Opioids are highly addictive and may lead to big adverse effects such as life-threatening respiratory challenges.  You can find some proof of babies staying born with neural tube defects (a problem with the spine as well as nerves coming in the spine) if codeine is used early in pregnancy and https://sergioslyis.thelateblog.com/36637986/an-unbiased-view-of-zolpidem-tartrate-10mg