Read Mosby's 2014 Nursing Drug Reference Online
Authors: Linda Skidmore-Roth
Canada only Side effects:
italics
= common;
bold
= life-threatening
Nurse Alert
(full-vess′trant)
Faslodex
Func. class.:
Antineoplastic
Chem. class.:
Estrogen-receptor antagonist
Inhibits cell division by competitive binding to cytoplasmic estrogen receptors, downregulates estrogen receptors
Advanced breast carcinoma in estrogen-receptor–positive patients (usually postmenopausal)
Unlabeled uses:
Loading dose for metastatic breast cancer
Pregnancy (D), breastfeeding, children, hypersensitivity
Precautions:
Hepatic disease, jaundice, thrombocytopenia, biliary tract disease, coagulopathy
• Adult:
IM
500 mg as 2, 5-ml injections on days 1, 15, 29 and monthly thereafter
Available forms:
Inj 50 mg/ml
•
IM 5 ml give one inj in each buttock slowly
•
Antiemetic 30-60 min before product to prevent vomiting prn
CNS:
Headache
, depression, dizziness, insomnia, paresthesia, anxiety
GI:
Nausea, vomiting
, anorexia, constipation, diarrhea, abdominal pain,
hepatitis, hepatic failure, hyperbilirubinemia
HEMA:
Anemia
INTEG:
Rash
, sweating,
hot flashes
, inj site pain
MS:
Bone pain, arthritis, back pain
RESP:
Pharyngitis, dyspnea, cough
SYST:
Angioedema
Half-life 40 days, metabolized by CYP3A4, excretion in feces 90%
Increase:
Bleeding—anticoagulants, do not use concurrently
Increase:
LFTs
•
For anticoagulant use
•
For side effects; report to prescriber
•
Liquid diet, if needed, including cola, gelatin; dry toast or crackers may be added if patient is not nauseated or vomiting
•
Store in refrigerator, protect from light
•
Therapeutic response: decreased tumor size, spread of malignancy
•
To report any complaints, side effects to prescriber
•
To report vaginal bleeding immediately
•
That tumor flare (increase in size of tumor, increased bone pain) may occur, will subside rapidly; that analgesics may be taken for pain
•
That premenopausal women must use mechanical birth control because ovulation may be induced; not to breastfeed
•
To use contraception to prevent pregnancy; pregnancy category (D)
Canada only Side effects:
italics
= common;
bold
= life-threatening
Nurse Alert
(fur-oh′se-mide)
Lasix
Func. class.:
Loop diuretic
Chem. class.:
Sulfonamide derivative
Do not confuse:
furosemide
/torsemide
Lasix
/Luvox/Lomotil/Lanoxin
Inhibits reabsorption of sodium and chloride at proximal and distal tubule and in the loop of Henle
Pulmonary edema; edema with CHF, hepatic disease, nephrotic syndrome, ascites, hypertension
Unlabeled uses:
Hypercalcemia with malignancy, hypertensive emergency/urgency, pulmonary edema or prevention of hemodynamic effects associated with blood product transfusion, ascites
Breastfeeding, infants, anuria, hypovolemia, electrolyte depletion
Precautions:
Pregnancy (C), diabetes mellitus, dehydration, severe renal disease, cirrhosis, ascites, hypersensitivity to sulfonamides/thiazides
• Adult:
PO
20-80 mg/day in
AM
; may give another dose after 6 hr up to 600 mg/day;
IM/IV
20-40 mg; increase by 20 mg q2hr until desired response
• Child:
PO/IM/IV
2 mg/kg; may increase by 1-2 mg/kg q6-8hr up to 6 mg/kg
• Adult:
IV
40 mg given over several min, repeated after 1 hr; increase to 80 mg if needed
• Child:
IV/IM
1-2 mg/kg q6-12hr, max 6 mg/kg/dose
• Premature neonate >32 wk postconceptional age:
IV/IM
1-2 mg/kg q12-24hr
• Premature neonate ≤32 wk postconceptional age:
IV/IM
max 1 mg/kg initially
• Adult:
IM/IV
80-100 mg q1-4hr or
PO
120 mg/day or divided bid
• Child:
IM/IV
25-50 mg, repeat q4hr if needed
• Adult:
PO
80 mg/day, increase by 80-120 mg/day to desired response;
IV
100-200 mg, max 600-800 mg
• Adult:
IV
40-80 mg
• Adult:
IV
40 mg injected slowly then 80 mg injected slowly after 2 hr if needed
• Child:
IM/IV
1-2 mg/kg q6-12hr
• Premature neonate >32 wk postconceptional age:
IM/IV
1-2 mg/kg q12-24hr
• Premature neonate ≤32 wk postconceptional age:
IM/IV
Max 1 mg/kg, give no more frequently than q24hr
Available forms:
Tabs 20, 40, 80 mg; oral sol 8 mg/ml, 10 mg/ml; inj 10 mg/ml
•
In
AM
to avoid interference with sleep if using product as diuretic
•
Potassium replacement if potassium <3 mg/dl
•
PO with food if nausea occurs; absorption may be decreased slightly; tabs may be crushed
•
Undiluted; may be given through
Y
-tube or 3-way stopcock; give ≤20 mg/min
•
May be added to NS or D
5
W; if large doses required and given as IV inf, max 4 mg/min; use inf pump
Y-site compatibilities:
Acyclovir, alfentanil, allopurinol, alprostadil, amifostine, amikacin, aminocaproic acid, aminophylline, amphotericin B cholesteryl/lipid complex/liposome, anidulafungin, argatroban, ascorbic acid, atenolol, atropine, azaTHIOprine, aztreonam, bivalirudin, bleomycin, bumetanide, calcium chloride/gluconate, CARBOplatin, cefamandole, ceFAZolin, cefepime, cefme-tazole, cefonicid, cefoperazone, cefotaxime, cefoTEtan, cefOXitin, cefTAZidime, ceftizoxime, ceftobiprole, cefTRIAXone, cefuroxime, cephalothin, cephapirin, chloramphenicol, CISplatin, cladribine, clindamycin, cyanocobalamin, cyclophosphamide, cycloSPORINE, cytarabine, DACTINomycin, DAPTOmycin, dexamethasone, dexmedetomidine, digoxin, DOCEtaxel, doripenem, doxacurium, DOXOrubicin liposome, enalaprilat, ePHEDrine, EPINEPHrine, etoposide, fentaNYL, fludarabine, fluorouracil, folic acid, foscarnet, gallium nitrate, ganciclovir, granisetron, heparin, hydrocortisone, HYDROmorphone, ifosfamide, imipenem-cilastatin, indomethacin, insulin (regular), isosorbide, kanamycin, leucovorin, lidocaine, linezolid, LORazepam, LR, mannitol, mechlorethamine, melphalan, meropenem, methicillin, methotrexate, methylPREDNISolone, metoprolol, metroNIDAZOLE, mezlocillin, micafungin, miconazole, mitoMYcin, moxalactam, multiple vitamin injection, nafcillin, naloxone, nitroprusside, octreotide, oxacillin, oxaliplatin, oxytocin, PACLitaxel, palonosetron, pamidronate, pantoprazole, PEMEtrexed, penicillin G, PENTobarbital, PHENobarbital, phytonadione, piperacillin, piperacillin-tazobactam, potassium chloride, procainamide,
propofol, propranolol, ranitidine, remifentanil, Ringer’s, ritodrine, sargramostim, sodium acetate/bicarbonate, succinylcholine, SUFentanil, temocillin, teniposide, theophylline, thiopental, thiotepa, ticarcillin, ticarcillin-clavulanate, tigecycline, tirofiban, TNA, tobramycin, urokinase, vit B/C, voriconazole, zoledronic acid
CNS:
Headache, fatigue, weakness, vertigo, paresthesias
CV:
Orthostatic hypotension, chest pain, ECG changes,
circulatory collapse
EENT:
Loss of hearing, ear pain, tinnitus, blurred vision
ELECT:
Hypokalemia, hypochloremic alkalosis, hypomagnesemia, hyperuricemia, hypocalcemia, hyponatremia
, metabolic alkalosis
ENDO:
Hyperglycemia
GI:
Nausea
, diarrhea, dry mouth, vomiting, anorexia, cramps, oral, gastric irritations, pancreatitis
GU:
Polyuria
,
renal failure,
glycosuria
HEMA:
Thrombocytopenia, agranulocytosis, leukopenia, neutropenia, anemia
INTEG:
Rash, pruritus
, purpura,
Stevens-Johnson syndrome,
sweating, photosensitivity, urticaria
MS:
Cramps, stiffness
PO:
Onset 1 hr, peak 1-2 hr, duration 6-8 hr, absorbed 70%
IV:
Onset 5 min; peak 1/2 hr; duration 2 hr (metabolized by the liver 30%); excreted in urine, some as unchanged product, and feces; crosses placenta; excreted in breast milk; half-life 1/2-1 hr
Increase:
toxicity—lithium, nondepolarizing skeletal muscle relaxants, digoxin
Increase:
hypotensive action of antihypertensives, nitrates
Increase:
ototoxicity—aminoglycosides, CISplatin, vancomycin
Increase:
effects of anticoagulants, salicylates
Decrease:
furosemide effect—probenecid
Interference:
GTT
Increase:
LDL
•
CHF:
weight, I&O daily to determine fluid loss; effect of product may be decreased if used daily
•
Hypertension:
B/P lying, standing; postural hypotension may occur
•
Metabolic alkalosis: drowsiness, restlessness
•
Hypokalemia:
postural hypotension, malaise, fatigue, tachycardia, leg cramps, weakness
•
Rashes, temp elevation daily
•
Confusion, especially in geriatric patients; take safety precautions if needed
•
Hearing,
including tinnitus and hearing loss, when giving high doses for extended periods
•
Rate, depth, rhythm of respiration, effect of exertion, lung sounds
•
Electrolytes (potassium, sodium, chloride); include BUN, blood glucose, CBC, serum creatinine, blood pH, ABGs, uric acid
•
Glucose in urine if patient diabetic
•
Allergies to sulfonamides, thiazides
•
Increased fluid intake 2-3 L/day unless contraindicated
•
Therapeutic response: improvement in edema of feet, legs, sacral area (CHF); increase urine output, decreased B/P; decreased calcium levels (hypercalcemia)
•
To discuss the need for a high-potassium diet or potassium replacement with prescriber
•
To rise slowly from lying or sitting position because orthostatic hypotension may occur
•
To recognize adverse reactions that may occur: muscle cramps, weakness, nausea, dizziness
•
About the entire treatment regimen, including exercise, diet, stress relief for hypertension
•
To take with food or milk for GI symptoms
•
To use sunscreen or protective clothing to prevent photosensitivity
•
To take early in the day to prevent sleeplessness
•
To avoid OTC medications unless directed by prescriber
Lavage if taken orally; monitor electrolytes; administer dextrose in saline; monitor hydration, CV, renal status