Oral: effect after 30-45 min
Rectal: effect after 10-20 min
Intravenous: effect after 3 min
Duration of effect after a single dose is 1-2 hours.
The following kinetic parameters have been observed after oromucosal administration [SmPC for Buccolam]:
| Dose (mg) | 2.5 | 5 | 7.5 | 10 |
|---|---|---|---|---|
| Age | 3-11 months | 1-4 years | 5-9 years | 10-18 years |
| Cmax (ng/ml) | 104 | 148 | 140 | 87 |
Cl: 30 ml/kg/min
t½: 204 min
After intravenous or rectal administration, the t½ in healthy children aged 3-10 years is 1-1.5 hours. In neonates is this 6-12 hours [SmPC for Dormicum]. In severely sick children (1-17 years), the following kinetic parameters were found for intravenously administered midazolam [De Wildt 2003]:
Cl: 5.0 ± 3.9 ml/kg/min
t½: 5.5 ± 3.5 hours
Vd: 1.7 ± 1.1 l/kg
After nasal administration, the following parameters were found in children aged 1.75-4 years (n=6) [Rey 1991]:
Cl/F: 1.44 l/kg/hour
t½: 2.22 hours
tmax: 0.19 hours
Cmax: 104 µg/l
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| Premedication before the induction of anaesthesia |
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| Procedural sedation |
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| Sedation on the IC ward |
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| Status epilepticus |
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| Palliative sedation |
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Adjustment in renal impairment as specified:
In mild intoxication sleepiness and confusion occur; in severe cases, ataxia, hypotonia, hypotension, respiratory depression and coma can also occur. These symptoms disappear over the course of a couple of days.
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The complete list of all undesirable drug reactions can be found in the national Summary of Product Characteristics (SmPC) – click here
Paradoxical reactions such as restlessness, anxiety, nervousness, agitation, irritability, excitement, hyperactivity, aggression, hostility, behavioral abnormalities, abnormal dreams, hallucinations, delusions, psychosis, involuntary movements (such as tonic-clonic movements, tremors). Convulsions in preterm and neonates. [SmPC]
Midazolam can cause hypotension in both preterm and term neonates and reduced cerebral blood flow in preterm infants [Kumar 2010].
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The complete list of all contra-indications can be found in the national Summary of Product Characteristics (SmPC) – click here
No information available on specific contra indications in children.
The complete list of all warnings and precautions can be found in the national Summary of Product Characteristics (SmPC) – click here
Administer under monitoring.
The antagonist flumazenil (Anexate) must be available: 0.01 mg/kg, repeat if necessary after 1 min.
Be aware of the possibility of respiratory depression, asthma, respiratory obstruction, combination with opiates.
For outpatient/day treatment use: only let the child go home when properly well awake.
Avoid rapid intravenous administration in children with an unstable cardiovascular status.
In neonates and pre-term born infants who have not been intubated, caution should be exercised in sedation due to an increased risk of apnoea. Do not use benzodiazepines in children for treating sleep disorders.
Midazolam nasal spray can be felt to be painful, so consider a lidocaine nasal spray beforehand. The nasal spray has a nasty taste; give a lollipop if necessary.
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The complete list of all interactions can be found in the national Summary of Product Characteristics (SmPC) – click here
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