Anyway, without telling me, he quit the Vyvanse cold turkey 15 days ago. He is
still going thru withdrawal. Please, can someone help me? How long
will this last? After he first quit taking it, he was angry, suicidal, tired, and was having flu-like symptoms every day. Now, he has "episodes" of feeling this way about twice a day, usually in the middle of the day, and then again at night right before he goes to sleep.