DDAVP for Injection is a sterile desmopressin acetate solution at 4 mcg/mL from Ferring, supplied in convenient single-dose 1 mL ampoules. Classified as an antihemorrhagic and antidiuretic hormone analog, it is intended for parenteral use under professional supervision. Approved routes include intramuscular, intravenous, and subcutaneous administration. Each mL contains desmopressin acetate 4 mcg, sodium chloride 9 mg, hydrochloric acid q.s., and sterile water; DIN 00873993. Packaged as a 1 x 10-ampoule pack; prescription required in Canada and Quebec.