Dexmedetomidine (Precedex)
Standard dilution: Precedex 200mcg (2ml) diluted in 48ml normal saline
Loading dose: _____ mcg/kg over 20 minutes (normal renal function: 1mcg/kg)
*** A LOADING DOSE IS NOT REQUIRED FOR ALL PATIENTS ***
Loading infusion
Patient weight (kg) 50 60 70 80 90 100 110 120 130 140 150
Total dose delivered 50 60 70 80 90 100 110 120 130 140 150
Loading infusion rate 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5
Note: Loading dose may cause transient hypertension
Maintenance dose: _____ mcg/kg/hr (usual range: 0.2-0.7mcg/kg/hr). Titrate for effect in
increments of 0.1mcg/kg/hr every 15 minutes
Keep HR > _____  SBP > _____  MAP > _____
Maintenance infusion (4mcg/ml final concentration)
Patient weight (kg) 50 60 70 80 90 100 110 120 130 140 150
0.2mcg/kg/hr 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5
0.3mcg/kg/hr 3.8 4.5 5.3 6.0 6.8 7.5 8.3 9.0 9.8 10.5 11.3
0.4mcg/kg/hr 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0
0.5mcg/kg/hr 6.3 7.5 8.8 10.0 11.3 12.5 13.8 15.0 16.3 17.5 18.8
0.6mcg/kg/hr 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.0 19.5 21.0 22.5
0.7mcg/kg/hr 8.8 10.5 12.3 14.0 15.8 17.5 19.3 21.0 22.8 24.5 26.3
Titrate to Ramsay Scale score of _____
Ramsay Sedation Scale
Score Observation  
1 Anxious, agitated, or restless  
2 Cooperative, oriented, and tranquil  
3 Responsive to commands  
4 Asleep, but with brisk response to light glabellar tap or loud auditory stimulus  
5 Asleep, sluggish response to glabellar tap or auditory stimulus  
6 Asleep, no response  
Notify MD if:
SBP < 90, CVP < 14: place patient in Trendelenburg and administer ___________________
Persistent hypotension: reduce Precedex infusion by 50%
SBP and MAP do not return to parameters specified in 10 minutes: discontinue Precedex
HR < 45 or if patient develops 2nd or 3rd degree heart block: discontinue Precedex
For HR < 45, administer atropine 0.2mg IV
Patient may remain on Precedex before, during, and after extubation
Maximum recommended infusion time is 24 hours
Dosage reductions may be necessary in patients with renal/hepatic dysfunction and elderly
Precedex augments analgesic effects of opioids.  Reduced dose is recommended for
supplemental narcotic of benzodiazepine administration
Precedex is compatibile with LR, D5W, NS, 20% mannitol, thiopental, etomidate, vecuronium,
pancuronium, succinylcholine, atracurium, glycopyrrolate, phenylephrine, atropine,
midazolam, morphine, and fentanyl
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