Combinations - Ephedrine + hydrocodone?

[Nahbus]

So here's the deal:
SWIM just pulled an all nighter from a damn ENERGY drink he drank at like 9:30pm. He also took about 1.5grams of valerian, didn't make him tired.
Anyway, he has to work and plans on taking ephedrine for work, but was wondering if it's a big deal to add hydrocodone to the mix (for something to cheer him up at work... and for him to 'come down' and take a nap afterwards so he is all set and ready to watch that movie with his girl he made plans with)
Slight dilemma.
I'm sure it isn't life threatening, but SWIM is always cautious about combining things with opiates... and stimulants. well.. anything.
Gah, SWIMs brain is all jumbled. I'm just gonna end the post here. Thanks.