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Each package contains one single use vial with lyophilized North American Coral Snake Antivenin (Equine) for dilution with 10 mL of diluent (Sterile Water for Injection, USP). Contents of each reconstituted vial can neutralize approximately 250 mouse (Lethal Dose) LD50 or approximately 2 mg of M. f. fulvius venom.
To report an adverse event related to Pfizer-BioNTech COVID-19 Vaccine (also known as COMIRNATY®, COVID-19 mRNA, Vaccine BNT162b2 or BNT162) or Pfizer COVID-19 Treatment (also known as PAXLOVID™ (nirmatrelvir tablets; ritonavir tablets)), and you are not part of a clinical trial* for this product, click the link below to submit your information:
*If you are involved in a clinical trial for either product, adverse events should be reported to your coordinating study site.
If you cannot use the above website or would like to report an adverse event related to a different Pfizer product, please call Pfizer Safety at