Chemotherapy Flashcards
5FU
fluropyrimidine
prodrug, used for T
interferes with FA absorption
SE FA deficiency
Capecitabine
fluropyrimidines
prodrug, used for U
toxic: neutropenia, thrombocytopenia, anemia
SE: bleeding if also no coumadin, hand-foot syndrome, diarrhea
Cytarabine
cytidine analogue
analogue of C
inhibits DNA polymerase
Toxic: cerebellar syndrome, bone suppression, N/V, abd pain, oral ulceration, hepatic dysfunction
Gemcitabine
cytidine analogue
inhibits DNA polymerase and ribonucleotide reductase
Azacytidine, Decitabine
nucleoside analogue
stops progression of myelodysplastic syndrome
reduces transfusion needs
toxic: myelosuppression
Mercaptopurine, Thioguanine
purines
metabolized by TPMT (decrease dose 6-MP)
SE: hepatotoxicity, BM suppression
-If gout txed with allopurinol, reduce merc. dose by 75%
Fludarabine
interferes with DNA polymerase
toxic: myelosuppression, increase infection
Cladribine, Pentostatin
purine nucleoside analogue
clad–> resists deactivation by adenosine deaminase
pent–> inhibits adenosine deaminase; don’t use with fludarabine (toxicity to bone, lung, liver, brain)
SE: myelosuppression, increase risk of infection
Methotrexate, Demetrexed
antifolate
supplement prn with B12 and FA
SE: neutropenia, thrombocytopenia, mucusitis, hepatotoxicity, N/V
RTN with high dose MTX= water, increase pH urine
Vinca alkaloids
mitotic inhibitor–> inhibits microtubule assembly
resistnat cancer develops w/ Pgp
extravasatoin–> apply heat packs
Taxanes
anti-mitotic
interfere with microtubule disassembly (use corticosteroids before use)
SE myelosuppression
*give corticosteroids before using either of the following…
Doxetaxel: increase fluid retention
Paclitaxel: increase neurotoxicity, give anti-histamines before use, don’t give if bilirubin >ULN or SGOT/SGPT 1.5x ULN
Epothilone
used in paclitaxel resistant lines
Ixabepilone used to tx metastatic breast cancer
premedicate with anti-histamines
Estramustine
alkylating agent nor-N2 mustard with estradiol
inhibits microtubule assembly
Camptothecin
inhibit TIase I
toxic: diarrhea (tx with imodium), neutropenia
Etoposide, Teniposide
inhibit TIase II
toxic: myelosuppression, bleeding