Microcid (Hydrogen Peroxide)

Microcid, a hydrogen peroxide‑based antiseptic, is applied to the skin to reduce microbial load in various superficial conditions.

• Skin antisepsis: reduces bacterial and fungal presence on intact or abraded skin before surgical or invasive procedures.
• Wound cleansing: helps disinfect minor cuts, abrasions and superficial burns, supporting a clean healing environment.
• Surface decontamination: used to clean small areas of skin or medical equipment where a rapid antiseptic action is required.

• Hydrogen peroxide acts as a strong oxidizing agent. Upon contact with microbial cells, it releases reactive oxygen species that damage lipids, proteins and nucleic acids, leading to loss of membrane integrity and cell death. This non‑specific oxidative damage rapidly reduces bacterial, viral and fungal viability on the skin surface. The rapid breakdown into water and oxygen also minimizes residual chemical presence, making it suitable for brief topical applications.

Topical application of hydrogen peroxide may be associated with local and, rarely, systemic adverse reactions.

Common Side Effects

• Skin irritation: mild redness or tingling at the application site.
• Stinging sensation: transient burning feeling during or shortly after use.
• Itching: occasional pruritus especially on sensitive skin.
• Dryness: temporary loss of skin moisture after repeated applications.

Serious or Rare Side Effects

• Severe chemical burn: deep tissue injury if applied to large areas or prolonged contact.
• Allergic contact dermatitis: rash, swelling or vesicles indicating hypersensitivity.
• Systemic toxicity: rare absorption leading to nausea, vomiting or metabolic disturbances.

When using Microcid, observe the following precautions to ensure safe and effective application.

• Avoid use on deep or puncture wounds: risk of tissue damage and delayed healing.
• Do not apply to mucous membranes or eyes: may cause severe irritation.
• Limit application area: avoid covering large skin surfaces to prevent systemic absorption.
• Keep out of reach of children: accidental ingestion can cause gastrointestinal irritation.
• Do not use on compromised skin with active infection without medical advice.
• Store at below 25°C: keep in the original container, protect from moisture and heat.

Hydrogen peroxide can interact with certain topical agents, altering its safety profile.

Major Interactions (Avoid)

• Concurrent use with other strong oxidizing antiseptics (e.g., povidone‑iodine): may increase local tissue irritation and chemical burns.
• Combination with topical silver‑based dressings: can cause precipitation and reduce antimicrobial efficacy.

Moderate Interactions (Monitor Closely)

• Co‑application with topical anesthetics containing vasoconstrictors: may enhance burning sensation.
• Use with corticosteroid creams: may affect wound healing dynamics.
• Mixing with alcohol‑based solutions: can increase volatility and skin dryness.