Like most drugs, Xanax has a limited duration once it is ingested. Normally, Xanax stays in a personâs system for approximately 6 hours. Depending on the personâs weight, that period can extend to 10 hours. If the person is morbidly obese or has liver problems Xanax can linger on in their system for about 40 hours.
Pulmonary Fibrosis. Pulmonary fibrosis (PF) is one of a family of related diseases called interstitial lung diseases that can result in lung scarring. As the lung tissue becomes scarred, it interferes with a person's ability to breathe.In some cases, the cause of pulmonary fibrosis can be found.ulmonary fibrosis (PF) is one of a family of related diseases called interstitial lung diseases that can result in lung scarring.
Interstitial Lung Diseases. Interstitial lung disease is the name for a large group of diseases that inflame or scar the lungs. The inflammation and scarring make it hard to get enough oxygen. The scarring is called pulmonary fibrosis. Breathing in dust or other particles in the air is responsible for some types of interstitial lung diseases.