Pregnant women who took the antiviral drugs oseltamivir (Tamiflu) and zanamivir (Relenza) during pregnancy did not have an increased risk of adverse neonatal outcomes, according to a study of European registries.
Instead, exposure to neuraminidase inhibitors was linked with a slightly reduced risk of low birth weight (adjusted odds ratio 0.77, 95% CI 0.65-0.91) and giving birth to a small for gestational age infant (adjusted OR 0.72, 95% CI 0.59-0.87), reported Sophie Graner, MD, of Karolinska Institutet in Sweden, and colleagues.
This study included the period of the 2009-2010 influenza A/H1N1 pandemic, the authors noted, when the number of women who took neuraminidase inhibitors during pregnancy "increased markedly" compared with previous years, they wrote in BMJ.
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Instead, exposure to neuraminidase inhibitors was linked with a slightly reduced risk of low birth weight (adjusted odds ratio 0.77, 95% CI 0.65-0.91) and giving birth to a small for gestational age infant (adjusted OR 0.72, 95% CI 0.59-0.87), reported Sophie Graner, MD, of Karolinska Institutet in Sweden, and colleagues.
This study included the period of the 2009-2010 influenza A/H1N1 pandemic, the authors noted, when the number of women who took neuraminidase inhibitors during pregnancy "increased markedly" compared with previous years, they wrote in BMJ.
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