| 21. | By chance, Cruz knew somebody who raised black mambas _ and had the antivenin.
 
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 | 22. | At least eight different polyvalent and monovalent antivenins are available against bites from this species.
 
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 | 23. | This gives the antivenin its polyvalent property.
 
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 | 24. | Instead of the average 30 vials of antivenin administered to victims, he was given 60.
 
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 | 25. | Hospitals that have some antivenin probably have both the Wyeth and Protherics products, toxicologists said.
 
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 | 26. | Wyeth discontinued the manufacture of coral snake antivenin in 2010, citing a lack of profitability.
 
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 | 27. | Hospital workers quickly injected her with 17 vials of antivenin, nearly twice the amount usually used.
 
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 | 28. | Venom 1, founded in 1998, has provided antivenins to hospitals from Canada to the Caribbean.
 
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 | 29. | The crotaline Fab antivenin has been shown to be effective in the treatment of canine rattlesnake bites.
 
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 | 30. | Antivenin alone costs around $ 200 a unit, and patients are normally started out with 10 units,
 
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