Yeah go ahead... i toke then drink red bull all the time.. it's fun. Well, don't do it too close together, the caffeine will counter act the THC and make u less high, wait till your coming down.
I'm not sure if it's technically considered "safe", but we smoke and drink a few sparks (alcohol plus energy) drinks...we seem just fine 😀
Beleive it or not that out of those two the one that does the most damage to your body isn`t the weed.
However, its your body you do what you want.