Which of the following is NOT included in chemotherapy premedication?

The correct choice indicates that pain relievers are typically not included in the standard regimen for chemotherapy premedication. Chemotherapy premedication primarily aims to prevent or mitigate the acute adverse effects that patients may experience during treatment.

Antihistamines are often used to prevent allergic reactions that can occur with certain chemotherapeutic agents. Steroids are included for their anti-inflammatory properties, which can help in reducing the risk of allergic reactions and can also serve to alleviate side effects such as nausea. Anti-nausea medications, or antiemetics, are vital in premedication regimens as they target nausea and vomiting, which are common side effects of chemotherapy.

While pain management is important for patients undergoing chemotherapy, pain relievers are not generally categorized as premedication for chemotherapy factors. Instead, they would typically be addressed separately based on the patient's overall pain management needs. Thus, the inclusion of pain relievers in chemotherapy premedication is less common compared to the other mentioned options, which directly align with the goals of premedication strategies used in oncology.