Myorelex 500mg Injection

Neon Laboratories Ltd

Composition for Myorelex 500mg Injection

iconPrescription Required

Primarily used for

Skeletal mucle relaxation during surgery
10 ml in 1 vial

Medicine Overview of Myorelex Injection


Uses of Myorelex Injection

Myorelex 500mg Injection is used for skeletal mucle relaxation during surgery.

Side effects of Myorelex Injection


Post operative muscle pain, Protein in urine, Blood in urine, Altered heart rate, Urine discolouration, Dark colored urine, Increased blood pressure, Decreased blood pressure, Increased potassium level in blood, Increased saliva production, Blurred vision, Headache, Increased intraocular pressure, Muscle damage, Muscle stiffness, Muscle weakness, Muscle twitching, Muscle pain, Rash, Skin flushing, Tenderness, Abdominal cramp, Bloating, Nausea.


How to use Myorelex Injection

Your doctor or nurse will give you this medicine. Kindly do not self administer.

How Myorelex Injection works

Myorelex 500mg Injection relaxes the muscles by blocking the impulses from the nerves.

In Depth Information on Myorelex Injection

Expert advice for Myorelex Injection

  • Tell your doctor before using suxamethonium if you have or had tetanus, tuberculosis, other severe or long standing infection or illness, cancer, anemia, malnutrition, liver or kidney problems, auto-immune diseases (multiple sclerosis), an underactive thyroid gland (myxoedema), muscle disease (such as myasthenia gravis), a blood transfusion or a heart-lung by pass, been in contact with insecticides, allergic reaction to any muscle relaxant given as part of an operation.
  • Suxamethonium paralyses the respiratory muscles as well as other skeletal muscles but has no effect on consciousness.
  • You may experience some muscle pain after suxamethonium administration if you have undergone short surgical procedure under general anaesthesia.
  • Do not drive or use machinery too soon after having an operation.
  • Tell your doctor if you are or planning to become pregnant or are breastfeeding.
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Special precautions for Myorelex 500mg Injection
Interaction with alcohol is unknown. Please consult your doctor.
Myorelex 500mg Injection may be unsafe to use during pregnancy.

Animal studies have shown adverse effects on the foetus, however, there are limited human studies. The benefits from use in pregnant women may be acceptable despite the risk. Please consult your doctor.
Myorelex 500mg Injection is probably safe to use during lact
ation. Limited human data suggests that the drug does not represent a significant risk to the baby.
Not relevant, as Myorelex 500mg Injection is intended for use in hospitalised patients.
Myorelex 500mg Injection should be used with caution in pati
ents with kidney disease. Dose adjustment of Myorelex 500mg Injection may be needed. Please consult your doctor.
Myorelex 500mg Injection should be used with caution in pati
ents with liver disease. Dose adjustment of Myorelex 500mg Injection may be needed. Please consult your doctor.
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Patient Concerns

Frequently asked questions for Myorelex 500mg Injection

Frequently asked questions for Suxamethonium

Myorelex is a nicotinic acetylcholine receptor non-competitive agonist
Myorelex is used in anesthesia to induce muscle relaxation during operations, to facilitate endotracheal intubation (help insert a tube into the windpipe), reduce strong muscle contraction
Myorelex apnoea occurs when a patient does not have the enzymes to metabolise the drug. Due to this, a patient may remain paralysed for an increased length of time and cannot breathe adequately at the end of an anaesthetic
The initial metabolite of Myorelex produces a transient negative chronotropic effect through its stimulation of sinus node muscarinic receptors. Repeated dosing or infusions of Myorelex may lead to bradycardia that is appropriately treated with atropine
Q. Why does suxamethonium cause hyperkalemia (high potassium levels in the blood)?
Administration of suxamethonium may lead to depolarization and a large efflux of intracellular potassium into the plasma thereby resulting in hyperkalemia
Myorelex cause fasciculation by an action on some distal part of motor nerve fibres
Myorelex is still used during general anesthesia
Myorelex is a short-acting muscle relaxant which exerts a depolarizing effect at the neuromuscular junction. This effect is not reversible pharmacologically
Yes, Myorelex should not be used in burned patients
Myorelex sensitivity is when the drug remains active for a longer period of time than is usual due to which muscles stay relaxed
In normal therapeutic doses, Myorelex does not cross the placental barrier in sufficient amounts.

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Substitutes for Myorelex Injection

Suxomin 500mg Injection
Vhb Life Sciences Inc
₹4.62/ml of Injection
save 21%
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