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