text: The present study describes the characterization of the binding properties and autoradiographic distribution of a new nonpeptide antagonist of << neurotensin receptors >>, [3H]SR 142948A ([[ 2-[[5-(2,6-dimethoxyphenyl)-1-(4-(N-(3-dimethylaminopropyl)-N-methyl carbamoyl)-2-isopropylphenyl)-1H-pyrazole-3-carbonyl]-amino]-ad amantane-2-carboxylic acid, hydrochloride ]]), in the rat brain.