Mosby's 2014 Nursing Drug Reference (439 page)

BOOK: Mosby's 2014 Nursing Drug Reference
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Canada only   Side effects:
italics
= common;
bold
= life-threatening   
Nurse Alert

vismodegib

(vis′moe-deg′ib)

Erivedge

Func. class.:
Antineoplastic biologic response modifier

Chem. class.:
Signal transduction inhibitor (STI)

ACTION:

A hedgehog (Hh) signaling pathway inhibitor

USES:

Patients who have metastatic basal cell carcinoma, locally advanced, that has recurred after surgery and who are not candidates for surgery/radiation

CONTRAINDICATIONS:

Hypersensitivity, breastfeeding

 

Black Box Warning:

Intrauterine fetal death, male-mediated teratogenicity, Pregnancy (D)

Precautions:
Children, blood donation

DOSAGE AND ROUTES
Calculator

• Adult:
PO
150 mg/day

Available forms:
Cap 150 mg

Administer:

• 
Give without regard to food

• 
Swallow whole, do not open or crush caps

• 
If a dose is missed, do not take additional dose, take at usual time

• 
Store at 77°F (25°C)

SIDE EFFECTS

GI:
Nausea, vomiting, dysgeusia

GU:
Amenorrhea, azotemia

INTEG:
Alopecia

META:
Hyponatremia

MISC:
Fatigue, decreased weight

MS:
Arthralgia

PHARMACOKINETICS

Protein binding >99%, elimination half-life 4 days

INTERACTIONS

Increase:
effect of each product—Pgp inhibitors (amiodarone, clarithromycin, cycloSPORINE, diltiazem, erythromycin, indinavir, itraconazole, ketoconazole, nelfinavir, niCARdipine, propafenone, quiNIDine, ritonavir, saquinavir, tacrolimus, tamoxifen, verapamil); CYP2C19 substrates (amitriptyline, clomiPRAMINE, imipramine, citalopram, diazepam, phenytoin, PHENobarbital, lansoprazole, omeprazole, pantoprazole, RABEprazole, esomeprazole, clopidogrel, proguanil, propranolol, carisoprodol, chloramphenicol, cyclophosphamide, indomethacin, nelfinavir, nilutamide, progesterone, teniposide, warfarin)

NURSING CONSIDERATIONS
Assess:

 

Black Box Warning:

Pregnancy D: Verify pregnancy status of all women within 7 days before starting therapy; effective contraception is needed during and for 7 mo after treatment; men receiving this product should use condoms with spermicide (even after vasectomy) during sexual intercourse with female partners and for 2 mo after the last dose; report exposure during pregnancy to the Genentech Adverse Event Line

Evaluate:

• 
Therapeutic response: decreased spread of tumor

Teach patient/family:

 

Black Box Warning:

Pregnancy D: Teach patient to notify their provider immediately if pregnancy is suspected (or in a female partner for male patients); effective contraception is needed during and for 7 mo after treatment; men receiving this product should use condoms with spermicide (even after vasectomy) during sexual intercourse with female partners and for 2 mo after the last dose; if product is used during pregnancy or if the patient becomes pregnant during use, the woman (or female partner for male patients) should be apprised of the potential hazard to the fetus; encourage exposed women (either directly or through seminal fluid) to participate in the ERIVEDGE pregnancy pharmacovigilance program

• 
About reason for treatment, expected results

Canada only   Side effects:
italics
= common;
bold
= life-threatening   
Nurse Alert

ziv-aflibercept

(ziv-a-flih′ber-sept)

Zaltrap

Func. class.:
Antineoplastic biologic response modifier

Chem. class.:
Signal transduction inhibitor (STI)

ACTION:

An angiogenesis inhibitor, a fusion protein that binds to vascular endothelial growth factors (VEGF-A, VEGF-B) and placental growth factor 1 and 2

USES:

Metastatic colorectal cancer that is resistant or has progressed after an Oxaliplatin-containing regimen in combination with 5-fluorouracil, leucovorin, irinotecan (FOLFIRI)

CONTRAINDICATIONS:

Hypersensitivity

Precautions:
infertility, male-mediated teratogenicity, encephalopathy, hypertension, dental work, breastfeeding, children, neonates, geriatric patients, infection, neutropenia, pregnancy C

 

Black Box Warning:

Bleeding, GI bleeding/perforation, intracranial bleeding, surgery

DOSAGE AND ROUTES
Calculator

• Adult:
IV
4 mg/kg over 1 hr on day 1 every 2 wk in combination with the FOLFIRI regimen (irinotecan 180 mg/m
2
over 90 min on day 1 with dl-racemic leucovorin 400 mg/m
2
over 2 hr) (infused at the same time, in same Y-line; then on day 1 by 5-fluorouracil 400 mg/m
2
as a bolus, then 2400 mg/m
2
as a 46-hr cont IV inf)

Available forms:
Solution for injection 100 mg/4 ml; 200 mg/8 ml

Administer:

• 
Give before FOLFIRI chemotherapy; visually inspect for particulate matter and discoloration before use

Dilution and preparation

• 
Withdraw the calculated dose, add to 0.9% sodium chloride or dextrose 5% solution to 0.6–8 mg/mL; use polyvinyl chloride (PVC) infusion bags containing bis (2-ethylhexyl) phthalate (DHEP) or polyolefin infusion bags; do not re-enter the vial after first puncture; discard any unused portion; do not mix or combine with other drugs in the same infusion bag; the diluted solution may be stored refrigerated for ≤4 hr; discard any unused portion in the infusion bag

IV infusion

• 
Give diluted solution over 1 hr using a 0.2 micron polyethersulfone filter; do not use nylon or polyvinylidene fluoride (PVDF) filters; do not give IV push or bolus; do not mix or combine with other drugs in the same IV line; give using an infusion set made of one of the following: PVC containing DEHP, DEHP-free PVC containing trioctyl-trimellitate (TOTM), polypropylene, polyethylene-lined PVC, or polyurethane

Dosage adjustments for recurrent or severe hypertension

 
Hold until B/P is controlled and then permanently reduce dose to 2 mg/kg; discontinue in hypertensive crisis or hypertensive encephalopathy

Dosage adjustments for proteinuria (2 g/24 hr)

 
Hold until proteinuria is <2 g/24 hr; if proteinuria recurs, hold therapy until proteinuria is <2 g/24 hr, then reduce to 2 mg/kg; discontinue in nephrotic syndrome or thrombotic microangiopathy

SIDE EFFECTS

CNS:
Intracranial bleeding,
headache, dizziness

CV:
Hypertensive crisis,
hypertension,
stroke

GI:
Nausea,
hepatotoxicity,
dyspepsia,
GI hemorrhage,
abdominal pain,
GI perforation

GU:
Proteinuria, hematuria

HEMA:
Neutropenia, leukopenia

INTEG:
Rash, pruritus, alopecia, hypersensitivity

MISC:
Fatigue, epistaxis, night sweats, decreased weight, flulike symptoms, infection

RESP:
Dyspnea,
pulmonary embolism

PHARMACOKINETICS

Elimination half-life 6 days

NURSING CONSIDERATIONS
Assess:

 
Severe bleeding:
GI bleeding, intracranial bleeding, and pulmonary hemorrhage/hemoptysis may be fatal; monitor patients for signs and symptoms of bleeding

 
GI perforation:
some cases are fatal; monitor patients for signs and symptoms of GI perforation; discontinue therapy if GI perforation develops

• 
Poor wound healing
: hold ≥4 wk before elective surgery; after major surgery, do not restart for ≥4 wk and until the surgical wound is entirely healed

 
Severe hypertension/hypertensive crisis:
usually occurs within the first 2 cycles (grade 3 or 4 hypertension); monitor B/P every 2 wk or more often if needed; treatment with antihypertensives may be needed; product may need to be discontinued

 
Severe proteinuria/nephrotic syndrome/thrombotic microangiopathy (TMA):
monitor urine protein by dipstick analysis and urinary protein–to–creatinine ratio (UPCR); obtain a 24-hr urine collection for a UPCR >1; for proteinuria of 2 g/24 hr, temporarily hold doses until proteinuria is <2 g/24 hr; if proteinuria recurs, hold doses until proteinuria is <2 g/24 hr, then permanently reduce; discontinue in nephrotic syndrome or TMA

 
Febrile neutropenia, neutropenic infection/sepsis:
monitor CBC with differential at baseline and before each cycle, hold FOLFIRI until the neutrophil count is ≥1.5 × 10
9
/L

 
Geriatric toxicity:
assess for diarrhea, dizziness, asthenia, weight loss, and dehydration that can indicate toxicity

 
Pregnancy C/Breastfeeding:
highly effective contraception during and up to 3 mo after the last dose is needed for all patients of reproductive potential because infertility and male-mediated teratogenicity can occur; infertility can occur but is reversible within 18 wk after stopping product: do not breastfeed

Evaluate:

• 
Therapeutic response: decrease in spread of size of tumor

Teach patient/family:
Pregnancy c/breastfeeding:

 
That highly effective contraception should be used during and up to 3 mo after the last dose in all patients of reproductive potential, infertility and male-mediated teratogenicity can occur; infertility is reversible within 18 wk after stopping product; do not breastfeed

• 
About reason for treatment, expected results

 
Notify prescriber immediately of bleeding, severe abdominal pain, poor wound healing

Canada only   Side effects:
italics
= common;
bold
= life-threatening   
Nurse Alert

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