Intranasal Midazolam Administration


Uses


How should I take or use Intranasal Midazolam Administration?

Note: Ensure nose is not blocked prior to administration of midazolam

Step 1:

 

  • Remove blunt needle cover
  • (Do not dispose blunt needle cover)

  • Assemble the blunt needle and the syringe as shown in this picture

Step 4:

 

  • Place the assembled needle and syringe into the ampoule as shown
  • Withdraw the prescribed volume of solution
  • Hold the syringe upright with nozzle facing up against the light to check that the solution is clear
  • Expel trapped air if present. Withdraw midazolam again if volume falls below prescribed
  • Cap the blunt needle once the required volume has been withdrawn
  • Remove the capped needle

Step 2:

 

  • Gently swirl the Midazolam ampoule (15mg/3mL) until all the solution is at the bottom as shown in the picture on the right
  • The solution should be clear; do not use if cloudy.

Step 5:

                

  • Assemble the atomizer to the syringe as shown

Step 3:

 

  • Hold the bottom part of the ampoule between the thumb and first finger of one hand.
  • Ensure that the spot on the ampoule is facing away from you
  • If possible, cover the top of the ampoule with a tissue or towel before holding the top between the thumb and first finger of your other hand.
  • Snap the top of the ampoule off by pushing away from the side with the spot (in the direction of the arrow).

Step 6:

 

  • Lie the child on a flat surface
  • Place the assembled atomizer and the syringe firmly on the nostril
  • Press the plunger of the syringe quickly to administer about half of the volume as atomised spray into a nostril
  • Move the device over to the opposite nostril and administer the remaining medication into that nostril

 

Intranasal midazolam dosing chart

Volume of midazolam = dose volume + 0.1 ml (atomizer dead space).

Patient age in months

WeightDose* Volume (5mg/ml)
1 month to 5 months old6 kg1.2 mg0.3 ml
6 month old and older 6.1 to 8 kg 1.6 mg0.4 ml
8.1 to 10 kg2 mg0.5 ml
10.1 to 14 kg3 mg0.7 ml
14.1 to 20 kg4.2 mg0.9 ml
20.1 to 28 kg6 mg1.3 ml
28.1 to 35 kg8.4 mg1.8 ml
Teenager or adult 35.1 kg or more 10 mg2 ml

* Volume is based on the calculated dose plus 0.10 ml dead space in the device

For children 1 month to 5months old, intranasal midazolam is dosed at 0.2mg/kg/dose.

For children of 6 month old to adults, intranasal midazolam is dosed at 0.2 – 0.3mg/kg/dose. Max of 10mg/dose.


Handling


How should I store Intranasal Midazolam Administration?

  • Keep away from children
  • Keep in a cool, dry place, away from direct sunlight

For more information


What else should I know about Intranasal Midazolam Administration?

Maintenance of accessories:

  • To flush accessories (atomizer, blunt needle and syringe) with water after use
  • Dry them thoroughly
  • Store them together with the midazolam ampoules (15mg/3mL) in a cool dry place, away from sunlight

Note: Accessories are only available for purchase at outpatient pharmacy during office hours only


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