Morphine SR+Percocet10mg - First time - Feelin strange

[Saraven]

I recently had surgery and was given percocet 10mg for pain. I have a script for Valium 20mg, and I "came across" some purple NAPP morphine slow release.

Around 10am, I took the Perc and Valium. Perc has me feeling nice and happy and pain free.

Around 1:30pm I decide to try the morphine pill. An hour later I'm so groggy I don't even want to get up from the computer chair. I'm thinking perhaps perc+morphine wasn't a good idea. I like the feeling, but I want to be able to take my evening perc, as it helps me sleep.

With the 12 hour slow release morphine in me, can I still take the 10mg perc safely around 7pm tonight?

 

[bollox]

I used to be prescribed MSContin and percocet. The oxycodone would have me feeling nice and happy and pain free, and the morphine would have me feeling groggily glued to the nearest piece of furniture. I feel like that's just how these two substances tend to work!

What is the dosage on the morphine SR? Noticeable effects of MSContin tended to last from 6-8 hours (defo not 12) or so for me. I'd imagine redosing later would be fine.