Enlargement of the salivary gland after ritodrine treatment in pregnant women.

Preterm labour continues to complicate a substantial number of pregnancies, and preterm delivery accounts for most early neonatal deaths not due to congenital abnormalities.' Ritodrine hydrochloride, a 13 sympathomimetic agent with predominant effects on 0 receptors such as those of the uterus,2 is effective in suppressing premature uterine contractions.2 We describe six pregnant women given ritodrine hydrochloride who developed swelling of the salivary glands with hypersecretion of amylase.