Table 2 Routes of administration and dose of naloxone in 2215 suspected cases of opioid overdose and subsequent administration of naloxone after the initial dose
From: Prehospital naloxone administration – what influences choice of dose and route of administration?
Initial naloxone treatment | % (n) | Subsequent naloxone administration, % (n) |
|---|---|---|
Total | 100 (2215) | 15.0 (332) |
IM only | 91.9 (2035) | 15.6 (318) |
0.4 mg | 39.9 (811) | 16.5 (134) |
0.8 mg | 56.5 (1150) | 15.0 (172) |
Other doses < 0.8 mg | 3.5 (72) | |
Other doses > 0.8 mg | 0.1 (2) | |
IV only | 1.9 (41) | 9.8 (4) |
0.4 mg | 75.6 (31) | |
0.8 mg | 17.1 (7) | |
Other doses < 0.8 mg | 7.3 (3) | |
IM and IV | 3.8 (84) | 2.4 (2) |
0.4 IM + 0.4 IV | 17.9 (15) | |
0.8 IM + 0.4 IV | 65.5 (55) | |
0.8 IM + 0.8 IV | 10.7 (9) | |
Other doses > 0.8 mg | 6.0 (5) | |
Other | 2.5 (55) | 14.6 (8) |