There is a difference from being addicted to a substance/medication and being physically dependent on a substance/ medication. There is an endless list of medications that your body becomes physically dependent to and therefore when it is time to eliminate that medication you must slowly taper yourself off of the medicine until you are completely off the medication. The same is true for Suboxone.
To start- someone was truly a herion addict when prescribed Suboxone then the medicine does not get them high. If the person was not a heroin addict then that person could get high. For this reply I am going to assume that the person was a proper canidate for Suboxone and was taking it properly, under a doctor's care, attending regular substance abuse sessions, and following a recovery plan that he or she put into place. When the person wants to come off of Suboxone a taper will be put into place and therefore the withdrawal symptoms will be minimal. Many will claim that this is not the case, but a very very VERY slow taper over months down to the smallest amount possible in the end will make it go smooth and painless. Going to counseling, working out, eating well, and filling your life with positive people and activities that you enjoy will also put you in a better mind set and will make the taper not uncomfortable at all.
When it comes to addiction the smallest discomfort becomes a huge thing. Every season we get colds, fevers, head aches, the flu, etc. and we deal with it and that is that. Why should this situation be any different? If you do not feel well at any point then treat it as you would treat any other type of ailment.
Suboxone is not for everyone, that is okay. Methadone is not for everyone, that is okay. Cold turkey is not for everyone, that is okay. Recovery is not one size fits all. All you can do is thoroughly do your research, be diligent, weigh the pros and cons, and make the decision that is right for YOU.