12 Questions
Which drug is used for the relief of dysmenorrhea and has a tocolytic effect by inhibiting prostaglandin synthesis?
Indomethacin
What is the main adverse effect associated with NSAIDs like indomethacin when used as tocolytics?
Premature closure of ductus arteriosus
Which drug is given by IV infusion, has a depressant action on uterine smooth muscle, and is used to control convulsions and blood pressure in toxemia of pregnancy?
Magnesium sulfate
Which hormone has relaxant effects on the uterus, inhibits cytokine production, and is used in the treatment of threatened abortion?
Progesterone
Which drug acts by inhibiting the influx of Ca$^{2+}$ into myometrial cells?
Nifedipine
Which of the following drugs competitively blocks the oxytocin receptors of the uterus?
Atosiban
Which condition is a contraindication for the use of selective $eta_2$-agonists as uterine relaxants?
Hypertension
Which drug may cause cardiovascular collapse if it escapes into circulation after intra-amniotic injection?
Dinoprostone
Why is oxytocin preferred for induction of labor?
It contracts only the fundus and body, not interfering with fetal descent.
In postpartum hemorrhage, why is oxytocin preferred over methyl-ergometrine?
Oxytocin does not interfere with fetal descent.
Which type of drug is oxytocin in obstetrics and gynecology?
Hormone used for ovulation induction
What role does oxytocin play in maintaining placental blood flow during labor?
It induces relaxation between uterine contractions.
Test your knowledge on drugs used as abortifacients and uterine relaxants, including their side effects and administration methods. Learn about common side effects like uterine pain, nausea, and vomiting, as well as the risks associated with intra-amniotic injections. Explore different tocolytics that inhibit uterine contractions.
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