Tykerb and weakness/shortness of breath

[Stephanie]

My mother switched from x/h to x/t one week ago. The past couple of days, she's been very weak and short of breath. These two symptoms are listed under "serious side effects" of Tykerb, with the advice of contacting one's doctor immediately. Well, she's the first person at our cancer center to be on Tykerb, so I don't know if they know exactly what to do, frankly.

So, my question is, if one experiences one of the "serious side effects", what do the docs do? Reduce the dosage? Take one off of Tykerb immediately? What's the drill?

Any input is greatly appreciated--thanks.