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Chemotherapy can be administered as a pill or through an intra-venous drip.
The drugs move throughout the body in the bloodstream.
The procedure is recommended for breast cancer in order to shrink the tumors and prevent further spread of the cancer to different parts of the body.
The process shrinks tumors and allows some tumors to spread into the blood system, become resistant to chemotherapy and spread to other organs in the body.
Stage 4 cancer is very difficult to treat because the cancer would have spread to other organs and be more aggressive and resistant to treatment. Additional therapy may be added to chemotherapy to prevent the spread of tumour.
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