Intranasal Fentanyl in Treatment of Labour Pain

When contraction pain was ≥ 5/10 (numerical rating scale 0= no pain, 10= worst pain), the parturient was given a intranasal fentanyl 50 µg dose. After 15 minutes, if contraction pain was still ≥ 5/10, a second 50 µg intranasal dose was administered. Fentanyl was administered every 15 minute until contraction pain decreased to less than 5/10 or until the maximum fentanyl dose of 250 µg was administered.