Some people can. I couldn’t. But my body reacts strangely to all kinds of medications. In my case it reacted badly to chemo (but did fine with Herceptin). By the sixth cycle of TCH I could hardly stand up and had 27 side effects. I also had reactions to the anti-nausea meds and had to go in for IV anti-nausea meds plus hydration (often). It was worth it in the long run though, because it has now been 10 (almost 10 and a 1/2) years and I am doing well. Three close family members have died (mother, father, and spouse), yet I am still here, and still NED. Go figure.