What it does
Orthopthaladehyde is a chemical used in various applications, particularly in medical and laboratory settings.
Commonly used for: disinfection, sterilization
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Sourcing - Kenya onlyRegistration & product details
Source: Tanzania Medicines and Medical Devices Authority · fetched 2026-03-11 23:50:35 · updated 2026-06-15 06:30:56
About this medicine
Orthopthaladehyde is a chemical used in various applications, particularly in medical and laboratory settings.
What it treats
- disinfection
- sterilization
How it works
It works by killing bacteria and other harmful microorganisms, making it useful for cleaning surfaces and medical equipment.
Who it's for
It is used by healthcare professionals and in laboratories that require strict hygiene standards.
AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.
Clinical monograph: orthopthaladehyde
Orthophthalaldehyde (OPA) is a dialdehyde compound primarily used as a disinfectant and sterilizing agent in medical settings. It has gained attention for its efficacy in eliminating a broad spectrum of microorganisms, including bacteria, viruses, and fungi. OPA is particularly noted for its use in high-level disinfection of heat-sensitive medical instruments and surfaces, providing an alternative to glutaraldehyde with a more favorable safety profile.
Indications
- High-level disinfection of medical and surgical instruments
- Sterilization of heat-sensitive medical devices
- Surface disinfection in healthcare settings
Dosage
Children: Refer to specific product guidelines for appropriate concentrations and exposure times for disinfection procedures.
Adults: Refer to specific product guidelines for appropriate concentrations and exposure times for disinfection procedures.
Mechanism of action
Orthophthalaldehyde exerts its antimicrobial effects through its ability to cross-link proteins. This cross-linking disrupts the structure and function of microbial proteins, leading to cell damage and death. The compound reacts with amino acids in proteins, particularly lysine and cysteine residues, which is essential for the integrity of microbial cell membranes and metabolic processes.
Pharmacodynamics
The antimicrobial activity of orthophthalaldehyde is both concentration-dependent and time-dependent. Higher concentrations and longer exposure times increase the efficacy of disinfection. The compound is effective against a wide range of pathogens, including Mycobacterium tuberculosis, viruses such as HIV, and various bacteria, making it a versatile agent in infection control.
Pharmacokinetics
Orthophthalaldehyde is typically used in solution form for disinfection purposes. Due to its application as a surface disinfectant, systemic absorption and pharmacokinetic parameters such as absorption, distribution, metabolism, and excretion in the human body are less relevant. The compound is known to be rapidly effective at low concentrations, but specific pharmacokinetic data in humans are limited due to its primary use in external disinfection.
Adverse effects
- Irritation at the site of application
- Allergic reactions
- Headache
- Nausea
Precautions
- Use with caution in patients with a history of allergic reactions to similar compounds
- Avoid contact with eyes and mucous membranes
- Use in well-ventilated areas to minimize inhalation exposure
Pregnancy
Safety during pregnancy has not been established. Use only if the potential benefit justifies the potential risk to the fetus.
Breast-feeding
It is not known whether orthopthaladehyde is excreted in human milk. Caution is advised when administering to nursing mothers.
Storage
Store in a cool, dry place away from light. Keep out of reach of children.
Formulations
- Solution for disinfection
- Liquid for sterilization
AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.