41. Because antivenin is derived from animal antibodies, people generally display an allergic response during infusion, known as serum sickness. 42. And a further lesson when he had an allergic reaction to the antivenin and spent several days in an intensive care unit. 43. An ambulance took van Sertima to a Miami hospital, where he was kept breathing by a ventilator as doctors administered antivenin . 44. Historically, the term " antivenin " was predominant around the world, its first published use being in 1895. 45. In 1935 he was appointed director of the Chemical Institute, primarily engaged in the production of antivenins to treat local farmers. 46. However, natural remedies for snakebite are looked at seriously by Humfeld and Balser because antivenin is so expensive and difficult to acquire. 47. In case of a bite, antivenin at New England Medical Center is available but has a short shelf life, said Passaro. 48. Because so few Americans die from snakebite, there hasn't been much call for newer, less toxic forms of antivenin . 49. Wyeth Pharmaceuticals was also making antivenin when the Protherics product, CroFab, got federal Food and Drug Administration approval in late 2000. 50. The most common and effective method is through antivenom ( or antivenin ), a serum made from the venom of the snake.
