NEW YORK (Reuters Health) - Women who receive fentanyl analgesia during labor may be less likely to breastfeed their infants, according to UK investigators. Based on their findings, they propose that women given this type of analgesia during labor should also receive support to successfully establish breastfeeding in the hospital.There is currently some evidence that fentanyl and similar analgesic drugs have an impact on infant feeding, Dr. Sue Jordan from the University of Wales in Swansea and colleagues note in their report published in BJOG: an International Journal of Obstetrics and Gynecology.