how many months is herceptin good for

[MCS]

If you have been taken off herceptin because you received it as adjuvant therapy, how long does it stay in your system to protect you. I only had the standard 1 year treatment

I mean what risks do I run now? just sit around till something shows up and we take care of it?

I think I have asked this question before but is there such a thing as a maintenance dosage every once in a while. Till we have a vaccine, isn't this a recourse.

What has been your experience?

thank you

maria