The present invention provides an aqueous pharmaceutical composition comprising the fusion protein whose amino acid sequence is set forth as SEQ ID No:1 and an aqueous solution comprising 40 to 60 mM sodium phosphate. The present invention further provides a lyophilized pharmaceutical composition, an reconstituted solution, a sealed package comprising the lyophilized pharmaceutical composition, and a vial comprising the lyophilized pharmaceutical or the reconstituted solution. The present invention also provides a method of producing the lyophilized pharmaceutical composition and the sealed package. The present invention also provides a method of treating a human having cocaine seeking behavior, and methods of using the aqueous pharmaceutical composition and lyophilized pharmaceutical composition.
