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24-HOUR MH HOTLINE

800-644-9737

Outside NA: 001-209-417-3722
FOR EMERGENCIES ONLY

24-HOUR MH HOTLINE: 800-644-9737
Outside NA: 001-209-417-3722
FOR EMERGENCIES ONLY

Contact NMSIS

Neuroleptic Malignant Syndrome Information Service
Box 1069
Sherburne, NY  13460-1069

Phone (607) 674-7920
Fax (607) 674-7910
Email info@nmsis.org

Dianne Daugherty, Executive Director

Stanley Caroff, MD, Director

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The mission of MHAUS is to promote optimum care and
scientific understanding of MH and related disorders.
© 2025 Malignant Hyperthermia Association of the United States. All rights reserved. The claims and opinions expressed in sponsor advertising found on this website are those of the advertiser and not necessarily the views or opinions of MHAUS, its staff or its advertisers. As a matter of policy, MHAUS representatives and clinical experts will not give advice to patients concerning their individual clinical circumstances. The MHAUS corporation does not provide funds or other support directly or indirectly for administrative overhead to institutions.