Problem
Scott, a 65-year-old retired bus driver, has started outpatient chemotherapy for a recent diagnosis of lung cancer. He has recovered well from a right lung lobectomy, and his is now physically and emotionally ready for a 3-month regimen of chemotherapy. The premedication consists of a variety of drugs, including a prescription for oral ondansetron (Zofran) for use at home.
After 2 weeks of therapy, the oncologist discontinues the ondansetron because Scott complains that it does nothing to help his nausea and vomiting. A friend suggests the use of marijuana but Scott expresses concerns about this strategy.
Discuss the use of ondansetron in this case. How will you explain to Scott about marijuana use for oncology patients?