Pediatric Patients
Most patients aged 3 years through 16 years and classified ASA-PS I or II require 2.5 to
3.5 mg/kg of DIPRIVAN Injectable Emulsion for induction when unpremedicated or when
lightly premedicated with oral benzodiazepines or intramuscular opioids. Within this dosage
range, younger pediatric patients may require higher induction doses than older pediatric
patients. As with other sedative-hypnotic agents, the amount of intravenous opioid and/or
benzodiazepine premedication will influence the response of the patient to an induction dose
of DIPRIVAN Injectable Emulsion. A lower dosage is recommended for pediatric patients
classified as ASA-PS III or IV. Attention should be paid to minimize pain on injection when
administering DIPRIVAN Injectable Emulsion to pediatric patients. Boluses of DIPRIVAN
Injectable Emulsion may be administered via small veins if pretreated with lidocaine or via
antecubital or larger veins (see PRECAUTIONS,_General'>PRECAUTIONS, General).
Neurosurgical Patients
Slower induction is recommended using boluses of 20 mg every 10 seconds. Slower boluses
or infusions of DIPRIVAN Injectable Emulsion for induction of anesthesia, titrated to clinical
responses, will generally result in reduced induction dosage requirements (1 to
2 mg/kg) (see PRECAUTIONS and DOSAGE AND ADMINISTRATION).
Cardiac Anesthesia
DIPRIVAN Injectable Emulsion has been well-studied in patients with coronary artery
disease, but experience in patients with hemodynamically significant valvular or congenital
heart disease is limited. As with other anesthetic and sedative-hypnotic agents, DIPRIVAN
35
Reference ID: 3520825
1
Injectable Emulsion in healthy patients causes a decrease in blood pressure that is secondary
2
to decreases in preload (ventricular filling volume at the end of the diastole) and afterload
3
(arterial resistance at the beginning of the systole). The magnitude of these changes is
4
proportional to the blood and effect site concentrations achieved. These concentrations
5
depend upon the dose and speed of the induction and maintenance infusion rates.
6
In addition, lower heart rates are observed during maintenance with DIPRIVAN
7
Injectable Emulsion, possibly due to reduction of the sympathetic activity and/or resetting of
8
the baroreceptor reflexes. Therefore, anticholinergic agents should be administered when
9
increases in vagal tone are anticipated.
10
As with other anesthetic agents, DIPRIVAN Injectable Emulsion reduces myocardial
11
oxygen consumption. Further studies are needed to confirm and delineate the extent of these
12
effects on the myocardium and the coronary vascular system.
13
Morphine premedication (0.15 mg/kg) with nitrous oxide 67% in oxygen has been
14
shown to decrease the necessary DIPRIVAN Injectable Emulsion maintenance infusion rates
15
and therapeutic blood concentrations when compared to non-narcotic (lorazepam)
16
premedication. The rate of DIPRIVAN Injectable Emulsion administration should be
17
determined based on the patient's premedication and adjusted according to clinical responses.
18
A rapid bolus induction should be avoided. A slow rate of approximately 20 mg every
19
10 seconds until induction onset (0.5 to 1.5 mg/kg) should be used. In order to assure
20
adequate anesthesia, when DIPRIVAN Injectable Emulsion is used as the primary agent,
21
maintenance infusion rates should not be less than 100 mcg/kg/min and should be
22
supplemented with analgesic levels of continuous opioid administration. When an opioid is
23
used as the primary agent, DIPRIVAN Injectable Emulsion maintenance rates should not be
36
Reference ID: 3520825
1
less than 50 mcg/kg/min, and care should be taken to ensure amnesia. Higher doses of
2
DIPRIVAN Injectable Emulsion will reduce the opioid requirements (see Table 4). When
3
DIPRIVAN Injectable Emulsion is used as the primary anesthetic, it should not be
4
administered with the high-dose opioid technique as this may increase the likelihood of
5
hypotension (see PRECAUTIONS, Cardiac Anesthesia).
6
Table 4. Cardiac Anesthesia Techniques
Primary Agent
Rate
Secondary Agent/Rate
(Following Induction with Primary Agent)
DIPRIVAN Injectable Emulsion
OPIOID
a
/0.05 to 0.075 mcg/kg/min (no bolus)
Preinduction
Anxiolysis
25 mcg/kg/min
Induction
0.5 to 1.5 mg/kg
over 60 sec
Maintenance
(Titrated to Clinical
Response)
100 to 150 mcg/kg/min
OPIOID
b
DIPRIVAN Injectable Emulsion/50 to 100 mcg/kg/min
(no bolus)
Induction
25 to 50 mcg/kg
Maintenance
0.2 to 0.3 mcg/kg/min
7
a
OPIOID is defined in terms of fentanyl equivalents, i.e.,
8
1 mcg of fentanyl = 5 mcg of alfentanil (for bolus)
9
= 10 mcg of alfentanil (for maintenance)
10
or
11
= 0.1 mcg of sufentanil
12
b
Care should be taken to ensure amnesia.
13
14
Maintenance of General Anesthesia
15
DIPRIVAN Injectable Emulsion has been used with a variety of agents commonly used in
16
anesthesia such as atropine, scopolamine, glycopyrrolate, diazepam, depolarizing and
17
nondepolarizing muscle relaxants, and opioid analgesics, as well as with inhalational and
18
regional anesthetic agents.
37
Reference ID: 3520825
1
In the elderly, debilitated, or ASA-PS III or IV patients, rapid bolus doses should not
2
be used, as this will increase cardiorespiratory effects including hypotension, apnea, airway
3
obstruction, and oxygen desaturation.
4
Adult Patients
5
In adults, anesthesia can be maintained by administering DIPRIVAN Injectable Emulsion by
6
infusion or intermittent IV bolus injection. The patient's clinical response will determine the
7
infusion rate or the amount and frequency of incremental injections.
8
Continuous Infusion
9
DIPRIVAN Injectable Emulsion 100 to 200 mcg/kg/min administered in a variable rate
10
infusion with 60% to 70% nitrous oxide and oxygen provides anesthesia for patients
11
undergoing general surgery. Maintenance by infusion of DIPRIVAN Injectable Emulsion
12
should immediately follow the induction dose in order to provide satisfactory or continuous
13
anesthesia during the induction phase. During this initial period following the induction dose,
14
higher rates of infusion are generally required (150 to 200 mcg/kg/min) for the first
15
10 to 15 minutes. Infusion rates should subsequently be decreased 30% to 50% during the
16
first half-hour of maintenance. Generally, rates of 50 to 100 mcg/kg/min in adults should be
17
achieved during maintenance in order to optimize recovery times.
18
Other drugs that cause CNS depression (hypnotics/sedatives, inhalational anesthetics,
19
and opioids) can increase the CNS depression induced by propofol.
20
Intermittent Bolus
21
Increments of DIPRIVAN Injectable Emulsion 25 mg (2.5 mL) to 50 mg (5 mL) may be
22
administered with nitrous oxide in adult patients undergoing general surgery. The
38
Reference ID: 3520825
1
incremental boluses should be administered when changes in vital signs indicate a response to
2
surgical stimulation or light anesthesia.
3
Pediatric Patients
4
DIPRIVAN Injectable Emulsion administered as a variable rate infusion supplemented with
5
nitrous oxide 60% to 70% provides satisfactory anesthesia for most children 2 months of age
6
or older, ASA-PS I or II, undergoing general anesthesia.
7
In general, for the pediatric population, maintenance by infusion of DIPRIVAN
8
Injectable Emulsion at a rate of 200 to 300 mcg/kg/min should immediately follow the
9
induction dose. Following the first half-hour of maintenance, infusion rates of 125 to
10
150 mcg/kg/min are typically needed. DIPRIVAN Injectable Emulsion should be titrated to
11
achieve the desired clinical effect. Younger pediatric patients may require higher
12
maintenance infusion rates than older pediatric patients. (See Table 2 Clinical Trials.)
13
Monitored Anesthesia Care (MAC) Sedation
14
Adult Patients
15
When DIPRIVAN Injectable Emulsion is administered for MAC sedation, rates of
16
administration should be individualized and titrated to clinical response. In most patients, the
17
rates of DIPRIVAN Injectable Emulsion administration will be in the range of 25 to
18
75 mcg/kg/min.
19
During initiation of MAC sedation, slow infusion or slow injection techniques are
20
preferable over rapid bolus administration. During maintenance of MAC sedation, a variable
21
rate infusion is preferable over intermittent bolus dose administration. In the elderly,
22
debilitated, or ASA-PS III or IV patients, rapid (single or repeated) bolus dose administration
23
should not be used for MAC sedation (see WARNINGS). A rapid bolus injection can result
39
Reference ID: 3520825
1
in undesirable cardiorespiratory depression including hypotension, apnea, airway obstruction,
2
and oxygen desaturation.
3
Initiation of MAC Sedation
4
For initiation of MAC sedation, either an infusion or a slow injection method may be utilized
5
while closely monitoring cardiorespiratory function. With the infusion method, sedation may
6
be initiated by infusing DIPRIVAN Injectable Emulsion at 100 to 150 mcg/kg/min (6 to
7
9 mg/kg/h) for a period of 3 to 5 minutes and titrating to the desired clinical effect while
8
closely monitoring respiratory function. With the slow injection method for initiation,
9
patients will require approximately 0.5 mg/kg administered over 3 to 5 minutes and titrated to
10
clinical responses. When DIPRIVAN Injectable Emulsion is administered slowly over
11
3 to 5 minutes, most patients will be adequately sedated, and the peak drug effect can be
12
achieved while minimizing undesirable cardiorespiratory effects occurring at high plasma
13
levels.
14
In the elderly, debilitated, or ASA-PS III or IV patients, rapid (single or repeated)
15
bolus dose administration should not be used for MAC sedation (see WARNINGS). The rate
16
of administration should be over 3 to 5 minutes and the dosage of DIPRIVAN Injectable
17
Emulsion should be reduced to approximately 80% of the usual adult dosage in these patients
18
according to their condition, responses, and changes in vital signs (see DOSAGE AND
19
ADMINISTRATION).
20
Maintenance of MAC Sedation
21
For maintenance of sedation, a variable rate infusion method is preferable over an intermittent
22
bolus dose method. With the variable rate infusion method, patients will generally require
23
maintenance rates of 25 to 75 mcg/kg/min (1.5 to 4.5 mg/kg/h) during the first 10 to
40
Reference ID: 3520825
1
15 minutes of sedation maintenance. Infusion rates should subsequently be decreased over
2
time to 25 to 50 mcg/kg/min and adjusted to clinical responses. In titrating to clinical effect,
3
allow approximately 2 minutes for onset of peak drug effect.
4
Infusion rates should always be titrated downward in the absence of clinical signs of
5
light sedation until mild responses to stimulation are obtained in order to avoid sedative
6
administration of DIPRIVAN Injectable Emulsion at rates higher than are clinically
7
necessary.
8
If the intermittent bolus dose method is used, increments of DIPRIVAN Injectable
9
Emulsion 10 mg (1 mL) or 20 mg (2 mL) can be administered and titrated to desired clinical
10
effect. With the intermittent bolus method of sedation maintenance, there is increased
11
potential for respiratory depression, transient increases in sedation depth, and prolongation of
12
recovery.
13
In the elderly, debilitated, or ASA-PS III or IV patients, rapid (single or repeated)
14
bolus dose administration should not be used for MAC sedation (see WARNINGS). The rate
15
of administration and the dosage of DIPRIVAN Injectable Emulsion should be reduced to
16
approximately 80% of the usual adult dosage in these patients according to their condition,
17
responses, and changes in vital signs (see DOSAGE AND ADMINISTRATION).
18
DIPRIVAN Injectable Emulsion can be administered as the sole agent for
19
maintenance of MAC sedation during surgical/diagnostic procedures. When DIPRIVAN
20
Injectable Emulsion sedation is supplemented with opioid and/or benzodiazepine medications,
21
these agents increase the sedative and respiratory effects of DIPRIVAN Injectable Emulsion
22
and may also result in a slower recovery profile (see PRECAUTIONS,_Drug_Interactions'>PRECAUTIONS, Drug Interactions).
41
Reference ID: 3520825
1
ICU Sedation
2
(See WARNINGS and DOSAGE AND ADMINISTRATION, Handling Procedures.)
3
Abrupt discontinuation of DIPRIVAN Injectable Emulsion prior to weaning or for daily
4
evaluation of sedation levels should be avoided. This may result in rapid awakening with
5
associated anxiety, agitation, and resistance to mechanical ventilation. Infusions of
6
DIPRIVAN Injectable Emulsion should be adjusted to assure a minimal level of sedation is
7
maintained throughout the weaning process and when assessing the level of sedation (see
8
PRECAUTIONS).
9
Adult Patients
10
For intubated, mechanically ventilated adult patients, Intensive Care Unit (ICU) sedation
11
should be initiated slowly with a continuous infusion in order to titrate to desired clinical
12
effect and minimize hypotension (see DOSAGE AND ADMINISTRATION).
13
Most adult ICU patients recovering from the effects of general anesthesia or deep
14
sedation will require maintenance rates of 5 to 50 mcg/kg/min (0.3 to 3 mg/kg/h)
15
individualized and titrated to clinical response (see DOSAGE AND ADMINISTRATION).
16
With medical ICU patients or patients who have recovered from the effects of general
17
anesthesia or deep sedation, the rate of administration of 50 mcg/kg/min or higher may be
18
required to achieve adequate sedation. These higher rates of administration may increase the
19
likelihood of patients developing hypotension. Administration should not exceed
20
4 mg/kg/hour unless the benefits outweigh the risks (see WARNINGS).
21
Dosage and rate of administration should be individualized and titrated to the desired
22
effect, according to clinically relevant factors including the patient’s underlying medical
23
problems, preinduction and concomitant medications, age, ASA-PS classification, and level
42
Reference ID: 3520825
1
of debilitation of the patient. The elderly, debilitated, and ASA-PS III or IV patients may
2
have exaggerated hemodynamic and respiratory responses to rapid bolus doses (see
3
WARNINGS).
4
DIPRIVAN Injectable Emulsion should be individualized according to the patient's
5
condition and response, blood lipid profile, and vital signs (see PRECAUTIONS, Intensive
6
Care Unit Sedation). For intubated, mechanically ventilated adult patients, Intensive Care
7
Unit (ICU) sedation should be initiated slowly with a continuous infusion in order to titrate to
8
desired clinical effect and minimize hypotension. When indicated, initiation of sedation
9
should begin at 5 mcg/kg/min (0.3 mg/kg/h). The infusion rate should be increased by
10
increments of 5 to 10 mcg/kg/min (0.3 to 0.6 mg/kg/h) until the desired level of sedation is
11
achieved. A minimum period of 5 minutes between adjustments should be allowed for onset
12
of peak drug effect. Most adult patients require maintenance rates of 5 to 50 mcg/kg/min (0.3
13
to 3 mg/kg/h) or higher. Administration should not exceed 4 mg/kg/hour unless the benefits
14
outweigh the risks (see WARNINGS). Dosages of DIPRIVAN Injectable Emulsion should
15
be reduced in patients who have received large dosages of narcotics. The DIPRIVAN
16
Injectable Emulsion dosage requirement may also be reduced by adequate management of
17
pain with analgesic agents. As with other sedative medications, there is interpatient
18
variability in dosage requirements, and these requirements may change with time (see
19
SUMMARY OF DOSAGE GUIDELINES). Evaluation of level of sedation and assessment
20
of CNS function should be carried out daily throughout maintenance to determine the
21
minimum dose of DIPRIVAN required for sedation (see Clinical Trials, Intensive Care Unit
22
(ICU) Sedation). Bolus administration of 10 or 20 mg should only be used to rapidly
23
increase depth of sedation in patients where hypotension is not likely to occur. Patients with
43
Reference ID: 3520825
1
compromised myocardial function, intravascular volume depletion, or abnormally low
2
vascular tone (e.g., sepsis) may be more susceptible to hypotension (see PRECAUTIONS).
3
SUMMARY OF DOSAGE GUIDELINES:
4
Dosages and rates of administration in the following table should be individualized and
5
titrated to clinical response. Safety and dosing requirements for induction of anesthesia in
6
pediatric patients have only been established for children 3 years of age or older. Safety and
7
dosing requirements for the maintenance of anesthesia have only been established for children
8
2 months of age and older.
9
For complete dosage information, see DOSAGE AND ADMINISTRATION.
44
Reference ID: 3520825
INDICATION DOSAGE
AND
ADMINISTRATION
Induction of General Anesthesia:
Healthy Adults Less Than 55 Years of Age:
40 mg every 10 seconds until induction onset (2 to 2.5 mg/kg).
Elderly, Debilitated, or ASA-PS III or IV Patients:
20 mg every 10 seconds until induction onset (1 to 1.5 mg/kg).
Cardiac Anesthesia:
20 mg every 10 seconds until induction onset (0.5 to 1.5 mg/kg).
Neurosurgical Patients:
20 mg every 10 seconds until induction onset (1 to 2 mg/kg).
Pediatric Patients - healthy, from 3 years to 16 years of age:
2.5 to 3.5 mg/kg administered over 20 to 30 seconds.
(see PRECAUTIONS, Pediatric Use and CLINICAL
PHARMACOLOGY, Pediatrics)
Maintenance of General Anesthesia:
Infusion
Healthy Adults Less Than 55 Years of Age:
100 to 200 mcg/kg/min (6 to 12 mg/kg/h).
Elderly, Debilitated, ASA-PS III or IV Patients:
50 to 100 mcg/kg/min (3 to 6 mg/kg/h).
Cardiac Anesthesia: Most patients require:
Primary DIPRIVAN Injectable Emulsion with Secondary Opioid –
100 to 150 mcg/kg/min.
Low-Dose DIPRIVAN Injectable Emulsion with Primary Opioid –
50 to 100 mcg/kg/min.
(see DOSAGE AND ADMINISTRATION, Table 4)
Neurosurgical Patients:
100 to 200 mcg/kg/min (6 to 12 mg/kg/h).
Pediatric Patients - healthy, from 2 months of age to 16 years of age:
125 to 300 mcg/kg/min (7.5 to 18 mg/kg/h).
Following the first half hour of maintenance, if clinical signs of light
anesthesia are not present, the infusion rate should be decreased.
(see PRECAUTIONS, Pediatric Use and CLINICAL
PHARMACOLOGY, Pediatrics)
Dostları ilə paylaş: |