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What are the effects of alcohol and other drugs during pregnancy?


If you are thinking of getting pregnant or if you're already pregnant, here's some information about alcohol and drug use to keep in mind.

Alcohol

Women who drink during pregnancy can miscarry or their baby can have a low birth weight. Women who drink are also risk having a child with Fetal Alcohol Spectrum Disorder (FASD), which is a term used to describe a range of symptoms caused by drinking alcohol during pregnancy. Fetal Alcohol Syndrome (FAS) is one of several diagnoses within FASD.

A child with FAS will have:

  • certain characteristic facial features
  • a lower weight and height than normal
  • problems with the central nervous system such as:
    • intellectual disabilities
    • learning disabilities
    • behaviour disorders
    • developmental delays (for example, children with FAS may take longer to grow and learn certain things as they get older).

Other drug use

A woman who uses marijuana, cocaine or other drugs while she is pregnant may:

  • miscarry
  • give birth prematurely
  • have a low birth-weight baby.

If the mother uses cocaine, the newborn may have:

  • a smaller head
  • shorter body length
  • low birth weight.

If you're pregnant or considering becoming pregnant, you can get confidential advice on the use of alcohol and drugs during pregnancy by calling Motherisk at 1-877-327-4636.

Additional resources

Alcohol, Other Drugs and PregnancyAlberta Alcohol and Drug Abuse Commission

Effects Series: CannabisAlberta Alcohol and Drug Abuse Commission

Effects Series: CocaineAlberta Alcohol and Drug Abuse Commission

Fetal Alcohol Spectrum Disorder (FASD)Canadian Centre on Substance Abuse

References

Alcohol and Pregnancy – Preventing FASD (Fetal Alcohol Spectrum Disorder)Alberta Alcohol and Drug Abuse Commission, 2004.

Cannabis Control in Canada. Ottawa: Canadian Centre on Substance Abuse, 1998.

Drugs and Drug Abuse. Toronto: Centre for Addiction and Mental Health, 1998.

Fetal Alcohol Spectrum Disorder: Canadian Guidelines for Diagnosis. Canadian Medical Association journal, 172(5 suppl): S1-S21, 2005.


Last Updated: 2006-10-27
Created for the Canadian Health Network by the Canadian Centre on Substance Abuse.

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