Patent ID: 7705013

Claim:
A method of treating trypanosomiasis in a mammal, which comprises administering to a mammal in need thereof an effective amount of a medicinal product comprising a plant extract comprising one or more compounds of the formula (I): wherein R1, R2, R3, R4, R5, R6, R7 and R8 represent independently of one another: a hydrogen atom; a saturated or unsaturated, linear, branched or cyclic C 1 -C 12 alkyl group; a halogen atom; halo(C 1 -C 12 )alkyl, wherein an alkyl group thereof is linear, branched or cyclic, and saturated or unsaturated; hydroxyl; nitro; cyano; mercapto; carboxylic acid; amide; amine; C 1 -C 12 alkoxy, wherein an alkyl group thereof is linear, branched or cyclic, and saturated or unsaturated; C 1 -C 12 alkyl ester, wherein an alkyl group thereof is linear, branched or cyclic, and saturated or unsaturated, secondary or tertiary alkylamine, wherein an C 1 -C 12 alkyl group(s) thereof is linear, branched or cyclic, and saturated or unsaturated; secondary or tertiary alkylamide, wherein an C 1 -C 12 alkyl group(s) thereof is linear, branched or cyclic, and saturated or unsaturated, C 1 -C 12 alkylthio, wherein an alkyl group thereof is linear, branched or cyclic, and saturated or unsaturated; C 2 -C 6 heterocyclic group containing 1 to 4 hetero atoms selected from the group consisting of sulfur, nitrogen and oxygen; a group —SO 2 —NR′R″ or a group —NR′—SO 2 —R″, in which R′ and R″ represent, independently of one another, a saturated or unsaturated, linear, branched or cyclic C1-C12 alkyl group, with the proviso that one of R 3 or R 4 is other than hydrogen; n represents 0; R represents a saturated or unsaturated, linear, branched or cyclic C 1 -C 12 alkyl group; and X represents an anion, which is either an inorganic or organic anion.