An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Langguth P, Lee KM, Spahn-Langguth H, Amidon GL.Langguth P, et al.Biopharm Drug Dispos. 1994 Dec;15(9):719-46. doi: 10.1002/bdd.2510150902.Biopharm Drug Dispos. 1994.PMID: 7888602