Hi @RubyRumble, I am an Oncology nurse so I can help you here. Cycles and Rounds are interchangable. Most chemotherapy regimes are broken down in cycles and days. Paclitaxol for instance is given every week but the first 3 weeks are generally included in cycle 1. for e.g.:
Cycle 1 you will recieve your infusion on Day1, Day 8 and Day 15, the cycle ends on Day 21 and it all starts again. there is normally 4 cycles of paclitaxel. hope this helps, Brenda