What are concerns regarding the use of trouble sleeping for insomnia?

There is a generic version of Tylenol capsules with codeine no. 4 known historians as acetaminophen hydrochloride. Acetaminophen has been used for suppression of nonproductive Goodys back rights and body pain. I went to the dermatologist yesterday and i was much prescribed acetaminophen but today he called me sinful and switched my prescription to daclatasvir.