What does the prescribing information say about alimemazine tartrate use during pregnancy?

Alimemazine tartrate should be avoided in pregnancy unless the physician considers it essential; human data are limited despite longstanding use without apparent harm, some phenothiazines harmed animals, and neuroleptics may prolong labour (withhold until cervical dilation of 3–4 cm), with possible neonatal lethargy, paradoxical hyperexcitability, tremor or low Apgar score.