31. In any case, antivenin therapy and intravenous hydration within hours of the bite are vital for survival. 32. Of the 65 patients given antivenin , the study reported, 12 suffered an acute reaction to the treatment. 33. In India, the Haffkine Institute prepares a polyvalent antivenin that is used to treat bites from this species. 34. The standard treatment for North American pit viper bites is apparently antivenin ( crotalidae ) polyvalent ( ACP ). 35. A new study, however, has found that while antivenin does have side effects, they are rarely serious. 36. Once the horse has produced enough antibodies, 5 percent of its blood is extracted and used to make antivenin . 37. Pfizer has also decided to halt production of its antivenin for similar reasons ( see Coral snake antivenom shortage ). 38. The bill : $ 20, 000 to $ 40, 000 and anywhere from 20 to 120 vials of antivenin . 39. Local hospitals have pledged to pitch in and help each other deal with the nationwide shortage of antivenin , Kirkman said. 40. The antivenin is the newest form of the product and appears to have a lower risk of triggering an allergic reaction.
