Cetrimide is a quaternary ammonium preservative used to limit bacterial growth

Cetrimide is toxic to bacteria. Local application is non-toxic to humans. However, overdose or accidental oral intake may cause gastrointestinal irritation

Cetrimide agar is a type of agar which allows selective isolation of pseudomonas aeruginosa

Cetrimide cream is a cream for topical application for prevention of infection of cuts, grazes, insect bite, minor burns, wounds and scalds)

Cetrimide is a quaternary ammonium disinfectant having bactericidal activity against both gram-positive and gram-negative organisms.