Narcotics called opiates can also be given to relieve pain. There is some link between opiates and respiratory distress in newborns, but a delivery team in the hospital can take care of any issues. (It's why narcotics aren't recommended for home births.) They're not a great choice because they can make you - and even the baby - woozy, but their upside is that they generally help take the edge off the pain.
They're generally used if it's too late for an epidural; also, narcotics can be given with doctor prescription, while an epidural needs an anesthesiologist.
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