The present invention relates to orally administrable pastes of toltrazuril sulfone, comprising active compound in a concentration of 0.1-20% by weight, with a particle size of from 1 to 10.10-6 m, polyacrylic acids having a degree of polymerization of about 3.106 in a concentration of 0.1-5% by weight and, if appropriate, preservatives and moisturizers, and the remainder to 100% by weight water.