Get the support you need to understand and treat an MH crisis

When an MH crisis occurs, you and your staff need to act quickly.2 Our tools and resources provide you with insights on MH disease education and RYANODEX® (dantrolene sodium) for injectable suspension product information that help you take action when you need to.

RYANODEX® educational tools and support


Simple fact sheet with product information and wholesale ordering information.

Download the RYANODEX® Fact Sheet.

Dosing and Administration Guide

Step-by-step instructions on how to administer RYANODEX®, including a dosage schedule based on patient’s weight.

Download the Dosing and Administration Guide.

Reconstitution and Administration Video

See how to quickly and easily reconstitute and administer RYANODEX®.

Watch the video.

MH Insights Video

Henry Rosenberg, MD, President of MHAUS, provides insight on the importance of timely treatment during an MH crisis.

Watch the video.


Malignant hyperthermia data can be found in Anesthesia & Analgesia.

  • Larach MG, Gronert GA, Allen GC, Brandom BW, Lehman EB. Clinical presentation, treatment, and complications of malignant hyperthermia in North America from 1987 to 2006. Anesth Analg. 2010;110(2):498-507.
  • Riazi S, Larach MG, Hu C, Wijeysundera D, Massey C, Kraeva N. Malignant hyperthermia in Canada: characteristics of index anesthetics in 129 malignant hyperthermia susceptible probands. Anesth Analg. 2014;118(2):381-387.

RYANODEX® is designed for speed and efficiency in an MH crisis1,7

Every minute counts to reverse the potentially fatal effects of MH.2,3

See how RYANODEX® allows for rapid reconstitution within 10 seconds so that administration of dantrolene sodium can occur in less than 1 minute, with 1 vial, by 1 provider.1

This is an MH case simulation. It shows real medical professionals following a real MH protocol. It’s a unique opportunity to watch the same MH crisis occur with different formulations.

Indication and Important Safety Information