maybe water but not much food
all pills at once
no ALL pills as in whole bottle, as in all 3 types in one sitting

just the normal dosages

/ Yes, it is very dangerous, and can cause death.

Caffeine and anti-depressants race your heartbeat, and abnormally excite your nervous system. This becomes more dangerous when mixed together.

The anti-depressants lose effectiveness when the caffeine crash occurs, and you become mentally irritant.

VItamins without food can affect certain organs causing them to work harder and straining others.

No medical doctor would ever prescribe such a dangerous combination for these reasons, yet there are many more reasons to stay away from this deadly combination of pills.