It's most definitely safe but why would you want to do that? If I'm going to do an opiate on a certain day I try to abstain from any caffeine at all that day. Caffeine will just dilute the pleasurable effects.
I wasn't sure if it would inhance the feeling.. And I didn't know it took the feeling away. Ya learn something new each day. Hehe.. Thanks.
Caffeine doesn't block the action of opiates, but it may distract somewhat from the feeling. Unless one is adding caffeine for some other reason (e.g. vaso effects) it is best to take as much caffeine (or less) as any other day.
Yes that's what I meant. I know it doesn't actually inhibit the opiate in any way but I refrain form any stimulant when I do opiates for best results.