Also tell your health care professional if you are allergic to any other substances, such as preservatives. Studies on effects in pregnancy have not been done in either humans or animals. However, poisoning by pit vipers may result in miscarriages. It is not known whether pit viper antivenin passes into the breast milk. However, pit viper antivenin has not been reported to cause problems in nursing babies.
Studies show that children tolerate pit viper antivenin better than do adults.
However, children usually have more severe reactions to snakebite poisoning because of the greater amount of poison per body weight. Therefore, children may need larger doses of pit viper antivenin than do adults. Therefore, it may not be known whether they work exactly the same way they do in younger adults. Although there is no specific information comparing use of pit viper antivenin in the elderly with use in other age groups, this medicine is not expected to cause different side effects or problems in older people than it does in younger adults. The dose of pit viper antivenin will be different for different patients.