Ontario Registered Pharmacy Technician (RphT) Practice Exam

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Which of the following medications is indicated for induction of labour contractions?

Ritodrine
Oxytocin
Medroxyprogesterone
Estrogen

The correct answer is: Oxytocin

Oxytocin is the only option that is indicated for induction of labor contractions. Ritodrine is a beta-agonist that is used to stop preterm labor, not induce labor. Medroxyprogesterone is a synthetic progestin that is used for contraception and hormone replacement therapy, not for induction of labor. Estrogen is not used for induction of labor but is sometimes given in combination with oxytocin to increase its effectiveness.