Bifonazole

Bifonazole

Bifonazole

Chemical compound

Bifonazole (trade name Canespor among others[1]) is an imidazole antifungal drug used in form of ointments.

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It was patented in 1974 and approved for medical use in 1983.[2] There are also combinations with carbamide for the treatment of onychomycosis.

Adverse effects

The most common side effect is a burning sensation at the application site. Other reactions, such as itching, eczema or skin dryness, are rare.[3] Bifonazole is a potent aromatase inhibitor in vitro.[4][5]

Pharmacology

Mechanism of action

Bifonazole has a dual mode of action. It inhibits fungal ergosterol biosynthesis at two points, via transformation of 24-methylendihydrolanosterol to desmethylsterol, together with inhibition of HMG-CoA. This enables fungicidal properties against dermatophytes and distinguishes bifonazole from other antifungal drugs.[3][6]

Pharmacokinetics

Six hours after application, bifonazole concentrations range from 1000 μg/cm3 in the stratum corneum to 5 μg/cm3 in the papillary dermis.[3]

References

  1. [1]
    International Drug Names: Bifonazole.
  2. [2]
    Fischer J, Ganellin CR (2006). Analogue-based Drug Discovery. John Wiley & Sons. p. 502. ISBN 9783527607495.
  3. [3]
    Haberfeld H, ed. (2015). Austria-Codex (in German). Vienna: Österreichischer Apothekerverlag. Canesten Bifonazol-Creme.
  4. [4]
    Trösken ER, Fischer K, Völkel W, Lutz WK (February 2006). "Inhibition of human CYP19 by azoles used as antifungal agents and aromatase inhibitors, using a new LC-MS/MS method for the analysis of estradiol product formation". Toxicology. 219 (1–3): 33–40. doi:10.1016/j.tox.2005.10.020. PMID 16330141.
  5. [5]
    Egbuta C, Lo J, Ghosh D (December 2014). "Mechanism of inhibition of estrogen biosynthesis by azole fungicides". Endocrinology. 155 (12): 4622–4628. doi:10.1210/en.2014-1561. PMC 4239419. PMID 25243857.
  6. [6]
    Berg D, Regel E, Harenberg HE, Plempel M (1984). "Bifonazole and clotrimazole. Their mode of action and the possible reason for the fungicidal behaviour of bifonazole". Arzneimittel-Forschung. 34 (2): 139–146. PMID 6372801.

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