| abstract |
The invention relates to aqueous formulations for combating parasitic insects and acarina on the skin of animals, having the following composition: a) agonists or antagonists of nicotinic acetylcholin receptors of insects in a concentration of 1 to 20 wt. % in relation to the overall weight of the formulation; b) water in a concentration of 2.5 to 15 wt. %; c) solvents from the group of alcohols such as benzyl alcohol, tetrahydrofurfuryl alcohol or optionally substituted pyrrolidone in a concentration of at least 20 wt. % in relation to the overall weight of the formulation; d) solvents from the group of the cyclic carbonates or lactones in a concentration of 5 to 50.0 wt. % in relation to the overall weight of the formulation; e) optionally, other adjuvants from the group of the thickening agents, spreading agents, colorants, antioxidants, expanding agents, preserving agents, deposit builders and emulgators in a concentration of 0.025 to 10 wt. % in relation to the overall weight of the formulation. |