plankton may I ask,
what dose of IT Hydromorphone have you been using? And how does that compare to your previous IT morphine doses?
In my institution we typically use 150 ug of morphine IT for C sections. From the brief literature search I've done, I've seen conversion of 1:3 to 1:5 IT morphine:HM. So I've been using 30-50ug of HM IT the few times I've used it.
Would appreciate your experience and impression in the matter....