DANTROLENE sodium, 20mg, powder, vial
Valid Article
DANTROLENE
- Not in the WHO list of Essential Medicines 2023
Therapeutic Action
Muscle relaxant, directly acting agent
Indications
- Malignant hyperthermia induced by inhaled anaesthetic agents (e.g.isoflurane, sevoflurane, halothane) or by succinylcholine, in combination with appropriate supportive measures.
Instructions for use
Reconstitute the powder vial with 60 ml of water for injection. Shake the vial until complete dissolution of the powder.
When drawing up the reconstituted solution into the syringe, use the single-use filtration device provided.
Remove the filtration device from the syringe before connecting it to an IV catheter or IV infusion line.
Must be given as rapid IV bolus injection immediately once malignant hyperthermia is recognised (i.e., tachycardia, tachypnoea, central venous desaturation, hypercarbia, metabolic acidosis, skeletal muscle rigidity, increased utilisation of the anaesthesia circuit carbon dioxide absorber, cyanosis, mottling of the skin, and, frequently, fever).
Posology: 2.5mg/kg body weight (8-10 vials in adults). In most cases, a total dose of 10mg/kg body weight per 24 hours is sufficient.
Dantrolene should only be administered by physicians specialised in anaesthesia or intensive care, in hospital settings equipped with ventilation support and resuscitation equipment.
Dantrolene sodium must be readily available in operating suites and ready to use within 10 minutes of recognising a malignant hyperthermia crisis.
Contact your anaesthesia advisor for more details on posology and required actions.
Precautions for Use
Due to the potential presence of undissolved crystals or particles in the reconstituted solution (which may increase the risk of injection site reactions or tissue necrosis), the use of a filtration device is required at all times when drawing up the solution.
Do not mix dantrolene with other IV medicines.
Storage
- Below 25ºC - Protect from sunlight
- After reconstitution, use the product immediately.
- Discard any unused solution.