Dantrolene

Trade name

Dantrium

Presentation and preparation

Vial size
(powder volume)
Fluid to add
Volume to add
Resulting concentration
20 mg
(negligible)
Water for injections 60 mL  0.33 mg/mL

To reconstitute a vial quickly, use an airway needle to allow the full volume of 60 mL to be added immediately.

Shake until solution is clear.

IV administration

Give undiluted, preferably via a central line or large peripheral vein.

Crisis dose: Give undiluted via rapid injection.

Intermittent or continuous infusions have been used post crisis.

Other routes of administration

IM: Contraindicated.

SC: Contraindicated.

Additional information

Extravasation risk. 

Ensure proper catheter placement prior to and during infusion.

Each vial of Dantrium contains 3 g mannitol; this must be considered if mannitol is used to prevent or treat late renal complications of malignant hyperthermia.

Do not use glass bottles for infusions. Use immediately after reconstitution or within 6 hours of preparation. 

Protect from light during storage, and administration.


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