Combinations
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United States of America Patent
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Oct 22, 2002
Grant Date -
N/A
app pub date -
Nov 20, 2000
filing date -
Nov 25, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An active ingredient combination for the simultaneous control of ecto- and endoparasites, especially mites, ticks and nematodes, on productive livestock, domestic animals and pets, is described, which comprises the active ingredients (1) 1-[4-chloro-3-(3-chloro-5-trifluoromethyl-2-pyridyloxy)phenyl]-3-(2,6-difluorobenzoyl)urea and (2) a compound of formula (i) ##STR1## wherein R.sub.1 is hydrogen or one of radicals ##STR2## R.sub.2 is --CH(CH.sub.3)--CH.sub.3, --CH(CH.sub.3)--C.sub.2 H.sub.5, --C(CH.sub.3).dbd.CH--CH(CH.sub.3).sub.2 or cyclohexyl; R.sub.3 is hydrogen or hydroxy if the bond between atoms 22 and 23 represents a double bond, or is hydrogen or the group .dbd.N--O--CH.sub.3 if a single bond is present between atoms 22 and 23; and R.sub.4 is HO-- or HO--N.dbd., in free form or in the form of a physiologically acceptable salt.
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