Rocuronium (rocuronium bromide)
Last reviewed · Source: First Databank (FDB) drug data
Overview
Rocuronium bromide is an aminosteroid nondepolarizing neuromuscular blocking agent.
Rocuronium bromide is a nondepolarizing neuromuscular blocking agent. Rocuronium produces skeletal muscle relaxation by causing a decreased response to acetylcholine (ACh) at the myoneural (neuromuscular) junction of skeletal muscle. The drug exhibits a high affinity for ACh receptor sites and competitively blocks access of ACh to the motor end-plate of the myoneural junction, and may affect ACh release.
Rocuronium has a rapid onset and intermediate duration of action. The onset of action is slower than that of succinylcholine but more rapid than that of most other currently available nondepolarizing agents.
Following IV administration of rocuronium 0.45 or 0.6 mg/kg in adults undergoing opioid/nitrous oxide/oxygen anesthesia, neuromuscular blockade is clinically sufficient in a median time of 1.3 (range: 0.8-6.2) or 1 (range: 0.4-6) minute, respectively, and maximal in 3 (range: 1.3-8.2) or 1.8 (range: 0.6-13) minutes, respectively. Clinically sufficient neuromuscular blockade persists for about 22 (range: 12-31) or 31 (range: 15-85) minutes, respectively. Higher doses of 0.9 or 1.2 mg/kg produce clinically sufficient neuromuscular blockade in about 1.1 (range: 0.3-3.8) or 0.7 (range: 0.4-1.7) minutes, respectively, and maximal blockade in 1.4 (range: 0.8-6.2) or 1 (range: 0.6-4.7) minutes, respectively.
Clinically sufficient neuromuscular blockade persists for about 58 (range: 27-111) or 67 (range: 38-160) minutes for these doses, respectively. Following maintenance doses of 0.1, 0.15, or 0.2 mg/kg in adults receiving opioid/nitrous oxide/oxygen anesthesia, clinically sufficient neuromuscular blockade persists for about 12 (range: 2-31), 17 (range: 6-50), or 24 (range: 7-69) minutes, respectively. The median time necessary for 25-75% recovery from neuromuscular blockade in adults is about 13 minutes.
Maximum neuromuscular blockade generally occurs within 1 minute in pediatric patients. In infants 3 months to 1 year of age undergoing halothane anesthesia, the duration of clinically sufficient neuromuscular blockade with rocuronium 0.6 mg/kg was 41 (range: 24-68) minutes. In pediatric patients 1-12 years of age undergoing halothane anesthesia, the duration of clinically sufficient neuromuscular blockade with rocuronium 0.6 mg/kg was 26 (range: 17-39) minutes.
Following maintenance doses of 0.075-0.125 mg/kg in pediatric patients, clinically sufficient neuromuscular blockade persists for 7-10 minutes.
Rocuronium is approximately 30% protein-bound. Rocuronium is metabolized to a less active metabolite, 17-desacetyl-rocuronium, that is rarely detected in the plasma and urine and is eliminated principally by the liver. The terminal half-life of rocuronium is 1.4-1.5 hours in adults undergoing opioid/nitrous oxide/oxygen anesthesia, 2.4 hours in adults undergoing isoflurane anesthesia, 0.8-1.3 hours in pediatric patients (3 months to <8 years of age) undergoing halothane anesthesia, and 0.7-1.1 hours in pediatric patients (birth to <=17 years of age) receiving induction anesthesia with sevoflurane and maintenance anesthesia with isoflurane/nitrous oxide.
Terminal half-life is prolonged in adults with hepatic dysfunction (4.3 hours in patients undergoing isoflurane anesthesia).
Rocuronium exhibits transient increases in heart rate and minimal histamine-releasing activity at usual therapeutic doses.
Generic name: rocuronium bromide
Reference product & biosimilars
No reference, biosimilar or interchangeable associated with this drug.
Today’s intelligence on Rocuronium
Indications
The following indications are listed for Rocuronium:
- General Anesthesia Adjunct
- Muscle Relaxation
- Skeletal Muscle Relaxation For Endotracheal Intubation
Also known as: Adjunct General Anesthesia, Muscle Flaccidity, Skeletal Muscle Relaxation For Endotracheal Tube Insertion, Skeletal Muscle Relaxation For Intratracheal Intubation, Skeletal Muscle Relaxation For Intubation Of Trachea.
Dosing
Dosage of rocuronium bromide is expressed in terms of the salt. The dosage must be adjusted carefully according to individual requirements and response. The use of a peripheral nerve stimulator is recommended to accurately monitor the degree of muscle relaxation, determine the need for additional doses, determine the adequacy of spontaneous recovery or antagonism, and minimize the complications of overdosage if additional doses are administered.
A reduction in the dosage of rocuronium bromide may be required in patients receiving general anesthetics (e.g., enflurane, isoflurane) that potentiate its neuromuscular blocking activity. Potentiation is minimal when rocuronium is administered prior to these anesthetics.
Rocuronium bromide is administered IV only.
The initial (intubating) dose of rocuronium is administered by rapid IV injection; maintenance doses may be administered by intermittent IV injection or continuous IV infusion.
For continuous IV infusion, rocuronium bromide injection should be diluted to the desired concentration (e.g., 0.5, 1, or 5 mg/mL) in a compatible IV solution (0.9% sodium chloride, 5% dextrose, 5% dextrose and 0.9% sodium chloride, lactated Ringer's, or sterile water for injection). The infusion solution should be used within 24 hours of preparation. The rate of spontaneous neuromuscular recovery following discontinuance of the infusion is likely to be comparable to the rate of recovery following administration of comparable total doses administered via repetitive bolus injections.
Rocuronium bromide injection should be stored at 2-8degreesC prior to use; the drug should not be frozen. Once removed from refrigeration, the injection should be used within 60 days; opened vials of the drug should be used within 30 days. Following dilution, the infusion solution may be stored at room temperature for up to 24 hours.
If rocuronium is administered via the same infusion line as other drugs, ensure that the infusion line is adequately flushed between administration of rocuronium and administration of drugs for which compatibility with rocuronium has not been established. Rocuronium should not be mixed in the same syringe nor administered simultaneously through the same needle as an alkaline solution.
If extravasation occurs, administration of the drug should be discontinued immediately and restarted in another vein.
No dosing information is available for this tab.
No dosing information is available for this tab.
Drug interactions
There is no enhanced messaging for this drug.
There are no contraindication interactions for this drug.
There are no severe interactions for this drug.
There are no moderate interactions for this drug.
Contraindications
*Known hypersensitivity to the drug or other neuromuscular blocking agents.
There are no contraindication contraindications for this drug.
There are no severe contraindications for this drug.
There are no moderate contraindications for this drug.
Adverse reactions
The most common adverse effects of rocuronium observed in 2% of patients in clinical studies were transient hypotension and hypertension.
There are no severe adverse reactions for this drug.
There are no less severe adverse reactions for this drug.
Precautions
No enhanced messaging available.
Rocuronium has been evaluated in pediatric patients of all ages, including neonates, receiving sevoflurane and isoflurane/nitrous oxide anesthesia, and in pediatric patients 3 months to 14 years of age receiving halothane anesthesia. In pediatric patients receiving halothane anesthesia, transient increases in heart rate were observed following an intubating dose of rocuronium; this occurred mostly in patients who did not receive atropine.
Although not conclusively demonstrated, there is some evidence suggesting that concomitant use of general anesthetics with rocuronium can prolong the corrected QT (QTc) interval in pediatric patients.
The manufacturer states that rocuronium is not recommended for rapid sequence intubation in pediatric patients.
There are no adequate and well-controlled studies of rocuronium in pregnant women. In animal studies, teratogenicity was not observed. High-dose rocuronium was associated with acute symptoms of respiratory dysfunction in pregnant, conscious, non-ventilated rabbits and rats. The incidence of late embryonic death was increased in rats, most likely due to oxygen deficiency; this finding is not likely to be relevant for humans, since immediate mechanical ventilation of the intubated patient will prevent embryofetal hypoxia. Use rocuronium during pregnancy only if the potential benefit justifies the potential risk to the fetus.
Rocuronium has been used in a limited number of pregnant women undergoing cesarean section. The manufacturer states that the drug is not recommended for rapid sequence induction in patients undergoing cesarean section because of possible poor or inadequate intubating conditions.
No information is available regarding the use of rocuronium in lactating patients.
Geriatric patients may exhibit a slightly prolonged median clinical duration of blockade (46, 62, and 94 minutes with rocuronium doses of 0.6, 0.9, and 1.2 mg/kg, respectively, under opioid/nitrous oxide/oxygen anesthesia). No differences in duration of neuromuscular blockade following maintenance doses of rocuronium were observed between geriatric patients and younger patients, but increased sensitivity of some older individuals cannot be ruled out.
Rocuronium has been evaluated in geriatric patients >=65 years of age in clinical studies. Geriatric patients exhibited a slightly slower onset and increased duration of neuromuscular blockade with rocuronium compared with younger adults; however, recovery times were not prolonged. Other clinical experience has not revealed age-related differences in response among geriatric patients receiving the drug; however, the possibility of greater sensitivity of some older patients cannot be ruled out.
ICD codes
No ICD codes are available for this drug.
Formulary status
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Last reviewed · Source: First Databank (FDB) drug data
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