The present invention relates to radiopharmaceuticals and in particular to a radiopharmaceutical composition comprising a compound of Formula (I): and polysorbate as an excipient. The radiopharmaceutical composition of the invention reduces problems encountered with prior art compositions comprising the same class of compounds. Also provided by the invention is a method for the preparation of the radiopharmaceutical composition of the invention as well as particular uses of the radiopharmaceutical composition.
