Abstract: The invention relates to a rodenticide composition in the form of a cereal bar. The invention relates to a solid rodenticide composition characterized in that it is in the form of agglomerated cereals and/or grains including: 50% to 98% by weight, relative to the total weight of the composition, of at least one cereal and/or of at least one grain, whole or crushed; 2 to 25%, relative to the total weight of the composition, of a binder; 0 to 30%, relative to the total weight of the composition, of plant or animal fat in solid form; 0 to 16%, relative to the total weight of the composition, of at least one additive; and 0.0005% to 6%, relative to the total weight of the composition, of rodenticide poison.