lilley ch 45 and 46 (antineoplastic drugs) Flashcards
lowest level of WBC in the blood following chemotherapy or radiation. Normally occurs 10-28 days after dosing
nadir
contraindications for chemotherapy (5)
- very low WBC (severe neutropenia)
- ongoing infectious process
- severe compromise in hydration and nutrition
- reduced kidney or liver function
- decline in organ function
cell cycle specific antimetabolites work primarily in the ___ phase of the cell cycle when dna synthesis is most active
S phase
cell cycle specific antimetabolite antagonist: inhibits the
conversion of folic acid to folate which is needed
for DNA synthesis
folate antagonist (folic acid)
what kind of antimetabolite antagonist is methotrexate
folate antagonist
cell cycle specific antimetabolite antagonist: purine bases (adenine & guanine) inhibited- inhibits synthesis of DNA & RNA
purine antagonist
cell cycle specific antimetabolite antagonist: Pyramidine bases (cytosine, thyamine, uracil) inhibits synthesis of
DNA & RNA
pyrimidine antagonist
what kind of antimetabolite antagonist is fluorouracil
pyrimidine antagonist
when are antimetabolite drugs used
to treat solid tumors and some hematologic cancers
leukemia
what can methotrexate be used to treat (2)
psoriasis and rheumatoid arthritis
what are some adverse effects of antimetabolites (7)
- hair loss
- N/V
- myelosuppression
- toxicity
- tumor lysis sydnrome
- hand-foot syndrome
- stevens johnson syndrome
accumulation of uric acid in the blood after lysis of tumor cells
tumor lysis syndrome
what medicine is used to treat tumor lysis syndrome
allopurinol (anti-gout med)
Natural products obtained from the periwinkle plant (vinca alkaloids) or the mandrake plant (taxanes)
-Can work in various phases of the cell cycle
mitotic inhibitors
what category of meds are vincristine and vinblastine
mitotic inhibitors