruption.