Introduction
Relaxtion belongs to a group of medicines called muscle relaxants. It is used along with general anesthesia or sedatives to provide skeletal muscle relaxation during surgical procedures. It is also used to facilitate emergency airway management in patients in intensive care.
Relaxtion is generally administered by a healthcare professional. You should not self-administer this medicine at home. The dose and duration will depend on what you are taking it for and how well it helps your symptoms.
The most common side effects of this medicine include skin flush, skin redness, and itching. It may also cause pain, redness, and swelling at the site of injection. If any of these side effects persist or worsen, you should let your doctor know. Your doctor may be able to suggest ways of preventing or reducing the symptoms.
Before using it, you should let your doctor know if you have any medical conditions or disorders. You should also tell your doctor all the other medicines you are using or taking. Pregnant and breastfeeding women should consult their doctors before using this medicine.
Uses of Relaxtion
- Skeletal mucle relaxation during surgery
Side effects of Relaxtion
Common
- Itching
- Skin rash
- Erythema (skin redness)
- Injection site reactions (pain, swelling, redness)
How to use Relaxtion
Your doctor or nurse will give you this medicine. Kindly do not self administer.
How Relaxtion works
Relaxtion relaxes the muscles by blocking the impulses from the nerves.
Indication
Intravenous
Muscle relaxant in general anaesthesia, Endotracheal intubation, Aid controlled ventilation
Adult: Initially, 300-600 mcg/kg as inj. Subsequently, 100-200 mcg/kg when necessary or every 15-25 minutes for maintenance in prolonged procedures. Alternatively, maintenance can also be achieved by continuous infusion at 5-10 mcg/kg/minute. Initial dose should be given over 60 seconds in patients with CV disease. Dose should be calculated based on ideal body-weight in obese patients.
Special Populations: For patients with significant CV disease or any history (e.g. severe anaphylactoid reactions or asthma) suggesting a greater risk of histamine release, an initial dose of 0.3-0.4 mg/kg should be given slowly or in divided doses over 1 min. For adults receiving atracurium following the use of succinylcholine for intubation under balanced anesthesia, an initial dose of 0.3-0.4 mg/kg is recommended. Dosage reductions may be necessary in patients with neuromuscular disease, severe electrolyte disorders or carcinomatosis in which potentiation of neuromuscular block or difficulties with reversal have been demonstrated.
Administration
Mixed block with suxamethonium which is difficult to reverse with anticholinergic drugs. Ketamine may potentiate the effects of atracurium. Concurrent use with tamoxifen or danazol may prolong effects of atracurium.
Potentially Fatal: Neuromuscular blockade potentiated by parenteral Mg salts, anaesthetics, aminoglycosides and polypeptide antibiotics, botulinum A toxin. Malignant hyperthermia with halogenated anaesthetics and succinylcholine. MAOIs.
Adult Dose
Neonates; severe CVS disorders; renal or hepatic dysfunction; myasthenia gravis and other neuromuscular disorders; severe electrolyte imbalances; respiratory insufficiency or pulmonary disease, asthma; burns; cardiopulmonary bypass; smoking; pregnancy and lactation. Dosage for obese patients should be based on ideal body-weight to prevent overdosing.
Renal Dose
Atracurium besilate blocks neural transmission at the neuromuscular junction by competitive binding at the cholinergic receptor sites on the motor end plate.
Contraindication
Intravenous
Muscle relaxant in general anaesthesia, Endotracheal intubation, Aid controlled ventilation
Child: >2 mth: Initially, 400-500 mcg/kg as inj. Maintenance dose: 80-100 mcg/kg; first maintenance dose may be given 20-45 min after the initial dose, subsequently, may be repeated every 15-25 min.
For children 1 mth-2 yr: 300-400 mcg/kg may be used as initial dose in those who are under halothane anaesthesia. Maintenance doses may be admin more frequently in infant and children than adults.
Precaution
General anaesthesia, Endotracheal intubation, Aid controlled ventilation
Pregnancy Category Note
Cutaneous reactions; bradycardia, transient hypotension in patients with CVS disorders; dyspnoea, bronchospasm; rash and urticaria.
Interaction
Hypersensitivity.