Rocuronium Bromide Solution

Rocuronium Bromide Solution Manufacturers

• Sagent Pharmaceuticals
  

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  Rocuronium Bromide Solution | Sagent Pharmaceuticals

  

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  Rocuronium bromide injection is for intravenous use only. This drug should only be administered by experienced clinicians or trained individuals supervised by an experienced clinician familiar with the use, actions, characteristics, and complications of neuromuscular blocking agents. Doses of rocuronium bromide injection should be individualized and a peripheral nerve stimulator should be used to monitor drug effect, need for additional doses, adequacy of spontaneous recovery or antagonism, and to decrease the complications of overdosage if additional doses are administered.

  The dosage information which follows is derived from studies based upon units of drug per unit of body weight. It is intended to serve as an initial guide to clinicians familiar with other neuromuscular blocking agents to acquire experience with rocuronium bromide.

  In patients in whom potentiation of, or resistance to, neuromuscular block is anticipated, a dose adjustment should be considered [see Dosage and Administration (2.5), Warnings and Precautions (5.9, 5.12), Drug Interactions (7.2, 7.3, 7.4, 7.5, 7.6, 7.8, 7.10), and Use in Specific Populations (8.6)].

  2.1 Dose for Tracheal Intubation

  The recommended initial dose of rocuronium bromide injection, regardless of anesthetic technique, is 0.6 mg/kg. Neuromuscular block sufficient for intubation (80% block or greater) is attained in a median (range) time of 1 (0.4-6) minute(s) and most patients have intubation completed within 2 minutes. Maximum blockade is achieved in most patients in less than 3 minutes. This dose may be expected to provide 31 (15-85) minutes of clinical relaxation under opioid/nitrous oxide/oxygen anesthesia. Under halothane, isoflurane, and enflurane anesthesia, some extension of the period of clinical relaxation should be expected [see Drug Interactions (7.3)].

  A lower dose of rocuronium bromide (0.45 mg/kg) may be used. Neuromuscular block sufficient for intubation (80% block or greater) is attained in a median (range) time of 1.3 (0.8-6.2) minute(s), and most patients have intubation completed within 2 minutes. Maximum blockade is achieved in most patients in less than 4 minutes. This dose may be expected to provide 22 (12-31) minutes of clinical relaxation under opioid/nitrous oxide/oxygen anesthesia. Patients receiving this low dose of 0.45 mg/kg who achieve less than 90% block (about 16% of these patients) may have a more rapid time to 25% recovery, 12 to 15 minutes.

  A large bolus dose of 0.9 or 1.2 mg/kg can be administered under opioid/nitrous oxide/oxygen anesthesia without adverse effects to the cardiovascular system [see Clinical Pharmacology (12.2)].

  2.2 Rapid Sequence Intubation

  In appropriately premedicated and adequately anesthetized patients, rocuronium bromide 0.6 to 1.2 mg/kg will provide excellent or good intubating conditions in most patients in less than 2 minutes [see Clinical Studies (14.1)].

  2.3 Maintenance Dosing

  Maintenance doses of 0.1, 0.15, and 0.2 mg/kg rocuronium bromide, administered at 25% recovery of control T1 (defined as 3 twitches of train-of-four), provide a median (range) of 12 (2-31), 17 (6-50), and 24 (7-69) minutes of clinical duration under opioid/nitrous oxide/oxygen anesthesia [see Clinical Pharmacology (12.2)]. In all cases, dosing should be guided based on the clinical duration following initial dose or prior maintenance dose and not administered until recovery of neuromuscular function is evident. A clinically insignificant cumulation of effect with repetitive maintenance dosing has been observed [see Clinical Pharmacology (12.2)].

  2.4 Use by Continuous Infusion

  Infusion at an initial rate of 10 to 12 mcg/kg/min of rocuronium bromide injection should be initiated only after early evidence of spontaneous recovery from an intubating dose. Due to rapid redistribution [see Clinical Pharmacology (12.3)] and the associated rapid spontaneous recovery, initiation of the infusion after substantial return of neuromuscular function (more than 10% of control T1) may necessitate additional bolus doses to maintain adequate block for surgery.

  Upon reaching the desired level of neuromuscular block, the infusion of rocuronium bromide injection must be individualized for each patient. The rate of administration should be adjusted according to the patient's twitch response as monitored with the use of a peripheral nerve stimulator. In clinical trials, infusion rates have ranged from 4 to 16 mcg/kg/min.

  Inhalation anesthetics, particularly enflurane and isoflurane, may enhance the neuromuscular blocking action of nondepolarizing muscle relaxants. In the presence of steady-state concentrations of enflurane or isoflurane, it may be necessary to reduce the rate of infusion by 30% to 50%, at 45 to 60 minutes after the intubating dose.

  Spontaneous recovery and reversal of neuromuscular blockade following discontinuation of rocuronium bromide infusion may be expected to proceed at rates comparable to that following comparable total doses administered by repetitive bolus injections [see Clinical Pharmacology (12.2)].

  Infusion solutions of rocuronium bromide injection can be prepared by mixing rocuronium bromide injection with an appropriate infusion solution such as 5% glucose in water or lactated Ringers [see Dosage and Administration (2.6)]. These infusion solutions should be used within 24 hours of mixing. Unused portions of infusion solutions should be discarded.

  Infusion rates of rocuronium bromide injection can be individualized for each patient using the following tables for 3 different concentrations of rocuronium bromide solution as guidelines:

  Table 1: Infusion Rates Using Rocuronium Bromide Injection (0.5 mg/mL)*

  * 50 mg rocuronium bromide in 100 mL solution.

  Patient Weight Drug Delivery Rate (mcg/kg/min) (kg) (lbs) 4 5 6 7 8 9 10 12 14 16 Infusion Delivery Rate (mL/hr) 10 22 4.8 6 7.2 8.4 9.6 10.8 12 14.4 16.8 19.2 15 33 7.2 9 10.8 12.6 14.4 16.2 18 21.6 25.2 28.8 20 44 9.6 12 14.4 16.8 19.2 21.6 24 28.8 33.6 38.4 25 55 12 15 18 21 24 27 30 36 42 48 35 77 16.8 21 25.2 29.4 33.6 37.8 42 50.4 58.8 67.2 50 110 24 30 36 42 48 54 60 72 84 96 60 132 28.8 36 43.2 50.4 57.6 64.8 72 86.4 100.8 115.2 70 154 33.6 42 50.4 58.8 67.2 75.6 84 100.8 117.6 134.4 80 176 38.4 48 57.6 67.2 76.8 86.4 96 115.2 134.4 153.6 90 198 43.2 54 64.8 75.6 86.4 97.2 108 129.6 151.2 172.8 100 220 48 60 72 84 96 108 120 144 168 192 Table 2: Infusion Rates Using Rocuronium Bromide Injection (1 mg/mL)*

  * 100 mg rocuronium bromide in 100 mL solution.

  Patient Weight Drug Delivery Rate (mcg/kg/min) (kg) (lbs) 4 5 6 7 8 9 10 12 14 16 Infusion Delivery Rate (mL/hr) 10 22 2.4 3 3.6 4.2 4.8 5.4 6 7.2 8.4 9.6 15 33 3.6 4.5 5.4 6.3 7.2 8.1 9 10.8 12.6 14.4 20 44 4.8 6 7.2 8.4 9.6 10.8 12 14.4 16.8 19.2 25 55 6 7.5 9 10.5 12 13.5 15 18 21 24 35 77 8.4 10.5 12.6 14.7 16.8 18.9 21 25.2 29.4 33.6 50 110 12 15 18 21 24 27 30 36 42 48 60 132 14.4 18 21.6 25.2 28.8 32.4 36 43.2 50.4 57.6 70 154 16.8 21 25.2 29.4 33.6 37.8 42 50.4 58.8 67.2 80 176 19.2 24 28.8 33.6 38.4 43.2 48 57.6 67.2 76.8 90 198 21.6 27 32.4 37.8 43.2 48.6 54 64.8 75.6 86.4 100 220 24 30 36 42 48 54 60 72 84 96 Table 3: Infusion Rates Using Rocuronium Bromide Injection (5 mg/mL)*

  * 500 mg rocuronium bromide in 100 mL solution.

  Patient Weight Drug Delivery Rate (mcg/kg/min) (kg) (lbs) 4 5 6 7 8 9 10 12 14 16 Infusion Delivery Rate (mL/hr) 10 22 0.5 0.6 0.7 0.8 1 1.1 1.2 1.4 1.7 1.9 15 33 0.7 0.9 1.1 1.3 1.4 1.6 1.8 2.2 2.5 2.9 20 44 1 1.2 1.4 1.7 1.9 2.2 2.4 2.9 3.4 3.8 25 55 1.2 1.5 1.8 2.1 2.4 2.7 3 3.6 4.2 4.8 35 77 1.7 2.1 2.5 2.9 3.4 3.8 4.2 5 5.9 6.7 50 110 2.4 3 3.6 4.2 4.8 5.4 6 7.2 8.4 9.6 60 132 2.9 3.6 4.3 5 5.8 6.5 7.2 8.6 10.1 11.5 70 154 3.4 4.2 5 5.9 6.7 7.6 8.4 10.1 11.8 13.4 80 176 3.8 4.8 5.8 6.7 7.7 8.6 9.6 11.5 13.4 15.4 90 198 4.3 5.4 6.5 7.6 8.6 9.7 10.8 13 15.1 17.3 100 220 4.8 6 7.2 8.4 9.6 10.8 12 14.4 16.8 19.2 2.5 Dosage in Specific Populations

  Pediatric Patients: The recommended initial intubation dose of rocuronium bromide is 0.6 mg/kg; however, a lower dose of 0.45 mg/kg may be used depending on anesthetic technique and the age of the patient.

  For sevoflurane (induction) rocuronium bromide injection doses of 0.45 mg/kg and 0.6 mg/kg in general produce excellent to good intubating conditions within 75 seconds. When halothane is used, a 0.6 mg/kg dose of rocuronium bromide resulted in excellent to good intubating conditions within 60 seconds.

  The time to maximum block for an intubating dose was shortest in infants (28 days up to 3 months) and longest in neonates (birth to less than 28 days). The duration of clinical relaxation following an intubating dose is shortest in children (greater than 2 years up to 11 years) and longest in infants.

  When sevoflurane is used for induction and isoflurane/nitrous oxide for maintenance of general anesthesia, maintenance dosing of rocuronium bromide injection can be administered as bolus doses of 0.15 mg/kg at reappearance of T3 in all pediatric age groups. Maintenance dosing can also be administered at the reappearance of T2 at a rate of 7 to 10 mcg/kg/min, with the lowest dose requirement for neonates (birth to less than 28 days) and the highest dose requirement for children (greater than 2 years up to 11 years).

  When halothane is used for general anesthesia, patients ranging from 3 months old through adolescence can be administered rocuronium bromide maintenance doses of 0.075 to 0.125 mg/kg upon return of T1 to 0.25% to provide clinical relaxation for 7 to 10 minutes. Alternatively, a continuous infusion of rocuronium bromide injection initiated at a rate of 12 mcg/kg/min upon return of T1 to 10% (one twitch present in train-of-four) may also be used to maintain neuromuscular blockade in pediatric patients.

  Additional information for administration to pediatric patients of all age groups is presented elsewhere in the label [see Clinical Pharmacology (12.2)].

  The infusion of rocuronium bromide injection must be individualized for each patient. The rate of administration should be adjusted according to the patient's twitch response as monitored with the use of a peripheral nerve stimulator. Spontaneous recovery and reversal of neuromuscular blockade following discontinuation of rocuronium bromide infusion may be expected to proceed at rates comparable to that following similar total exposure to single bolus doses [see Clinical Pharmacology (12.2)].

  Rocuronium bromide injection is not recommended for rapid sequence intubation in pediatric patients.

  Geriatric Patients: Geriatric patients (65 years or older) exhibited a slightly prolonged median (range) clinical duration of 46 (22-73), 62 (49-75), and 94 (64-138) minutes under opioid/nitrous oxide/oxygen anesthesia following doses of 0.6, 0.9, and 1.2 mg/kg, respectively. No differences in duration of neuromuscular blockade following maintenance doses of rocuronium bromide were observed between these subjects and younger subjects, but greater sensitivity of some older individuals cannot be ruled out [see Clinical Pharmacology (12.2) and Clinical Studies (14.2)]. [See also Warnings and Precautions (5.4).]

  Patients with Renal or Hepatic Impairment: No differences from patients with normal hepatic and kidney function were observed for onset time at a dose of 0.6 mg/kg rocuronium bromide. When compared to patients with normal renal and hepatic function, the mean clinical duration is similar in patients with end-stage renal disease undergoing renal transplant, and is about 1.5 times longer in patients with hepatic disease. Patients with renal failure may have a greater variation in duration of effect [see Use in Specific Populations (8.6, 8.7) and Clinical Pharmacology (12.3)].

  Obese Patients: In obese patients, the initial dose of rocuronium bromide 0.6 mg/kg should be based upon the patient's actual body weight [see Clinical Studies (14.1)].

  An analysis across all US controlled clinical studies indicates that the pharmacodynamics of rocuronium bromide are not different between obese and nonobese patients when dosed based upon their actual body weight.

  Patients with Reduced Plasma Cholinesterase Activity: Rocuronium metabolism does not depend on plasma cholinesterase so dosing adjustments are not needed in patients with reduced plasma cholinesterase activity.

  Patients with Prolonged Circulation Time: Because higher doses of rocuronium bromide produce a longer duration of action, the initial dosage should usually not be increased in these patients to reduce onset time; instead, in these situations, when feasible, more time should be allowed for the drug to achieve onset of effect [see Warnings and Precautions (5.7)].

  Patients with Drugs or Conditions Causing Potentiation of Neuromuscular Block: The neuromuscular blocking action of rocuronium bromide is potentiated by isoflurane and enflurane anesthesia. Potentiation is minimal when administration of the recommended dose of rocuronium bromide occurs prior to the administration of these potent inhalation agents. The median clinical duration of a dose of 0.57 to 0.85 mg/kg was 34, 38, and 42 minutes under opioid/nitrous oxide/oxygen, enflurane and isoflurane maintenance anesthesia, respectively. During 1 to 2 hours of infusion, the infusion rate of rocuronium bromide injection required to maintain about 95% block was decreased by as much as 40% under enflurane and isoflurane anesthesia [see Drug Interactions (7.3)].

  2.6 Preparation for Administration of Rocuronium Bromide Injection

  Diluent Compatibility: Rocuronium bromide injection is compatible in solution with:

    0.9% NaCl solution          sterile water for injection   5% glucose in water         lactated Ringers   5% glucose in saline

  Rocuronium bromide injection is compatible in the above solutions at concentrations up to 5 mg/mL for 24 hours at room temperature in plastic bags, glass bottles, and plastic syringe pumps.

  Drug Admixture Incompatibility: Rocuronium bromide injection is physically incompatible when mixed with the following drugs:

    amphotericin                     hydrocortisone sodium succinate   amoxicillin                          insulin   azathioprine                      Intralipid   cefazolin                            ketorolac   cloxacillin                           lorazepam   dexamethasone               methohexital   diazepam                          methylprednisolone   erythromycin                     thiopental   famotidine                          trimethoprim   furosemide                         vancomycin

  If rocuronium bromide injection is administered via the same infusion line that is also used for other drugs, it is important that this infusion line is adequately flushed between administration of rocuronium bromide and drugs for which incompatibility with rocuronium bromide injection has been demonstrated or for which compatibility with rocuronium bromide injection has not been established.

  Infusion solutions should be used within 24 hours of mixing. Unused portions of infusion solutions should be discarded.

  Rocuronium bromide injection should not be mixed with alkaline solutions [see Warnings and Precautions (5.10)].

  Visual Inspection: Parenteral drug products should be inspected visually for particulate matter and clarity prior to administration whenever solution and container permit. Do not use solution if particulate matter is present.

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• X-gen Pharmaceuticals, Inc.
  

  ×

  Rocuronium Bromide Solution | X-gen Pharmaceuticals, Inc.

  

  ---

  Rocuronium bromide injection is for intravenous use only. This drug should only be administered by experienced clinicians or trained individuals supervised by an experienced clinician familiar with the use, actions, characteristics, and complications of neuromuscular blocking agents. Doses of rocuronium bromide injection should be individualized and a peripheral nerve stimulator should be used to monitor drug effect, need for additional doses, adequacy of spontaneous recovery or antagonism, and to decrease the complications of overdosage if additional doses are administered.

  The dosage information which follows is derived from studies based upon units of drug per unit of body weight. It is intended to serve as an initial guide to clinicians familiar with other neuromuscular blocking agents to acquire experience with rocuronium bromide.

  In patients in whom potentiation of, or resistance to, neuromuscular block is anticipated, a dose adjustment should be considered [see Dosage and Administration (2.5), Warnings and Precautions (5.9,5.12), Drug Interactions (7.2, 7.3, 7.4, 7.5, 7.6, 7.8, 7.10), and Use in Specific Populations (8.6)].

  2.1 Dose for Tracheal Intubation

  The recommended initial dose of rocuronium bromide, regardless of anesthetic technique, is 0.6 mg/kg. Neuromuscular block sufficient for intubation (80% block or greater) is attained in a median (range) time of 1 (0.4 to 6) minute(s) and most patients have intubation completed within 2 minutes. Maximum blockade is achieved in most patients in less than 3 minutes. This dose may be expected to provide 31 (15 to 85) minutes of clinical relaxation under opioid/nitrous oxide/oxygen anesthesia. Under halothane, isoflurane, and enflurane anesthesia, some extension of the period of clinical relaxation should be expected [see Drug Interactions (7.3)].

  A lower dose of rocuronium bromide (0.45 mg/kg) may be used. Neuromuscular block sufficient for intubation (80% block or greater) is attained in a median (range) time of 1.3 (0.8 to 6.2) minute(s), and most patients have intubation completed within 2 minutes. Maximum blockade is achieved in most patients in less than 4 minutes. This dose may be expected to provide 22 (12 to 31) minutes of clinical relaxation under opioid/nitrous oxide/oxygen anesthesia. Patients receiving this low dose of 0.45 mg/kg who achieve less than 90% block (about 16% of these patients) may have a more rapid time to 25% recovery, 12 to 15 minutes.

  A large bolus dose of 0.9 or 1.2 mg/kg can be administered under opioid/nitrous oxide/oxygen anesthesia without adverse effects to the cardiovascular system [see Clinical Pharmacology (12.2)].

  2.2 Rapid Sequence Intubation

  In appropriately premedicated and adequately anesthetized patients, Rocuronium Bromide Injection 0.6 to 1.2 mg/kg will provide excellent or good intubating conditions in most patients in less than 2 minutes [see Clinical Studies (14.1)].

  2.3 Maintenance Dosing

  Maintenance doses of 0.1, 0.15, and 0.2 mg/kg rocuronium bromide, administered at 25% recovery of control T1 (defined as 3 twitches of train-of-four), provide a median (range) of 12 (2 to 31), 17 (6 to 50), and 24 (7 to 69) minutes of clinical duration under opioid/nitrous oxide/oxygen anesthesia [see Clinical Pharmacology (12.2)]. In all cases, dosing should be guided based on the clinical duration following initial dose or prior maintenance dose and not administered until recovery of neuromuscular function is evident. A clinically insignificant cumulation of effect with repetitive maintenance dosing has been observed [see Clinical Pharmacology (12.2)].

  2.4 Use by Continuous Infusion

  Infusion at an initial rate of 10 to 12 mcg/kg/min of rocuronium bromide should be initiated only after early evidence of spontaneous recovery from an intubating dose. Due to rapid redistribution [see Clinical Pharmacology (12.3)] and the associated rapid spontaneous recovery, initiation of the infusion after substantial return of neuromuscular function (more than 10% of control T1) may necessitate additional bolus doses to maintain adequate block for surgery.

  Upon reaching the desired level of neuromuscular block, the infusion of rocuronium bromide must be individualized for each patient. The rate of administration should be adjusted according to the patient's twitch response as monitored with the use of a peripheral nerve stimulator. In clinical trials, infusion rates have ranged from 4 to 16 mcg/kg/min.

  Inhalation anesthetics, particularly enflurane and isoflurane, may enhance the neuromuscular blocking action of nondepolarizing muscle relaxants. In the presence of steady-state concentrations of enflurane or isoflurane, it may be necessary to reduce the rate of infusion by 30 to 50%, at 45 to 60 minutes after the intubating dose.

  Spontaneous recovery and reversal of neuromuscular blockade following discontinuation of rocuronium bromide infusion may be expected to proceed at rates comparable to that following comparable total doses administered by repetitive bolus injections [see Clinical Pharmacology (12.2)].

  Infusion solutions of rocuronium bromide can be prepared by mixing rocuronium bromide with an appropriate infusion solution such as 5% glucose in water or lactated Ringers [see Dosage and Administration (2.6)]. These infusion solutions should be used within 24 hours of mixing. Unused portions of infusion solutions should be discarded.

  Infusion rates of rocuronium bromide can be individualized for each patient using the following tables for 3 different concentrations of rocuronium bromide solution as guidelines:

  2.5 Dosage in Specific Populations

  Pediatric Patients: The recommended initial intubation dose of rocuronium bromide is 0.6 mg/kg; however, a lower dose of 0.45 mg/kg may be used depending on anesthetic technique and the age of the patient.

  For sevoflurane (induction) rocuronium bromide doses of 0.45 mg/kg and 0.6 mg/kg in general produce excellent to good intubating conditions within 75 seconds. When halothane is used, a 0.6 mg/kg dose of rocuronium bromide resulted in excellent to good intubating conditions within 60 seconds.

  The time to maximum block for an intubating dose was shortest in infants (28 days up to 3 months) and longest in neonates (birth to less than 28 days). The duration of clinical relaxation following an intubating dose is shortest in children (greater than 2 years up to 11 years) and longest in infants.

  When sevoflurane is used for induction and isoflurane/nitrous oxide for maintenance of general anesthesia, maintenance dosing of rocuronium bromide can be administered as bolus doses of 0.15 mg/kg at reappearance of T3 in all pediatric age groups. Maintenance dosing can also be administered at the reappearance of T2 at a rate of 7 to 10 mcg/kg/min, with the lowest dose requirement for neonates (birth to less than 28 days) and the highest dose requirement for children (greater than 2 years up to 11 years).

  When halothane is used for general anesthesia, patients ranging from 3 months old through adolescence can be administered rocuronium bromide maintenance doses of 0.075 to 0.125 mg/kg upon return of T1 to 0.25% to provide clinical relaxation for 7 to 10 minutes. Alternatively, a continuous infusion of rocuronium bromide initiated at a rate of 12 mcg/kg/min upon return of T1 to 10% (one twitch present in train-of-four) may also be used to maintain neuromuscular blockade in pediatric patients.

  Additional information for administration to pediatric patients of all age groups is presented elsewhere in the label [see Clinical Pharmacology (12.2)].

  The infusion of rocuronium bromide must be individualized for each patient. The rate of administration should be adjusted according to the patient"s twitch response as monitored with the use of a peripheral nerve stimulator. Spontaneous recovery and reversal of neuromuscular blockade following discontinuation of rocuronium bromide infusion may be expected to proceed at rates comparable to that following similar total exposure to single bolus doses [seeClinical Pharmacology (12.2)].

  Rocuronium bromide is not recommended for rapid sequence intubation in pediatric patients.

  Geriatric Patients: Geriatric patients (65 years or older) exhibited a slightly prolonged median (range) clinical duration of 46 (22-73), 62 (49-75), and 94 (64-138) minutes under opioid/nitrous oxide/oxygen anesthesia following doses of 0.6, 0.9, and 1.2 mg/kg, respectively. No differences in duration of neuromuscular blockade following maintenance doses of rocuronium bromide infusion were observed between these subjects and younger subjects, but greater sensitivity of some older individuals cannot be ruled out [see Clinical Pharmacology (12.2) and Clinical Studies (14.2)]. [See also Warnings and Precautions (5.4).]

  Patients with Renal or Hepatic Impairment: No differences from patients with normal hepatic and kidney function were observed for onset time at a dose of 0.6 mg/kg rocuronium bromide. When compared to patients with normal renal and hepatic function, the mean clinical duration is similar in patients with end-stage renal disease undergoing renal transplant, and is about 1.5 times longer in patients with hepatic disease. Patients with renal failure may have a greater variation in duration of effect [see Use in Specific Populations (8.6, 8.7) and Clinical Pharmacology (12.3)].

  Obese Patients: In obese patients, the initial dose of rocuronium bromide 0.6 mg/kg should be based upon the patient's actual body weight [see Clinical Studies (14.1)].

  An analysis across all US controlled clinical studies indicates that the pharmacodynamics of rocuronium bromide are not different between obese and nonobese patients when dosed based upon their actual body weight.

  Patients with Reduced Plasma Cholinesterase Activity: Rocuronium metabolism does not depend on plasma cholinesterase so dosing adjustments are not needed in patients with reduced plasma cholinesterase activity.

  Patients with Prolonged Circulation Time: Because higher doses of rocuronium bromide produce a longer duration of action, the initial dosage should usually not be increased in these patients to reduce onset time; instead, in these situations, when feasible, more time should be allowed for the drug to achieve onset of effect [see Warnings and Precautions (5.7)].

  Patients with Drugs or Conditions Causing Potentiation of Neuromuscular Block: The neuromuscular blocking action of rocuronium bromide is potentiated by isoflurane and enflurane anesthesia. Potentiation is minimal when administration of the recommended dose of rocuronium bromide occurs prior to the administration of these potent inhalation agents. The median clinical duration of a dose of 0.57 to 0.85 mg/kg was 34, 38, and 42 minutes under opioid/nitrous oxide/oxygen, enflurane and isoflurane maintenance anesthesia, respectively. During 1 to 2 hours of infusion, the infusion rate of rocuronium bromide required to maintain about 95% block was decreased by as much as 40% under enflurane and isoflurane anesthesia [see Drug Interactions (7.3)].

  2.6 Preparation for Administration of Rocuronium Bromide

  Diluent Compatibility: Rocuronium bromide is compatible in solution with:

  0.9% NaCl solution          sterile water for injection  5% glucose in water  lactated Ringers  5% glucose in saline  

  Rocuronium bromide is compatible in the above solutions at concentrations up to 5 mg/mL for 24 hours at room temperature in plastic bags, glass bottles, and plastic syringe pumps.

  Drug Admixture Incompatibility: Rocuronium bromide is physically incompatible when mixed with the following drugs:

  amphotericin              hydrocortisone sodium succinate amoxicillin  insulin  azathioprine  intralipid  cefazolin  ketorolac  cloxacillin  lorazepam  dexamethasone  methohexital  diazepam  methylprednisolone  erythromycin  thiopental  famotidine  trimethoprim  furosemide  vancomycin

  If rocuronium bromide is administered via the same infusion line that is also used for other drugs, it is important that this infusion line is adequately flushed between administration of rocuronium bromide and drugs for which incompatibility with rocuronium bromide has been demonstrated or for which compatibility with rocuronium bromide has not been established.

  Infusion solutions should be used within 24 hours of mixing. Unused portions of infusion solutions should be discarded.

  Rocuronium bromide injection should not be mixed with alkaline solutions [see Warnings and Precautions (5.10)].

  Visual Inspection: Parenteral drug products should be inspected visually for particulate matter and clarity prior to administration whenever solution and container permit. Do not use solution if particulate matter is present.

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