Is Clonidine a Black Box Warning?

The dose thing that I use off of my epinephrine is based up on a study by Dan Katz where he did a randomized controlled trial of adding epinephrine. He looked at basically the duration of anesthesia and found that that 200 mics epinephrine group definitely prolonged the duration of the sensory blockade much more than that low dose or that 100 mics group. However, I do have colleagues here that I work with that use a routine dose of 100 mics and they have a lot of great success with that. It's more so in like nuraxial for epidural use, not so much for intrathecal use if I'm remembering correctly.