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Antivenin Latrodectus Mactans (Black Widow Spider Antivenin)

Reason for the Shortage

    • Merck had low inventory of Antivenin Latrodectus Mactans.

Available Products

    • Antivenin Lactrodectus Mactans (Black Widow Spider Antivenin) powder for solution for injection, Merck, 6000 units, vial, 1 count, NDC 00006-5424-02

Estimated Resupply Dates

    • Merck is allowing 2 doses per site. This shortage is resolved.


Updated March 13, 2017 by Michelle Wheeler, PharmD, Drug Information Specialist. Created March 5, 2009 by Jane Chandramouli, PharmD, Drug Information Specialist. Copyright 2017, Drug Information Service, University of Utah, Salt Lake City, UT.


Drug Shortage Bulletins are copyrighted by the Drug Information Service of the University of Utah and provided by ASHP as its exclusive authorized distributor. ASHP and the University of Utah make no representations or warranties, express or implied, including, but not limited to, any implied warranty of merchantability and/or fitness for a particular purpose, with respect to such information, and specifically disclaim all such warranties. Users of this information are advised that decisions regarding the use of drugs and drug therapies are complex medical decisions and that in using this information, each user must exercise his or her own independent professional judgment. Neither ASHP nor the University of Utah assumes any liability for persons administering or receiving drugs or other medical care in reliance upon this information, or otherwise in connection with this Bulletin. Neither ASHP nor the University of Utah endorses or recommends the use of any particular drug. Any application of this information for any purpose shall be limited to personal, non-commercial use.

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