Clinical data
AHFS/ Monograph
MedlinePlus a684049
ATC code D01AC03 (WHO) G01AF05 (WHO)
CAS Number 27220-47-9 YesY
PubChem (CID) 3198
DrugBank DB01127 YesY
ChemSpider 3086 YesY
KEGG D03936 YesY
ECHA InfoCard 100.043.932
Chemical and physical data
Formula C18H15Cl3N2O
Molar mass 381.683 g/mol
3D model (Jmol) Interactive image
Chirality Racemic mixture

Econazole (commonly used as the nitrate salt) is an antifungal medication of the imidazole class.[1] It is used as a cream under the brand names Spectazole (United States), Ecostatin (Canada), Pevaryl (Western Europe), and Pevisone (the latter consisting of the combination econazole/triamcinolone) to treat skin infections such as athlete's foot, tinea, pityriasis versicolor, ringworm, and jock itch. It is also sold in Canada under the brand name Ecostatin as vaginal ovules to treat vaginal thrush. In Asia, it is sold under the brand name Endix-G (by Dongkwang, Korea), while in Thailand, it is sold as Ecosone by Qualimed. In Taiwan, it is sold as Vivicome Cream, manufactured by Yong Chang Pharmaceuticals. In Egypt, it is sold as a foam spray by ATM. In Bangladesh, it is sold under the brand name Ecoderm by Rephco Pharmaceuticals Ltd. The combination of econazole nitrate with triamcinolone acetonide is also available under the brand name Ecoderm-TA.[2] Econazole nitrate exhibits strong anti-feeding properties against the keratin-digesting common clothes moth Tineola bisselliella.[3]

Adverse effects

About 3% of patients treated with econazole nitrate cream reported side effects. The most common symptoms were burning, itching, erythema, and one outbreak of a pruritic rash.[4]


Imidazoles devoid of the nitro group no longer have any antiprotozoal activity, however, such drugs are effective antifungal agents.

Econazole synthesis:[5] DE 1940388  U.S. Patent 3,717,655 (1970, 1973 both to Janssen).

Alkylation of imidazole (2) with bromoketone (1) prepared from o,p-dichloroacetophenone affords the displacement product (3). Reduction of the ketone with sodium borohydride gives the corresponding alcohol (4). Alkylation of the alkoxide from that alcohol with p-chlorobenzyl chloride leads to econazole (5); alkylation with o,p-dichlorobenzyl chloride gives miconazole.


  1. Thienpont, D; Van Cutsem, J; Van Nueten, JM; Niemegeers, CJ; Marsboom, R (1975). "Bilogical and toxicological properties of econazole, a broad-spectrum antimycotic". Arzneimittel-Forschung. 25 (2): 224–30. PMID 1173036.
  2. Product descriptions at REPHCO Pharmaceuticals Limited, Bangladesh. Retrieved June 2012
  3. Sunderland, M. R.; Cruickshank, R. H.; Leighs, S. J. (2014). “The efficacy of antifungal azole and antiprotozoal compounds in protection of wool from keratin-digesting insect larvae”. Textile Research Journal 84 (9): 924–931.
  4. Perrigo Econazole Nitrate Cream Product Description. 2012.
  5. Godefroi, E. F.; Heeres, J.; Van Cutsem, J.; Janssen, P. A. J. (1969). "Preparation and antimycotic properties of derivatives of 1-phenethylimidazole". Journal of Medicinal Chemistry. 12 (5): 784. doi:10.1021/jm00305a014.
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