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.
In the wild, the average female killer whale will live around 50 years, although some have survived much longer. Males don't live as long, averaging 30 years. Once again, though, there are cases of them living much longer. In captivity, they live about 25 years. Sometimes they can live into their 40s, but that is rare.