chemo drugs Flashcards
alkylating agents
cyclophosphamide (nitrogen mustard), carmustine(nitrosureas), platinum compounds (cisplatin, carboplatin)
antimetabolite drugs
methotrexate( folate analog), fluouracil(pyrimidine analog), mercaptopurine (purine analog)
topoisomerase inhibitor drugs
anthracyclines( doxorubicin, daunorubicin), non-anthrocyclines (bleomycin)
tubulin binding drugs
vinca alkaloids (vincristine, vinblastine, vinorelbine), taxanes (paclitaxel, docetaxel)
signal transduction modifier drugs
antiestrogens(tamoxifen) antiandrogens (flutamide), monoclonal antibodies (gleevac(imantinib), bevaciumab), aromatase inhibitors
most common drugs for extravasation
athracyclines (doxo, dauno), vinca alkaloids, taxanes (both tubulin binding drugs)
carmustine big side effect
pulmonary toxicity
bleomycin big side effects
pulm toxocity, avoid FI02>30%, BMS rare, hypersensitivities with lymphoma patients
alkylating agent MOA
alkyl groups form covalent bonds with nucleotide bases in DNA or rNA–> disrupt DNA synthesis and cell division. platinum agents cross link via different structural elements (platinum atom, 2 amines, 2 Cl’s)
antimetabolite MOA
work in S phase, structural analogs of natural metabolites (nucleic acid synthesis inhibitors), inhibit replication or repair of DNA by direct inhibition of enzymes needed for DNA repair or replication. methotrexate- binds to dihydrofolate reductase preventing FH2 being reduced to FH4, Fluorouracil inhibits DNA synthesis in another spot in metabolic pathway. inhibits thymidylate synthetase
topoisomerase inhibitors MOA
inhibit topoisomerase I and II and intercalation with DNA
topo I- for repairing DNA that has sustained damage
topo II- relaxes DNA supercoil and breaks strand for replication, also important in putting strand back together
-also generation of free radicals (hydroxylones)
tubulin binding drugs MOA
vinca alkyloids- bind to tubulin to block microtubule assemply, prevents polymerization of dimers –>arrests cell-> apoptosis
taxanes- prevent depolymerization of microtubules–> inhibits cell division–> apoptosis
signal transduction modulators MOA
monoclonmal Abs, aromatase inhibitors, antiestrogens, antiandrogens
alkylating agents anesthesia considerations
can cause muscle weakness, watch NMBs, impairs pseudocholinesterase for 2-3 weeks, BMS is the greatest concern with these drugs
platinum compound alkylating agents unique side effect
mag and potassium wasting, nephrotoxicity, decreased GFR