Pharmaceutical composition containing an N-phenylpyrazole derivative, and use thereof for preparing a topical veterinary for flea control

  • US 8,501,799 B2
  • Filed: 12/16/2008
  • Issued: 08/06/2013
  • Est. Priority Date: 12/16/2008
  • Status: Expired due to Fees
First Claim
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1. A liquid pharmaceutical composition, comprising:

  • as active principle, 5-amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-(trifluoromethylsulfinyl)-1H-pyrazole-3-carbonitrile (fipronil),at least 5% (weight/volume) of benzyl alcohol, and at least 50% (weight/volume) of an organic solvent chosen from propylene glycol monomethyl ether, dipropylene glycol n-butyl ether, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether and propylene glycol, and mixtures thereof,it being understood that said composition is free of C1-C4 alcohol.

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