Source & verification: “L04 Med Ketamine Dose Chart,” Texas 2025, revised 2025-12-02. All values below match the source document exactly: pulled directly from its own text, not retyped from an image, and cross-checked against the stated 500 mg/10 ml (50 mg/ml) concentration for every dose tier. Cells marked
N/A †are genuinely absent from the source itself for that weight/tier (see the note below the tables); no value is inferred for them. Confirm the concentration you actually have on hand matches what’s listed before drawing up a dose, and verify these dose tiers against your agency’s own medical direction before use. Indications and dosing for ketamine vary more by local protocol than most other agents on this chart.
All volumes below assume a 500 mg/10 ml (50 mg/ml) concentration for every dose tier and route.
Pediatric weights (4–33 kg)
| Weight (lb) | Weight (kg) | 0.1 mg/kg IN/IV | 0.3 mg/kg IN/IV | 1 mg/kg IN/IV | 2 mg/kg IN/IV | 2 mg/kg IM | 4 mg/kg IM |
|---|---|---|---|---|---|---|---|
| 8.8 | 4 | N/A † | N/A † | 4 mg / 0.08 ml | 8 mg / 0.16 ml | 8 mg / 0.16 ml | 16 mg / 0.32 ml |
| 14.3 | 6.5 | N/A † | N/A † | 6.5 mg / 0.13 ml | 13 mg / 0.26 ml | 13 mg / 0.26 ml | 26 mg / 0.52 ml |
| 18.7 | 8.5 | N/A † | N/A † | 8.5 mg / 0.17 ml | 17 mg / 0.34 ml | 17 mg / 0.34 ml | 34 mg / 0.68 ml |
| 23.1 | 10.5 | N/A † | N/A † | 10.5 mg / 0.21 ml | 21 mg / 0.42 ml | 21 mg / 0.42 ml | 42 mg / 0.84 ml |
| 28.6 | 13 | N/A † | N/A † | 13 mg / 0.26 ml | 26 mg / 0.52 ml | 26 mg / 0.52 ml | 52 mg / 1.04 ml |
| 36.3 | 16.5 | N/A † | N/A † | 16.5 mg / 0.33 ml | 33 mg / 0.66 ml | 33 mg / 0.66 ml | 66 mg / 1.32 ml |
| 45.1 | 20.5 | N/A † | N/A † | 20.5 mg / 0.41 ml | 41 mg / 0.82 ml | 41 mg / 0.82 ml | 82 mg / 1.64 ml |
| 57.2 | 26 | N/A † | N/A † | 26 mg / 0.52 ml | 52 mg / 1.04 ml | 52 mg / 1.04 ml | 104 mg / 2.08 ml |
| 72.6 | 33 | N/A † | N/A † | 33 mg / 0.66 ml | 66 mg / 1.32 ml | 66 mg / 1.32 ml | 132 mg / 2.64 ml |
Adult weights (40–200 kg)
| Weight (lb) | Weight (kg) | 0.1 mg/kg IN/IV | 0.3 mg/kg IN/IV | 1 mg/kg IN/IV | 2 mg/kg IN/IV | 2 mg/kg IM | 4 mg/kg IM |
|---|---|---|---|---|---|---|---|
| 88 | 40 | 4 mg / 0.08 ml | N/A † | 40 mg / 0.80 ml | 80 mg / 1.60 ml | 80 mg / 1.60 ml | 160 mg / 3.20 ml |
| 99 | 45 | 4.5 mg / 0.09 ml | N/A † | 45 mg / 0.90 ml | 90 mg / 1.80 ml | 90 mg / 1.80 ml | 180 mg / 3.60 ml |
| 110 | 50 | 5 mg / 0.10 ml | 15 mg / 0.30 ml | 50 mg / 1.00 ml | 100 mg / 2.00 ml | 100 mg / 2.00 ml | 200 mg / 4.00 ml |
| 121 | 55 | 5.5 mg / 0.11 ml | 16.5 mg / 0.33 ml | 55 mg / 1.10 ml | 110 mg / 2.20 ml | 110 mg / 2.20 ml | 220 mg / 4.40 ml |
| 132 | 60 | 6 mg / 0.12 ml | 18 mg / 0.36 ml | 60 mg / 1.20 ml | 120 mg / 2.40 ml | 120 mg / 2.40 ml | 240 mg / 4.80 ml |
| 143 | 65 | 6.5 mg / 0.13 ml | 19.5 mg / 0.39 ml | 65 mg / 1.30 ml | 130 mg / 2.60 ml | 130 mg / 2.60 ml | 260 mg / 5.20 ml |
| 154 | 70 | 7 mg / 0.14 ml | 21 mg / 0.42 ml | 70 mg / 1.40 ml | 140 mg / 2.80 ml | 140 mg / 2.80 ml | 280 mg / 5.60 ml |
| 165 | 75 | 7.5 mg / 0.15 ml | 22.5 mg / 0.45 ml | 75 mg / 1.50 ml | 150 mg / 3.00 ml | 150 mg / 3.00 ml | 300 mg / 6.00 ml |
| 176 | 80 | 8 mg / 0.16 ml | 24 mg / 0.48 ml | 80 mg / 1.60 ml | 160 mg / 3.20 ml | 160 mg / 3.20 ml | 320 mg / 6.40 ml |
| 187 | 85 | 8.5 mg / 0.17 ml | 25.5 mg / 0.51 ml | 85 mg / 1.70 ml | 170 mg / 3.40 ml | 170 mg / 3.40 ml | 340 mg / 6.80 ml |
| 198 | 90 | 9 mg / 0.18 ml | 27 mg / 0.54 ml | 90 mg / 1.80 ml | 180 mg / 3.60 ml | 180 mg / 3.60 ml | 360 mg / 7.20 ml |
| 209 | 95 | 9.5 mg / 0.19 ml | 28.5 mg / 0.57 ml | 95 mg / 1.90 ml | 190 mg / 3.80 ml | 190 mg / 3.80 ml | 380 mg / 7.60 ml |
| 220 | 100 | 10 mg / 0.20 ml | 30 mg / 0.60 ml | 100 mg / 2.00 ml | 200 mg / 4.00 ml | 200 mg / 4.00 ml | 400 mg / 8.00 ml |
| 242 | 110 | 11 mg / 0.22 ml | 33 mg / 0.66 ml | 110 mg / 2.20 ml | 220 mg / 4.40 ml | 220 mg / 4.40 ml | 440 mg / 8.80 ml |
| 264 | 120 | 12 mg / 0.24 ml | 36 mg / 0.72 ml | 120 mg / 2.40 ml | 240 mg / 4.80 ml | 240 mg / 4.80 ml | 480 mg / 9.60 ml |
| 286 | 130 | 13 mg / 0.26 ml | 39 mg / 0.78 ml | 130 mg / 2.60 ml | 260 mg / 5.20 ml | 260 mg / 5.20 ml | 520 mg / 10.40 ml |
| 308 | 140 | 14 mg / 0.28 ml | 42 mg / 0.84 ml | 140 mg / 2.80 ml | 280 mg / 5.60 ml | 280 mg / 5.60 ml | 560 mg / 11.20 ml |
| 330 | 150 | 15 mg / 0.30 ml | 45 mg / 0.90 ml | 150 mg / 3.00 ml | 300 mg / 6.00 ml | 300 mg / 6.00 ml | 600 mg / 12.00 ml |
| 352 | 160 | 16 mg / 0.32 ml | 48 mg / 0.96 ml | 160 mg / 3.20 ml | 320 mg / 6.40 ml | 320 mg / 6.40 ml | 640 mg / 12.80 ml |
| 374 | 170 | 17 mg / 0.34 ml | 51 mg / 1.02 ml | 170 mg / 3.40 ml | 340 mg / 6.80 ml | 340 mg / 6.80 ml | 680 mg / 13.60 ml |
| 396 | 180 | 18 mg / 0.36 ml | 54 mg / 1.08 ml | 180 mg / 3.60 ml | 360 mg / 7.20 ml | 360 mg / 7.20 ml | 720 mg / 14.40 ml |
| 418 | 190 | 19 mg / 0.38 ml | 57 mg / 1.14 ml | 190 mg / 3.80 ml | 380 mg / 7.60 ml | 380 mg / 7.60 ml | 760 mg / 15.20 ml |
| 440 | 200 | 20 mg / 0.40 ml | 60 mg / 1.20 ml | 200 mg / 4.00 ml | 400 mg / 8.00 ml | 400 mg / 8.00 ml | 800 mg / 16.00 ml |
† The 0.1 mg/kg tier is blank in the pediatric table for every weight shown (4–33 kg), and the 0.3 mg/kg tier is blank there too, plus at 40 kg and 45 kg in the adult table. These are genuinely absent from the source document itself, not withheld by this site; no value is inferred for them. If you need one of these tiers at one of these weights, confirm with medical direction rather than extrapolating from this chart.