Ondansetron Safe During Pregnancy Key point: No significant association between the antiemetic on- dansetron and adverse pregnancy outcomes. Citation: Pasternak B, Svanstrom H, Hviid A. Ondansetron in pregnancy and risk of adverse fetal outcomes. N Engl J Med 2013;368:814-823. In this retrospective cohort study, ondansetron had been prescribed for nausea and vomiting in almost 2000 of some 600,000 pregnancies. Ondansetron users were no more likely than nonusers to experience spontaneous abortion or stillbirth, or to …
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