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mercury compounds

S01AX01

Forms & Strengths

Ophthalmic ointment 1% (Yellow Mercuric Oxide)
Topical ammoniated mercury ointment 5%

Adult Dosing

Ophthalmic: Apply a small amount to affected eye(s) up to 3-4 times daily as directed.
Topical: Apply thinly to affected skin areas 1-2 times daily.

Pediatric Dosing

Safety and efficacy not established in pediatric populations.
Use generally avoided due to systemic toxicity risks (e.g., acrodynia, nephrotoxicity).

Indications

Historically used as an anti-infective and antiseptic agent for blepharitis and conjunctivitis.
Rarely used adjunctively for minor localized skin infections.

Mechanism of Action

Exerts antimicrobial and antiseptic effects via precipitation of bacterial proteins.
Binds to sulfhydryl groups (-SH) of vital microbial enzymes, inactivating them.

Contraindications

Hypersensitivity to mercury or any component of the formulation.
Application over large areas of broken or damaged skin due to systemic absorption risks.
Deep puncture wounds, animal bites, or serious burns.

Adverse Reactions

Local irritation, burning, stinging, and allergic contact dermatitis.
Prolonged use may lead to local tissue argyria-like pigmentation (mercurialentis) or systemic toxicity.
Systemic symptoms of mercury toxicity: renal impairment, peripheral neuropathy, and stomatitis.

Drug Interactions

Concomitant topical products containing halogens (iodides, bromides) may form caustic compounds.
Avoid concurrent use with other topical heavy metal preparations to prevent cumulative toxicity.

Curated Content: Needs Vetting Before Put to Clinical Use