Clonidine is extremely helpful and it's really nothing to be scared of like some are suggesting. If you're really concerned, buy a good arm - cuff blood pressure monitor (NOT A WRIST MODEL) and check your BP if you think it might be low. Even when i feel the most faint and weak, my BP doesn't go much lower than 115/75... the adrenergic rebound during withdrawals will offset it.
And I know people were referring to using clonidine WITH Oxy, but so am I, really- it's still worth trying out even if it just helps you taper. If you can monitor your blood pressure, then by taking no more than 0.1-.15mg at a time (maybe double that just to start you off), and waiting at least an hour before deciding that you can use more, you can use it safely. I've read that for short-term detox, daily doses up to 1mg may be used, but even jumping off a 100mg/day Dilaudid habit (average, some days close to 400mg), I never found the need to take that much... normally the recommended daily limit is 0.6mg and that's pretty much as much as I've felt I needed on even the worst days.
But another poster was right... having access to the stuff can be a bad thing because it works so well that your aversion to withdrawal starts to stop outweighing your desire to get fucked up, which not only makes it easier to justify relapsing, but also makes it easy to justify being reckless with your supply and not pacing yourself properly... I went from a stable 3 years without putting myself in a position to withdraw, to being in withdrawals for about half a week, every week... despite having the same supply I'd always had. So it can be a bit of a double - edged sword... I'd still recommend it to anyone facing withdrawals, but I'd also urge a degree of discipline and self-control... Which I know are completely foreign concepts to most of us...