Hi [...],
I was on 1.5mg and I did it all at once. I didn't have any adverse reactions. In fact, I remember feeling like it helped right away. But like [...] said, we're all different. As you know Ativan has a short half-life so like you said, there's a good chance your friend is experiencing interdose withdrawal. If it were me, I might try taking, say, .5mg out of the 2mg night dose & take that .5mg in the morning to see if it would help the symptoms.
I hope this is helpful,
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