National sponsor of the Motherisk Program
Our Helplines
1-877-327-4636 Alcohol and Substance
1-800-436-8477 Morning Sickness
1-888-246-5840 HIV and HIV Treatment
1-877-439-2744 Motherisk Helpline
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Pregnancy & Breastfeeding Resources
Current Studies at Motherisk
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Study seeks women between 4 and 12 weeks in their pregnancy with morning sickness (NVP)
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Pregnancy in Women with Multiple Sclerosis
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Environmental Exposures and Children's Health
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Alcohol Use during Pregnancy
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Control of Hypertension in Pregnancy Study
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Folic Acid Before and During Pregnancy
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Lamisil in Pregnancy
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Meridia in Pregnancy
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Autoimmune Diseases in Pregnancy Project
Calcium Channel Blockers
Fetal safety of calcium channel blockers
Fatoumah Alabdulrazzaq, MD and Gideon Koren, MD, FRCPC, FACMTJuly 2012
QUESTION
Many of my pregnant or lactating patients are taking calcium channel blockers (CCBs) for hypertension. How safe is maternal use of CCBs for fetuses and nursing infants?
ANSWER
Generally, CCBs have not been shown to increase teratogenic risk. Information regarding the safety of CCBs during lactation is limited, although they are not likely to pose a risk to the nursing infant.
QUESTION
Bon nombre de mes patientes enceintes ou qui allaitent prennent des inhibiteurs calciques (IC) pour l'hypertension. Dans quelle mesure l'utilisation maternelle des IC est-elle sécuritaire pour le fœtus et les nourrissons allaités?
RÉPONSE
En règle générale, il n'a pas été démontré que les IC présentaient un risque tératogène. Les renseignements concernant l'innocuité des IC durant l'allaitement sont limités, mais il est improbable qu'ils posent un risque pour le nourrisson allaité.
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