Chemotherapy is a word used to describe a variety of drugs which can inhibit or kill cancer cells.
When given either intravenously or, in some cases, orally, they will travel through the bloodstream to almost all parts of the body and therefore are used to destroy cancer cells throughout the body. Thus, chemotherapy is referred to as systemic therapy. But the anticipation is often worse than the reality. Today there is much less cause to be anxious about chemotherapy treatments than there was even as recently as a few years ago. Tremendous progress has been made.