If you are a tobacco smoker, use of Acetaminophen can increase the risk of liver side effects. Immediately tell your doctor if you get severe abdominal pain, nausea, vomiting, or yellowing of the skin. Do not exceed 4 g acetaminophen/day in adults.
Captive iguanas often live to be 10-12 years old. There are reports of them having lived past 20 years in captivity. Only about a third of the iguanas sold in pet stores survive to maturity because of importation stress, improper diet, temperature and sunlight. In the wild, the number is even lower because the babies are finger-food for a number of jungle predators.
Acclimation for free roaming iguanas is much the same, but since the majority of iguana owners opt for their iguanas to live in a habitat, and since free roaming can involve many other factors, the steps listed here are aimed towards iguanas that will be kept in a habitat.