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Amorolfine or amorolfin, is a morpholine antifungal drug that inhibits the fungal enzymes D14 reductase and D7-D8 isomerase.

This inhibition affects fungal sterol synthesis pathways, depleting ergosterol and causing ignosterol to accumulate in the fungal cytoplasmic cell membranes.

Amorolfine is marketed as

It is available in the form of a 5% amorolfine nail lacquer used to treat onychomycosis (fungal infection of the toe - and fingernails).

Amorolfine 5% nail lacquer in once or twice weekly applications is 60-71% effective in treating toenail onychomycosis; complete cure rates three months after stopping treatment (after six months of treatment) were 38-46%.

However, full experimental details of these trials were not available and since they were first reported in 1992 there have been no subsequent trials.

It is a topical solution for the treatment of toenail infections.

Systemic treatments may be considered more effective.

It is approved for sale over the counter in Australia and the UK (recently re-classified to over the counter status), and is approved for the treatment of toenail fungus by prescription in other countries.

It is not approved for the treatment of onychomycosis in the United States or Canada.

Not Available

Amorolfine is an antifungal agent with fungistatic and fungicidal activity in vitro.

Amorolfine mediates its antifungal effects by interfering with ergosterol biosynthesis in the fungal cell membrane by inhibiting delta-sterol reductase and cholestenol delta-isomerase.

It alters the membrane sterol content, thereby changing the membrane permeability and disrupting metabolic processes. 2, 3 Target Actions Organism A Delta-sterol reductase ERG24 inhibitor Baker's yeast A C-8 sterol isomerase ERG2 inhibitor Baker's yeast U Sodium channel protein type 7 subunit alpha blocker Humans.

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