These are listed for their collectible value rather than utility.  Please note the following:

1.  Vicodin pen does not have an ink cartridge.  Print on the pen inspected with a magnifying glass and generally in very good condition except for light wear on the "ES", "bitartrate" (to the right with the 7.5mg) and on the word "and" on the 7.5mg side (see photos - the silver unfortunately creates a lot of reflection from its environment, including the black case of my phone camera, so I tried to make small turns so all print could be seen).

2.  OxyContin pen has an ink cartridge and while it will write, it feels like the ink has aged.  The print on all three sides does have some wear.  Please see close up photos.

Please feel free to message me with any questions.  Thank you for looking!