0.55% Ortho-phthalaldehyde Ortho-phthalaldehyde 0.55% (OPA) was introduced to marked as Cidex OPA Solution in 1999.
OPA is commonly used as a high-level disinfectant for medical instruments. Disinfection with OPA is indicated for semi-critical instruments that come into contact with mucous membranes or broken skin, such as specula, laryngeal mirrors, and internal ultrasound probes.
Why the EPA wants you to eliminate glutaraldehyde use:**
Glutaraldehyde is a potent occupational skin irritant.
Glutaraldehyde is a recognized cause of occupational asthma.
Patients, visitors and hospital employees may be needlessly exposed to glutaraldehyde vapors in patient rooms and clinic areas where open bins or poorly ventilated reprocessing units are in use.
Cost-competitive alternatives exist that meet infection control standards and reduce risks to patient, visitor and employee health.
Several regulatory organizations, including OSHA and NIOSH, are re-evaluating their exposure limits for glutaraldehyde.