Desmopressin is a synthetic analogue of vasopressin, which has little effect on the V1 receptors. It is almost a pure antidiuretic. It is also the only drug useful for treatment of platelet dysfunction induced by clopidogrel, aspirin, NSAIDs in general, and uraemia. One can read more about this use of DDAVP in this 1997 article by Pier Manucci. But, you haven't got all day. So, in brief:
For details of reversal of anticoagulation, I direct you all to the NHMRC guidelines:
Clinical practice guidelines on the use of blood components (2001)
Schulman, Sam. "DDAVP—the multipotent drug in patients with coagulopathies." Transfusion medicine reviews 5.2 (1991): 132-144.
Mannucci, Pier Mannuccio. "Desmopressin (DDAVP) in the treatment of bleeding disorders: the first 20 years." Blood 90.7 (1997): 2515-2521.
Mannucci, Pier Mannuccio, et al. "Deamino-8-D-arginine vasopressin shortens the bleeding time in uremia." New England Journal of Medicine 308.1 (1983): 8-12.
Colucci, Giuseppe, et al. "The effect of desmopressin on platelet function: a selective enhancement of procoagulant COAT platelets in patients with primary platelet function defects." Blood 123.12 (2014): 1905-1916.