Mosby's 2014 Nursing Drug Reference (84 page)

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

cefaclor

See
cephalosporins—2nd generation

cefadroxil
cefdinir
cefditoren pivoxil
cefepime
cefixime
cefoTEtan
cefTAZidime
ceftibuten
ceftizoxime

 

ceftaroline (Rx)

(sef-tar′oh-leen)

Teflaro

Func. class.:
Cephalosporin action: Inhibits cell wall synthesis through binding to essential penicillin-binding protein (PBPs)

USES:

Acute bacterial skin/skin structure infections (ABSSI), bacterial community-acquired pneumonia

CONTRAINDICATIONS:

Cephalosporin hypersensitivity

Precautions:
Child/infant/neonate, breastfeeding, elderly patients, antimicrobial resistance, carbapenem/penicillin hypersensitivity, coagulopathy, colitis, dialysis, diarrhea, GI disease, hypoprothrombinemia, IBS, pregnancy (B), pseudomembranous colitis, renal disease, ulcerative colitis, viral infection, vit K deficiency

DOSAGE AND ROUTES
Calculator

• Adult:
IV
600 mg q12hr × 5-14 days (skin/skin-structure infections) or × 5-7 days (bacterial community-acquired pneumonia)

Renal dose

• Adult:
IV
CCr >30-≤50 ml/min, 400 mg q12hr; CCr ≥15-≤30 ml/min, 300 mg q12hr, CCr ≤15 ml/min, 200 mg q12hr

Available forms:
Powder for inj 400 mg, 600 mg

Administer:

• 
Obtain C&S before use

Intermittent IV INF route

• 
Visually inspect for particulate matter, discoloration if sol or container permits

• 
Reconstitute:
add 20 ml of sterile water to 400- or 600-mg vial (20 ml/ml for 400 mg; 30 mg/ml for 600 mg), mix gently until dissolved;
dilute
in 250 ml of 0.9% NaCl, 0.45% NaCl, LR, D
5
, D2.5,
give
over 1 hr, do not admix, use within 6 hr at room temp or 24 hr refrigerated

SIDE EFFECTS

CV:
Phlebitis

ENDO:
Hypokalemia

GI:
Diarrhea, nausea, vomiting, constipation, abdominal pain,
pseudomembranous colitis (rare)

INTEG:
Rash,
anaphylaxis

PHARMACOKINETICS

Protein binding 20%; excreted in urine 88%, feces 6%; half-life 2.66 hr; not hepatically metabolized

INTERACTIONS

Increase:
prothrombin time risk—anticoagulants

Drug/Lab Test

Increase:
LFTs

Decrease:
potassium, eosinophils

NURSING CONSIDERATIONS
Assess:

• 
Infection:
vital signs, sputum, WBC before, during therapy

• 
Hypersensitivity:
before use, obtain a history of hypersensitivity reactions to cephalosporins, carbapenems, penicillins; cross-sensitivity may occur

• 
Anaphylaxis (rare):
rash, pruritus, laryngeal edema, dyspnea, wheezing; discontinue product, notify health care provider immediately, keep emergency equipment nearby

• 
Pseudomembranous colitis:
diarrhea, abdominal pain, fever, bloody stools; report immediately if these occur; may occur several weeks after terminating therapy

• 
Monitor BUN, creatinine baseline, periodically; elderly and those with renal disease are at greater risk of renal dysfunction

Evaluate:

• 
Therapeutic response: negative C&S, resolution of symptoms of infection

Teach patient/family:

• 
About the reason for treatment and expected result

• 
To immediately report rash, itching, difficulty breathing, bloody diarrhea, fever, abdominal pain

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

HIGH ALERT
celecoxib (Rx)

(sel-eh-cox′ib)

CeleBREX

Func. class.:
Nonsteroidal antiinflammatory, antirheumatic

Chem. class.:
COX-2 inhibitor

Do not confuse:
CeleBREX
/CeleXA/Cerebra/Cerebyx

ACTION:

Inhibits prostaglandin synthesis by selectively inhibiting cyclooxygenase-2 (COX-2), an enzyme needed for biosynthesis

USES:

Acute, chronic rheumatoid arthritis, osteoarthritis, acute pain, primary dysmenorrhea, ankylosing spondylitis, juvenile rheumatoid arthritis (JRA)

Unlabeled uses:
Colorectal adenoma prophylaxis

CONTRAINDICATIONS:

Pregnancy (D) 3rd trimester; hypersensitivity to salicylates, iodides, other NSAIDs, sulfonamides

 

Black Box Warning:

CABG

Precautions:
Pregnancy (C) 1st/2nd trimesters, breastfeeding, children <18 yr, geriatric patients, bleeding, GI/renal/hepatic/cardiac disorders, PVD, hypertension, severe dehydration, asthma

 

Black Box Warning:

GI bleeding/perforation, peptic ulcer disease, MI, stroke

DOSAGE AND ROUTES
Calculator

Do not exceed recommended dose; deaths have occurred

Acute pain/primary dysmenorrhea

• Adult:
PO
400 mg initially, then 200 mg if needed on 1st day, then 200 mg bid prn on subsequent days; start with 1/2 dose for poor CYP2C9 metabolizers

Osteoarthritis

• Adult:
PO
200 mg/day as a single dose or 100 mg bid; start with 1/2 dose for poor CYP2C9 metabolizers

• Geriatric:
PO
use lowest possible dose

Rheumatoid arthritis

• Adult:
PO
100-200 mg bid; start with 1/2 dose for poor CYP2C9 metabolizers

Ankylosing spondylitis

• Adult:
PO
200 mg/day or in divided doses (bid); start with 1/2 dose for poor CYP2C9 metabolizers

Juvenile rheumatoid arthritis (JRA)

• Adolescent and child ≥2 yr (>25 kg):
PO
100 mg bid; start with 1/2 dose for poor CYP2C9 metabolizers

• Child ≥2 yr (10-25 kg):
PO
50 mg bid; start with 1/2 dose for poor CYP2C9 metabolizers

Hepatic disease

• Adult:
PO
(Child-Pugh B) reduce dose by 50%

Colorectal adenoma prophylaxis (unlabeled)

• Adult:
PO
400 mg bid × 6 mo

Available forms:
Caps 50, 100, 200, 400 mg

Administer:

• 
Do not break, crush, chew, or dissolve caps with a full glass of water to enhance absorption; caps may be opened into applesauce or soft food, ingest immediately with water

• 
With food, milk to decrease gastric symptoms (with higher doses [400 mg bid]); do not increase dose

SIDE EFFECTS

CNS:
Fatigue, anxiety, depression, nervousness, paresthesia
, dizziness, insomnia

CV:
Stroke, MI, tachycardia, CHF,
angina, palpitations, dysrhythmias, hypertension, fluid retention

EENT:
Tinnitus, hearing loss, blurred vision, glaucoma, cataract, conjunctivitis, eye pain

GI:
Nausea, anorexia, vomiting, constipation, dry mouth, diverticulitis, gastritis,
gastroenteritis, hemorrhoids, hiatal hernia, stomatitis,
GI bleeding/ulceration

GU:
Nephrotoxicity:
dysuria
,
hematuria, oliguria, azotemia,
cystitis, UTI,
renal papillary necrosis

HEMA:
Blood dyscrasias,
epistaxis, bruising, anemia,
platelet aggregation

INTEG:
Serious (sometimes fatal) Stevens-Johnson syndrome, toxic epidermal necrolysis,
purpura, rash, pruritus, sweating, erythema, petechiae, photosensitivity, alopecia

RESP:
Pharyngitis, SOB, pneumonia, coughing

PHARMACOKINETICS

Well absorbed, crosses placenta, bound to plasma proteins, metabolized by CYP2C9 in liver, very little excreted by kidneys/in feces, peak 3 hr, half-life 11 hr, protein binding ∼97%

INTERACTIONS

Increase:
bleeding risk—anticoagulants, SSRIs, antiplatelets, thrombolytics, salicylates, alcohol

Increase:
adverse reactions—glucocorticoids, NSAIDs, aspirin

Increase:
toxicity—lithium, antineoplastics, bisphosphonates

Increase:
celecoxib blood level—fluconazole

Decrease:
effect of aspirin, ACE inhibitors, thiazide diuretics, furosemide

Drug/Herb

Decrease:
effect of feverfew

Increase:
bleeding risk—garlic, ginger, ginkgo

Drug/Lab Test

Increase:
ALT, AST, BUN, cholesterol, glucose, potassium, sodium

Decrease:
glucose, sodium, WBC, platelets

NURSING CONSIDERATIONS
Assess:

• 
Pain
of rheumatoid arthritis, osteoarthritis; check ROM, inflammation of joints, characteristics of pain

 

Black Box Warning:

For cardiac disease that may be worse after taking product; MI, stroke; do not use with coronary artery bypass graft (CABG)

• 
CBC during therapy; watch for decreasing platelets; if low, therapy may need to be discontinued, restarted after hematologic recovery; LFTs, serum creatinine/BUN, stool guaiac

 

Black Box Warning:

For blood dyscrasias (thrombocytopenia): bruising, fatigue, bleeding, poor healing

• 
GI toxicity:
black, tarry stools; abdominal pain

 
Serious skin disorders:
Stevens-Johnson syndrome, toxic epidermal necrolysis; may be fatal

Evaluate:

• 
Therapeutic response: decreased pain, inflammation in arthritic conditions; decreased number of polyps

Teach patient/family:

 

Black Box Warning:

Not to exceed recommended dose; to notify prescriber immediately of chest pain, skin eruptions; to stop product if these occur

• 
To check with prescriber to determine when product should be discontinued prior to surgery

• 
That product must be continued for prescribed time to be effective; to avoid other NSAIDs, aspirin, sulfonamides

 

Black Box Warning:

To notify prescriber of GI symptoms: black, tarry stools; cramping or rash; edema of extremities; weight gain

 

Black Box Warning:

To report bleeding, bruising, fatigue, malaise because blood abnormalities do occur

• 
To report possible respiratory infection: fever, SOB, coughing, painful swallowing

• 
To report if pregnancy is planned or suspected, pregnancy (C) before 3 wk, (D) after 30 wk

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

 

CEPHALOSPORINS—
1ST GENERATION
cefadroxil (Rx)

(sef-a-drox′ill)

Apo-Cefadroxil

ceFAZolin (Rx)

(sef-a′zoe-lin)

cephalexin (Rx)

(sef-a-lex′in)

Keflex, Panixine

Func. class.:
Antiinfective

Chem. class.:
Cephalosporin (1st generation)

Do not confuse:
cephalexin
/cefaclor

ACTION:

Inhibits bacterial cell wall synthesis; renders cell wall osmotically unstable, leads to cell death; lysis mediated by cell wall autolytic enzymes

USES:

cefadroxil:
Gram-negative bacilli:
Escherichia coli, Proteus mirabilis, Klebsiella
(UTI only); gram-positive organisms:
Streptococcus pneumoniae, Streptococcus pyogenes, Staphylococcus aureus;
upper, lower respiratory tract, urinary tract, skin infections; otitis media; tonsillitis; UTIs

ceFAZolin:
Gram-negative bacilli:
Haemophilus influenzae, Escherichia coli, Proteus mirabilis, Klebsiella;
gram-positive organisms:
Staphylococcus aureus;
upper, lower respiratory tract, urinary tract, skin infections; bone, joint, biliary, genital infections; endocarditis, surgical prophylaxis, septicemia

cephalexin:
Gram-negative bacilli:
Haemophilus influenzae, Escherichia coli, Proteus mirabilis, Klebsiella;
gram-positive organisms:
Streptococcus pneumoniae, Streptococcus pyogenes, Staphylococcus aureus;
upper, lower respiratory tract, urinary tract, skin, bone infections; otitis media

CONTRAINDICATIONS:

Hypersensitivity to cephalosporins, infants <1 mo

Precautions:
Pregnancy (B), breastfeeding, hypersensitivity to penicillins, renal disease

DOSAGE AND ROUTES
Calculator
cefadroxil

• Adult:
PO
1-2 g/day or divided q12hr; loading dose of 1 g initially

• Child:
PO
30 mg/kg/day in divided doses bid, max 2 g/day

Renal dose

• Adult:
PO
CCr 25-50 ml/min, 500 mg q12hr; CCr 10-24 ml/min, 500 mg q24hr; CCr <10 ml/min, 500 mg q36hr

Available forms:
Caps 500 mg; tabs 1 g; oral susp 250, 500 mg/5 ml

cefazolin
Life-threatening infections

• Adult:
IM/IV
1-2 g q6-8hr; max 12 g/day

• Child >1 mo:
IM/IV
75-100 mg/kg in 3-4 divided doses; max 6 g/day

Mild/moderate infections

• Adult:
IM/IV
250 mg-1 g q8hr, max 12 g/day

• Child >1 mo:
IM/IV
25-50 mg/kg in 3-4 equal doses, max 6 g/day, or 2 g as a single dose

Renal dose

• Adult:
IM/IV
after loading dose, CCr 35-54 ml/min, dose q8hr; CCr 10-34 ml/min, 50% of dose q12hr; CCr <10 ml/min, 50% of dose q18-24hr

• Child:
IM/IV
CCr >70 ml/min, no dosage adjustment; CCr 40-70 ml/min after loading dose, reduce dose to 7.5-30 mg/kg q12hr; CCr 20-39 ml/min, give 3.125-12.5 mg/kg after loading dose q12hr; CCr 5-19 ml/min, 2.5-10 mg/kg after loading dose q24hr

Available forms:
Inj 250, 500 mg, 1, 5, 10, 20 g; inf 500 mg, 1 g/50-ml vial

cephalexin
Moderate infections

• Adult:
PO
250-500 mg q6hr, max 4 g/day

• Child:
PO
25-50 mg/kg/day in 4 equal doses, max 4 g/day

Moderate skin infections

• Adult:
PO
500 mg q12hr

Endocarditis prophylaxis

• 
2 g 1 hr before procedure

Severe infections

• Adult:
PO
500 mg-1 g q6hr

• Child:
PO
50-100 mg/kg/day in 4 equal doses, max 4 g/day

Renal dose

• Adult:
PO
CCr 10-40 ml/min, 250-500 mg then 250-500 mg q8-12hr; CCr <10 ml/min, 250-500 mg then 250-500 mg q12-24hr

Available forms:
Caps 250, 500 mg; tabs 250, 500 mg, 1 g; oral susp 125 mg, 250 mg/5 ml

Administer:
cefadroxil

• 
For 10-14 days to ensure organism death, prevent superinfection

• 
With food if needed for GI symptoms

• 
Shake susp, refrigerate, discard after 2 wk

• 
After C&S completed

ceFAZolin
IV route

• 
Check for irritation, extravasation often; dilute in 10 ml sterile water for inj, run over 3-5 min; may be further diluted with 50-100 ml of NS, D
5
W sol, run over 1/2-1 hr by
Y
-tube or 3-way stopcock

• 
For 10-14 days to ensure organism death, prevent superinfection

• 
After C&S completed

Syringe compatibilities:
DimenhyDRINATE, heparin, vit B complex

Y-site compatibilities:
Acyclovir, alfentanil, allopurinol, alprostadil, amifostine, amikacin, aminocaproic acid, aminophylline, amphotericin B liposome, anidulafungin, ascorbic acid injection, atenolol, atracurium, atropine, aztreonam, benztropine, bivalirudin, bleomycin, bumetanide, buprenorphine, butorphanol, calcium gluconate, CARBOplatin, cefamandole, cefmetazole, cefonicid, cefoperazone, cefoTEtan, cefOXitin, cefpirome, cefTAZidime, ceftizoxime, cefTRIAXone, cefuroxime, cephalothin, cephapirin, chloramphenicol, cimetidine, CISplatin, clindamycin, codeine, cyanocobalamin, cyclophosphamide, cycloSPORINE, cytarabine, DACTINomycin, DAPTOmycin, dexamethasone, dexmedetomidine, digoxin, diltiazem, DOCEtaxel, doxacurium, doxapram, DOXOrubicin liposomal, enalaprilat, ePHEDrine, EPINEPHrine, epirubicin, epoetin alfa, eptifibatide, esmolol, etoposide, fenoldopam, fentaNYL, filgrastim, fluconazole, fludarabine, fluorouracil, folic acid (as sodium salt), foscarnet, furosemide, gallium, gatifloxacin, gemcitabine, gentamicin, glycopyrrolate, granisetron, heparin, hydrocortisone, hydrOXYzine, IDArubicin, ifosfamide, imipenem-cilastatin, indomethacin, insulin (regular), irinotecan, isoproterenol, ketorolac, lidocaine, linezolid, LORazepam, LR’s injection, mannitol, mechlorethamine, melphalan, meperidine, metaraminol, methicillin, methotrexate, methoxamine, methyldopate, methylPREDNISolone, metoclopramide, metoprolol, metroNIDAZOLE, mezlocillin, miconazole, midazolam, milrinone, morphine, moxalactam, multiple vitamins injection, nafcillin, nalbuphine, naloxone, nesiritide, niCARdipine, nitroglycerin, nitroprusside, norepinephrine, octreotide, ondansetron, oxacillin, oxaliplatin, oxytocin, PACLitaxel, palonosetron, pamidronate, pancuronium, pantoprazole, penicillin G potassium/sodium, peritoneal dialysis solution, perphenazine, PHENobarbital, phenylephrine, phytonadione, piperacillin, Plasma-Lyte M in dextrose 5%, polymyxin B, potassium chloride, procainamide, propofol, propranolol, ranitidine, remifentanil, Ringer’s injection, ritodrine, riTUXimab, sargramostim, sodium acetate, sodium bicarbonate, succinylcholine, SUFentanil,
tacrolimus, teniposide, tenoxicam, theophylline, thiamine, thiotepa, ticarcillin, ticarcillin-clavulanate, tigecycline, tirofiban, TNA, tolazoline, trastuzumab, trimetaphan, urokinase, vasopressin, vecuronium, verapamil, vinCRIStine, vitamin B complex with C, voriconazole, warfarin

cephalexin

• 
Shake susp, refrigerate, discard after 2 wk

• 
For 10-14 days to ensure organism death, prevent superinfection

• 
With food if needed for GI symptoms

• 
After C&S

SIDE EFFECTS

CNS:
Headache, dizziness, weakness, paresthesia, fever, chills,
seizures
(with high doses)

GI:
Nausea, vomiting,
diarrhea, anorexia
, pain, glossitis, bleeding; increased AST, ALT, bilirubin, LDH, alk phos; abdominal pain,
pseudomembranous colitis

GU:
Proteinuria, vaginitis, pruritus, candidiasis, increased BUN,
nephrotoxicity, renal failure

HEMA:
Leukopenia, thrombocytopenia, agranulocytosis,
anemia,
neutropenia, lymphocytosis, eosinophilia, pancytopenia, hemolytic anemia

INTEG:
Rash, urticaria, dermatitis

RESP:
Dyspnea

SYST:
Anaphylaxis, serum sickness,
superinfection,
Stevens-Johnson syndrome

PHARMACOKINETICS

cefadroxil:
Peak 1-1½ hr, duration 12-24 hr, half-life 1-2 hr, 20% bound by plasma proteins, crosses placenta, excreted in breast milk

cefazolin

IM:
Peak 1/2-2 hr, duration 6-12 hr, half-life 1½-2¼ hr

IM:
Peak 10 min, duration 6-12 hr, eliminated unchanged in urine, 75%-85% protein bound

cephalexin:
Peak 1 hr, duration 6-12 hr, half-life 30-72 min, 5%-15% bound by plasma proteins, 80%-100% eliminated unchanged in urine, crosses placenta, excreted in breast milk

INTERACTIONS

Increase:
prothrombin time—anticoagulants; use cautiously

Increase:
toxicity—aminoglycosides, loop diuretics, probenecid

Drug/Lab Test

Increase:
AST, ALT, alk phos, LDH, BUN, creatinine, bilirubin

False positive:
urinary protein, direct Coombs’ test, urine glucose

Interference:
cross-matching

NURSING CONSIDERATIONS
Assess:

• 
Sensitivity to penicillin and other cephalosporins

 
Nephrotoxicity
: increased BUN, creatinine; urine output: if decreasing, notify prescriber

• 
I&O daily

• 
Blood studies: AST, ALT, CBC, Hct, bilirubin, LDH, alk phos, Coombs’ test monthly if patient is on long-term therapy

• 
Electrolytes: potassium, sodium, chlorine monthly if patient is on long-term therapy

• 
Pseudomembranous colitis:
bowel pattern daily; if severe diarrhea occurs, product should be discontinued

 
Anaphylaxis:
rash, urticaria, pruritus, chills, fever, joint pain; angioedema; may occur a few days after therapy begins; discontinue product, notify prescriber immediately, keep emergency equipment nearby

• 
Bleeding: ecchymosis, bleeding gums, hematuria, stool guaiac daily

 
Overgrowth of infection:
perineal itching, fever, malaise, redness, pain, swelling, drainage, rash, diarrhea, change in cough, sputum

Evaluate:

• 
Therapeutic response: decreased symptoms of infection, negative C&S

Teach patient/family:

• 
To use yogurt or buttermilk to maintain intestinal flora, decrease diarrhea

• 
To take all medication prescribed for length of time ordered

 
To report sore throat, bruising, bleeding, joint pain (may indicate
blood dyscrasias
[rare]); diarrhea with mucus, blood (may indicate
pseudomembranous colitis
)

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