You'd be out of luck there, as the govt paperwork required for managing the lot#'s is outrageous. Besides, you are going to be gone how long?
Here's my suggestion; take your cruise documents to your prescribing doctor, and most likely he/she will Rx you enough for the duration of your cruise. I'd also carry a copy of the doctors business card and a the prescription.
Finally, conratulations on getting help, and I wish you a life free of drugs.
do exactly as Lee suggested, take your cruise documents to your doctor, have him/her give you enough doses to last the duration of your cruise. Pack meds in your carry-on. Have a copy of the prescription and a note from your doctor with you just in case customs decides to search your bag.