Dear Ziad,
You know I think you are right about waiting with Vidaza when your father hardly has any neutrophils at all. As you have seen before they recommend that Vidaza should not be given if the neutrophils not have increased:
"If a >25% increase above the nadir (lowesr value) is not seen by day 28, counts should be reassessed every 7 days."http://www.vidaza.com/pdf/PI_FINAL.pdf
There are patients that have responded after 3 cycles of Vidaza but most clinics try 6 cycles before they decide that the drug isn't working. a little more than 50% of the patients respond.
Kind regards
Birgitta-A