I didn't mention it in the new COPD post on EC, but while melatonin is useful for COPD, it is also useful for Idiopathic Pulmonary Fibrosis (IPF)! Here is a link to the new COPD article :
Here are links to studies of melatonin and IPF :
Melatonin is not a one trick pony and has shown efficacy in multiple health issues, yet doctors seem to mainly prescribe it as a sleep aid! If melatonin could become a patented prescription drug, it would be a blockbuster drug for what ever drug company held such a patent!
There have been quite a few posts on EC about people looking for help for IPF, but I have not seen any posts discussing melatonin and IPF.
Here are some fairly recent studies suggesting that melatonin may offer some help in this area. Melatonin has a very good safety profile and is naturally produced by the human body suggesting a lower potential for adverse reactions. Melatonin is also readily available here in the states and is fairly inexpensive.
Given the severe nature of IPF, it may be beneficial to look at as many options as possible and determine their relevance for your particular situation!