1. Agents Used in Obstetrical Care
Chapter 38
Agents Used in Obstetrical Care

2. Agents Used in Obstetrical Care
This presentation focuses on the following drug agents:
Uterine stimulants
Uterine relaxants
Lactation suppressants
Abortion inducers
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3. Oxytocin Stimulates the uterus and the mammary glands
Affects the smooth muscle of the uterus to promote childbirth
Increases frequency and force of uterine contractions
Forces milk into mammary sinuses for the to infant
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4. Uterine Relaxants Prevent premature labor Ritodrine HCl
A beta-adrenergic stimulant
Relaxes the uterus
Terbutaline sulfate (Brethine)
Stimulates beta2 receptors
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5. Lactation Suppressants
Bromocriptine mesylate (Parlodel)
A nonhormonal ergot derivative
Estrogen is no longer used.
High risk for thromboemboli and cancer of the reproductive tract
Copyright 2007 Thomson Delmar Learning, a division of Thomson Learning Inc. All rights reserved.

6. Abortion Inducers First trimester Second trimester Suction curettage
Intra-amniotic injection of hypertonic (20%) NaCl
Oxytocin
Prostaglandins
Most useful
Copyright 2007 Thomson Delmar Learning, a division of Thomson Learning Inc. All rights reserved.