Hexamidine Gilbert (Hexamidine Diisetionate)

Hexamidine Gilbert is employed as a topical antiseptic for a variety of skin-related purposes.

• Reducing bacterial colonisation on intact or minorly damaged skin.
• Preparing the skin before minor surgical or invasive procedures.
• Managing superficial skin infections caused by susceptible microorganisms.
• Supporting wound care where a non‑prescription antiseptic is appropriate.
• Providing adjunctive hygiene in dermatological settings.

• Hexamidine diisetionate belongs to the bisbiguanide class of antiseptics. It exerts its antimicrobial activity by binding to negatively charged components of microbial cell membranes, leading to increased membrane permeability and loss of essential intracellular contents. The compound also interferes with key enzymatic processes, disrupting metabolic pathways and ultimately causing cell death of a broad range of bacteria and some fungi when applied to the skin surface.

Adverse reactions to Hexamidine Gilbert are generally uncommon but can occur with topical use.

Common

• Mild skin irritation or erythema at the application site.
• Transient itching or burning sensation.
• Dryness or peeling of the treated skin.
• Localized allergic contact dermatitis.

Serious

• Severe allergic reaction (e.g., angioedema, urticaria).
• Extensive skin necrosis or ulceration.
• Systemic hypersensitivity manifestations such as anaphylaxis.

When using Hexamidine Gilbert, consider the following safety measures.

• Apply only to intact or minimally damaged skin; avoid use on large open wounds.
• Perform a patch test if a history of skin sensitivity exists.
• Discontinue use and seek medical advice if signs of severe irritation develop.
• Keep the product out of reach of children and avoid ingestion.
• Store according to label instructions, protecting from excessive heat and moisture.
• Consult a healthcare professional before use on compromised skin or in immunocompromised individuals.

Topical antiseptics can interact with other skin products or systemic agents.

Avoid

• Concurrent use with other topical antimicrobial agents that may increase irritation risk.
• Application over areas treated with strong corticosteroids without medical guidance.

Use with caution

• Combining with occlusive dressings that may enhance absorption.
• Use in patients receiving systemic antibiotics, as it may affect local flora.
• Application alongside skin moisturizers containing alcohol or fragrance, which could increase irritation.
• Use in individuals using phototherapy, as some antiseptics may sensitize skin to light.