Half-life: <20 minutes 
Metabolism:  liver, kidney extensively; CYP450: unknown
Excretion:  urine (5-6% unchanged)
Mechanism of Action: "directly stimulates<unk>  and V2 receptors, resulting in<unk> oconstriction and antidiuresis" <unk> 
↑SVR
↓HR
Vasopressin
Angiotensin II
Hyoscyamine
Desmopressin
Insulin
Oxytocin
Norepinephrine
Antivenin