Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
Renal toxicity can occur after first dose. Have decreased GFRs, electrolyte losses (espec Mag and K)--will see lots of NaCl fluid & diuresis to help.
Peripheral neuropath reversible > 1 yr. |
Platinating Agents
|
|
The most severe emotogenic class--60% will have delayed 2-4 day N/V -- will impact fluid and nutrition status.
|
Cisplatin (Platinating agents)
|
|
As a class, disrupts the metabolic workings of cancer cells (resemble nuclear structural components or inhibit enzymes involved in synthesis of DNA/proteins.)
|
Antimetabolites
(book also calls Nucleic acid synthesis inhibitors) |
|
Antimetabolite that is given with reduced folate leucovorin to increase stability and cytotoxicity. Blocks production of thymine nucleotides.
|
Fluorouracil (5-FU)
|
|
Antimetabolite that is prodrug of 5-FU.
|
Capecitabine
|
|
Toxicities of 2 drugs: Mucositis/diarrhea which is life threatening, especially in older women. Also myelosupression.
|
Antimetabolites:
Florouracil (5-FU) and Cepecitabine |
|
With increased age & high dose you see higher prevalence of renal/hepatic toxicity plus neurotoxicity (is VERY toxic). Also very strong myelosuppression.
|
Antimetabolite:
Cytarabine 2 other that have similar actions, but are less toxic: Gemcitabine, Azacytidine, and Decitabine. |
|
Depends on xanthine oxidase for initial oxidation steop. If given with Allopurinol (xanthene oxidase inhibitor) reduce dose or serious toxicity will ensue. Also causes myelosuppression, leukemia and sometimes Chron's disease.
|
Purine Antimetabolites:
6-Mercaptopurine & 6-Thioguanine |
|
Side effects:
Myelosuppression to the point of giving prophylactic antibiotics and antivirals until CD4 counts normalize; 15% will see neurotoxicity, mostly somnolence, neuropathy, visual disturbances. |
Purine Antimetabolites:
Fludarabine, Cladribine, and Pentostatin |
|
These drugs block Dihydrofolate Reductase (DHFR) depleating reduced folates so thymidylate and purine synthesis is stopped, thus DNA synthesis is stopped.
|
Antifolates
|
|
Drug used for >50 years. Possible that malignant cells may have higher amounts of MTX polyglutamated cells which is possibly why MTX has selective effects on malignant vs normal cells.
May require leucovorin "rescue". |
Antifolate:
Methotrexate |
|
A "multi-targeted" antifolate that inhibits 3 pathways.
Severe hematologic toxicity with netropenic sepsis and death reported. FDA requires co-administration of folic acid and vit B12 with this drug to lower mortality rates. |
Antifolate:
Pemetrexed |
|
Essential for maintaining DNA structure during replication/transcription. They unwind DNA and break a segment; instead of breaking entire molecule, allow replication, then reseal.
|
Topoisomerase Inhibitors (TI)
|
|
Topoisomerase Inhibitors that are generally well tolerated; myelosuppresion and mucositis at high doses.
|
Etoposide (VP-16)
Teniposide |
|
Topoisomerase Inhibitors
Myelosuppression. 20% incidence grade 4 diarrhea with one. Some low grade fever, mucositis, mild LFT bumps seen. |
Irinotecan
Topotecan |
|
Topoisomerase Inhibitors:
Poison Topo, but also form hydroxy radicals that cleave DNA-effective, but toxic! Moderate to severe N/V, alopecia & mucositis. Dose limiting myelosuppression. Most famous for cardiotoxicity. Heart has few mech to ward of oxidative radical damage. Acute, chronic, and late onset cardiac damage (up to 20 yrs later). ST-T wave changes, sinus tachy, PVCs. |
Doxorubicin
Daunorubicin Idarubicin Epirubicin (Anthracene derivitaves) |
|
Topoisomerase Inhibitor
Formulated for reduced toxicities across the board; less radical oxidation. Intense blue color of drug discolors urine and can tint sclera and skin. |
Mitoxantrone
|