I think you should stop living vicariously though this sad, detriment of society. He asked a question, and this being an information forum, we should answer him to the best of abilities. First off, its great that your asking question rather than just trusting your gut, I know a person that took thyroid medication and now is all kinds of messed up. Google is a great resource but remember don't trust everything you see as some people don't have anything better to do.
Now onto your question, the cyclobenzaprine can be taken for recreational effect, but don't expect anything to astonishing. As well be really carful with it as it isn't a documented drug, and its actual effects are not well known. Also consider that overdose can result in arrhythmia, ataxia, and muscle breakdown.
As for the hyroxyz, or I am assuming hydroxyzine it is a anxiolytic but even though it has sedative or tranquilizer effects it has an almost zero abuse potential. I don't think using it will hurt you, but don't over do it as well make sure its the right stuff. If you are an anxious person, maybe taking one will calm you down.
Be safe and responsible, remember you only have one body.
Peace