To clarify, you're going through this process for the purpose of inducting onto Buprenorphine maintenance? At any rate, if you only have to make it one day with that arsenal at your disposal than I'd say you have nothing to worry about. Be very wary of combining substances like Benzodiazepines, Opioids, Z-Drugs and non-Barbiturates like Carisoprodol (Soma). Don't let the name "non-barbiturate" confuse you. The classification essentially means: is like a barbiturate in every meaningful, clinical way, but is not by strict definition a derivative of Barbituric Acid.
Carisoprodol is actually a pro-drug for the systemic delivery of a substance called Meprobamate (Miltown). Meprobamate was a real panacea going back a few decades. It was seen as less potent, toxic and less likely to produce abuse/dependence issues as with the - at that time - more and more demonized Barbiturates. Meprobamate itself was, in reality, little safer and none less addictive than the sedatives that it had been intended to replace.
Like the slightly more notorious Methaqualone (Quaalude), the drug was originally sold on the premise that it was safer and less addictive than the Barbiturates. Of course, this all turned out to be lies and combined with the relatively cavalier attitudes of the time in terms of their prescription, led many unsuspecting patients down a path of misery and death. They appear to have been phasing out the drug over the past few years, as I see fewer and fewer folks with prescriptions who now receive drugs like Cyclobenzaprine (Flexeril) instead.
Your idea of a cold turkey withdrawal is one day of pain before picking up? Cold turkey is 4 days of hell, weeks of apathy, depression and cravings so pornographically intense they make you doubt your sanity. After the few weeks, you begin restoring normal bodily function in its entirety. This means eating, sleeping and just being able to function as a human being on a basic level. Having a conversation about the weather with strangers can seem like a form of slow torture when you're that down. But, things do begin to improve and you have to find a way to use each small step forward as motivation for the next day.
You're coming off 60mg Oxycodone per day? I'm not remotely belittling your situation, but you should not be preparing for war, as it were. My estimate for the severity of your symptoms, and please bear in mind, it's an estimate, is that you will experience loss of appetite, excessive perspiration, yawing/watery eyes, irritability, depression and probably some mild Restless Legs Syndrome/Akathisia, but the entirety of the sydrome should be highly manageable and depending on your fortitude, you shouldn't even need to take any time off from work.
Still, I'd like to know what your ultimate goal is. To be totally frank, the large cocktail of drugs you intend to take; sedatives, hypnotics, Gabapentinoids, partial-agonist Opioids and to a lesser, yet still significant extent, Clonodine is probably every bit as, but in all likelihood due to synergy, moreso unhealthy and potentially deadly that just the Oxycodone. It's of course, your body, but you simply don't need all of this medication and the potential loss of control can easily derail your progress.
You should be able to get by easy-peasy with simply Gabapentin (Neurontin), taken staggered throughout morning and with high fat meals has for myself and many of my esteemed colleagues eliminated 90% - 100% of Restless Legs Syndrome/Akathisia symptoms, which are for many, the most unforgiving features of withdrawal. Clonidine (Catapres) will reduce your blood pressure and can help reduce that intense feeling of inner restlessness and annoying heart palpitations. Also great for inducing and/or maintaining sleep.
Cannabis. This will depend heavily on how your moods tend to progress. Some experience withdrawal as being predominantly physical, like the flu. For others, like myself, the breakdown of emotional stability, intense depression and anxiety are by far the worst part, with the physical symptoms existing somewhere in the periphery. I see that you're in Colorado, so this part should be fairly easy. If you are feeling overly anxious, paranoid, thoughts racing etc. than you should definitely go for a heavy indica. The budtenders I'm sure will explain it better than I ever could, so ask them! Your goal should be to experience the primary medicinal qualities of the plant like anti-nausea, appetite stimulation, stress/anxiety relief, hypnosis and so on.
If you can take advantage of Cannabis' profound ability to stimulate appetite, it can make the difference between eating nothing, getting worse, then feeling worse, not being able to hold down enough liquids and having a chance each day to do those things. My main point, I guess, is that you don't have to be one of those "professional stoners" and get really intoxicated to experience a lot of the potentially life-saving benefits of this plant.
