Question

S the bac rises above .06, the drinker may begin to experience a "down" feeling. what is this effect called?

Answer 1

The effect is called BIPHASIC RESPONSE.
When an individual start drinking alcohol and the BAC level is below 0.06 the person will be stimulated and relatively happy, but when the BAC rises above this level, the person will feel down and depressed. The response is called biphasic because the two events[that is, feeling high and feeling down] occur within a time frame period.