Endo) Vasopressin 과 Oxytocin 의 유사성

Oxytocin is also a nonapeptide, and it differs from AVP only at positions 3 and 8 (Fig. 340-1). However, it has relatively little antidiuretic effect and seems to act mainly on mammary ducts to facilitate milk letdown during nursing. It also may help initiate or facilitate labor by stimulating contraction of uterine smooth muscle, but it is not clear if this action is physiologic or necessary for normal delivery.

Post-partum때 유도분만 한 산모들의 Diuresis의 원인 중 하나를 차지하기도 하겠지