Do you find you get very tired when using the fentanyl patch?

I found I was tired often while on the fentanyl patches and frequently took naps. My physician told me it was okay to drive tho through research I found that in my state I could have been charged with driving under the influence. I have a dear friend who can no longer drive while on fentanyl, she even falls asleep while standing at times. If you do have to drive please be aware of what you may face if you are in an accident. While I was on fentanyl I drove and did not realize how much it effected my attention and concentration. Every person is differant and if you really feel unsafe think twice before you risk yourself and others.