Administration Every 3 Weeks Instead of Weekly for First 18 Weeks

[Lucy]

I agree with Becky that it should be okay but that you should discuss your concerns with your doctor for your own peace of mind.

It's worth noting that the dosage is based on the frequency given, meaning that you should get a stronger dose if you're only getting it once every three weeks. Is three weeks the schedule for your other drugs? If so, that may be why getting herceptin every three weeks was set up - more of a convenience for the patient. That would be my guess anyway.