[swimangel72]

My last Herceptin treatment (or two) caused me extreme fatigue.......and shortness of breath. I was convinced it was the Herceptin, but my onc thought I just had a cold and gave me antibiotics. Fortunately for me, the insurance company refused to pay for the last treatment so my onc said I could be finished - which was great so I didn't even bother fighting with the insurance company. My onc has me scheduled now for a final muga scan (I'm already feeling better - a month since my last Herceptin) and also a cat scan of my lungs since Herceptin can also cause lung problems. I was getting treated every two weeks - and although it was a bit of a drag ( especially since earlier in the year my port had to be removed) I didn't have any problems with the Herceptin. No pre-meds were necessary at all. I did experience a lot of bone pain but I assumed that was due to the Arimidex.

Anyway - all this to say - I do believe it's possible towards the end of a year or more of treatment with Herceptin that an infusion side effect could happen even if you've never had problems before.........possibly a person's body just plain gets tired of the drug!