Mosby's 2014 Nursing Drug Reference (283 page)

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

naproxen (Rx,
OTC
)

Aleve, Anaprox, Anaprox DS, Apo-Napro-Na
, EC-Naprosyn, Equaline All Day Relief, Good Sense All Day Pain Relief, Midol Extended Relief, Naprelan, Novo-Naprox
, Novo-Naprox Sodium
, Nu-Naprox
, Top Care All Day Pain Relief, Wal-Proxen

Func. class.:
Nonsteroidal antiinflammatory, nonopioid analgesic

Chem. class.:
Propionic acid derivative

Do not confuse:
Naprosyn
/Natacyn/Naprelan

ACTION:

Inhibits COX-1, COX-2 by blocking arachidonate; analgesic, antiinflammatory, antipyretic

USES:

Osteoarthritis; rheumatoid, gouty arthritis; primary dysmenorrhea; ankylosing spondylitis, bursitis, tendinitis, myalgia, dental pain

Unlabeled uses:
Juvenile rheumatoid arthritis, bone pain, migraine/migraine prophylaxis, heterotropic ossification

CONTRAINDICATIONS:

Pregnancy (D) 3rd trimester, hypersensitivity to NSAIDs, salicylates; asthma, severe renal/hepatic disease, ulcer disease

 

Black Box Warning:

Perioperative pain in CABG surgery

Precautions:
Pregnancy (C) breastfeeding, children <2 yr, geriatric patients, bleeding disorders, GI disorders, cardiac disorders, hypersensitivity to other antiinflammatory agents, CCr <30 ml/min

 

Black Box Warning:

MI, GI bleeding, stroke

DOSAGE AND ROUTES
Calculator

200 mg base
=
220 mg naproxen sodium

Antiinflammatory/analgesic/antidysmenorrheal

• Adult:
PO
250-500 mg bid, max 1500 mg/day;
DEL REL
375-500 mg bid

• Child ≥2 yr:
PO
5-7 mg/kg q8-12hr

Antigout

• Adult:
PO
750 mg, then 250 mg q8hr

OTC use

• Adult:
PO
220 mg q8-12hr or 440 mg then 220 mg q12hr; max 660 mg/24hr taken ≤10 days

• Geriatric >65 yr:
PO
Max 220 mg q12hr

Available forms:
Naproxen:
tabs 250, 375, 500 mg; del rel tabs (EC-Naprosyn, Naprosyn-E) 250
, 375, 500 mg; oral susp 125 mg/5 ml; ext rel tabs (CR) 375, 500, 750 mg;
naproxen sodium:
tabs 220, 275, 550 mg tab, ext rel 220 mg

Administer:

• 
With food to decrease GI symptoms; take on empty stomach to facilitate absorption, give with full glass of liquid

• 
Do not crush, break, or chew ext rel tabs

• 
OTC for ≤10 days unless approved by prescriber

• 
Oral susp:
shake well, use measuring cup provided or other calibrated device

SIDE EFFECTS

CNS:
Dizziness, drowsiness, fatigue, tremors, confusion, insomnia, anxiety, depression

CV:
Tachycardia, peripheral edema, palpitations, dysrhythmias,
MI, stroke

EENT:
Tinnitus, hearing loss, blurred vision

GI:
Nausea, anorexia, vomiting, diarrhea, jaundice,
hepatitis,
constipation, flatulence, cramps, peptic ulcer,
GI ulceration, bleeding, perforation

GU:
Nephrotoxicity: dysuria, hematuria, oliguria, azotemia

HEMA:
Blood dyscrasias

INTEG:
Purpura, rash, pruritus, sweating

SYST:
Anaphylaxis

PHARMACOKINETICS

PO:
Peak 2-4 hr, half-life 12-17 hr; metabolized in liver; excreted in urine (metabolites), breast milk; 99% protein binding

INTERACTIONS

Increase:
renal impairment—ACE inhibitors

Increase:
toxicity risk—methotrexate, lithium, antineoplastics, probenecid, radiation treatment

Increase:
bleeding risk—oral anticoagulants, thrombolytic agents, eptifibatide, tirofiban, cefamandole, cefotetan, cefoperazone, clopidogrel, ticlopidine, plicamycin, SSRIs, SNRIs, tricyclics, valproic acid

Increase:
GI side effects risk—aspirin, corticosteroids, alcohol, NSAIDs

Decrease:
effect of antihypertensives, diuretics

Decreased:
absorption of naproxen—antacids, sucralfate, cholestyramine

Drug/Herb

• 
Bleeding risk: feverfew, garlic, ginger, ginkgo, ginseng
(Panax)

Drug/Lab Test

Increase:
BUN, alk phos, LFTs, potassium, glucose, cholesterol

Decrease:
potassium, sodium

False increase:
5-HIAA, 17KS

NURSING CONSIDERATIONS
Assess:

 

Black Box Warning:

Cardiac status: CV thrombotic events, MI, stroke; may be fatal; not to be used with CABG

 

Black Box Warning:

GI status: ulceration, bleeding, perforation; may be fatal; obtain stool guaiac

• 
Pain:
frequency, characteristics, intensity; relief before and 1-2 hr after product

• 
Arthritis:
range of motion, pain, swelling before and 1-2 hr after use

• 
Fever:
before, 1 hr after use

 
Asthma, aspirin hypersensitivity or nasal polyps, increased risk of hypersensitivity

• 
Renal, hepatic, blood studies:
BUN, creatinine, AST, ALT, Hgb, LDH, blood glucose, Hct, WBC, platelets, CCr before treatment, periodically thereafter during long-term therapy

• 
Audiometric, ophthalmic exam before, during, after treatment; if taking long term, eye, ear problems: blurred vision, tinnitus (may indicate toxicity)

Perform/provide:

• 
Storage at room temp

Evaluate:

• 
Therapeutic response: decreased pain, stiffness, swelling in joints; ability to move more easily

Teach patient/family:

• 
To report blurred vision, ringing, roaring in ears (may indicate toxicity)

• 
To avoid driving, other hazardous activities if dizziness or drowsiness occurs

 
To report change in urine pattern, weight increase, edema (face, lower extremities), pain increase in joints, fever, blood in urine (indicates nephrotoxicity); black stools, flulike symptoms

• 
That therapeutic effects may take up to 1 mo in arthritis

• 
To avoid ASA, alcohol, steroids or other OTC medications without prescriber approval

• 
To report use to all health care providers

• 
To notify prescriber if pregnancy is planned or suspected, pregnancy (C), avoid breastfeeding

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