Source & verification: “L03 Med Fentanyl Dosage Chart,” Louisiana 2023. Every value below matches the source document exactly. Confirm the concentration you actually have on hand matches what’s listed before drawing up a dose, and verify this dosing convention against your agency’s own medical direction before use.
Dose: 1 mcg/kg IV/IM/IN, may repeat every 5 minutes. Maximum 3 mcg/kg.
Preparation (IV only): Dilute Fentanyl 100 mcg/2 ml with 8 ml NS to yield a 10 mcg/ml concentration. IN and IM doses are drawn from the undiluted 100 mcg/2 ml (50 mcg/ml) vial.
| Weight (lb) | Weight (kg) | IN volume * | IM volume ** | IV volume (diluted) | Dose |
|---|---|---|---|---|---|
| 88 | 40 | 0.8 ml | 0.8 ml | 4 ml | 40 mcg |
| 99 | 45 | 0.9 ml | 0.9 ml | 4.5 ml | 45 mcg |
| 110 | 50 | 1 ml | 1 ml | 5 ml | 50 mcg |
| 121 | 55 | 1.1 ml | 1.1 ml | 5.5 ml | 55 mcg |
| 132 | 60 | 1.2 ml | 1.2 ml | 6 ml | 60 mcg |
| 143 | 65 | 1.3 ml | 1.3 ml | 6.5 ml | 65 mcg |
| 154 | 70 | 1.4 ml | 1.4 ml | 7 ml | 70 mcg |
| 165 | 75 | 1.5 ml | 1.5 ml | 7.5 ml | 75 mcg |
| 176 | 80 | 1.6 ml | 1.6 ml | 8 ml | 80 mcg |
| 187 | 85 | 1.7 ml | 1.7 ml | 8.5 ml | 85 mcg |
| 198 | 90 | 1.8 ml | 1.8 ml | 9 ml | 90 mcg |
| 209 | 95 | 1.9 ml | 1.9 ml | 9.5 ml | 95 mcg |
| 220 | 100 | 2 ml | 2 ml | 10 ml | 100 mcg |
| 231 | 105 | N/A † | 2.1 ml | 10.5 ml | 105 mcg |
| 242 | 110 | N/A † | 2.2 ml | 11 ml | 110 mcg |
| 253 | 115 | N/A † | 2.3 ml | 11.5 ml | 115 mcg |
| 264 | 120 | N/A † | 2.4 ml | 12 ml | 120 mcg |
| 275 | 125 | N/A † | 2.5 ml | 12.5 ml | 125 mcg |
| 286 | 130 | N/A † | 2.6 ml | 13 ml | 130 mcg |
| 297 | 135 | N/A † | 2.7 ml | 13.5 ml | 135 mcg |
| 308 | 140 | N/A † | 2.8 ml | 14 ml | 140 mcg |
| 319 | 145 | N/A † | 2.9 ml | 14.5 ml | 145 mcg |
| 330 | 150 | N/A † | 3 ml | 15 ml | 150 mcg |
| 352 | 160 | N/A † | 3.2 ml | 16 ml | 160 mcg |
| 374 | 170 | N/A † | 3.4 ml | 17 ml | 170 mcg |
| 396 | 180 | N/A † | 3.6 ml | 18 ml | 180 mcg |
| 418 | 190 | N/A † | 3.8 ml | 19 ml | 190 mcg |
| 440 | 200 | N/A † | 4 ml | 20 ml | 200 mcg |
* IN administration volume should not exceed 1 ml per nare per dose (2 ml total). Above 100 kg, the required volume exceeds that limit. Use IM or IV instead. †
** IM administration volume should not exceed 2.5 ml in the arm, or 5 ml in the thigh or buttock; split the dose across sites if it exceeds that at a single site.