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Cationic Surfactant Membrane Disruption (Cetrimide)

Molecular classification
Quaternary Ammonium Compounds, Cationic Surfactants
01

Overview

Cetrimide is a cationic surfactant mixture, primarily composed of tetradecyltrimethylammonium bromide (TTAB), cetrimonium bromide (CTAB), and laurtrimonium bromide (DTAB). It acts by disrupting microbial cell membranes through electrostatic interactions with negatively charged components, leading to increased permeability and cell death. It is used as an antiseptic/disinfectant in wound cleaning and topical formulations and has experimental uses in inhibiting endocytosis.

Other names
CetrimideTetradecyltrimethylammonium bromideTTABMiTMABCetrimonium bromideCTABLaurtrimonium bromideDTABLTAB
02

Mechanism of action

Disrupts microbial membranes via electrostatic interaction with phospholipids, leading to increased membrane permeability and cell death.

03

Biological functions

AntisepticDisinfectantMembrane disruptionEndocytosis inhibition (experimental)
04

Disease associations

Infection
05

Safety considerations

Skin corrosion/irritationEye damageHarmful if swallowedPotential for resistance development
06

Interacting drugs

Savlon (component)

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