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.
Green Iguana Facts. 1  Green Iguanas can and will reach 5 to 6 feet and weigh up to 18 pounds. 2  Green Iguanas WILL need a portion of a room or an entire room when they reach adulthood.  Adult male Green Iguanas most can become aggressive (sometimes maddeningly so) for 3 months of the year in honor of breeding season.