Mosby's 2014 Nursing Drug Reference (293 page)

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

nitrofurazone topical

 

nitroglycerin (Rx)

(nye-troe-gli′ser-in)

extended release caps (Rx)

Nitro-Time

topical ointment (Rx)

Nitro-Bid

rectal ointment

Rectiv

SL (Rx)

Nitrostat

translingual spray (Rx)

Nitrolingual

transdermal (Rx)

Minitran, Nitro-Dur

Func. class.:
Coronary vasodilator, antianginal

Chem. class.:
Nitrate

Do not confuse:
Nitro-Bid
/Nicobid

ACTION:

Decreases preload and afterload, which are responsible for decreasing left ventricular end-diastolic pressure, systemic vascular resistance; dilates coronary arteries, improves blood flow through coronary vasculature, dilates arterial and venous beds systemically

USES:

Chronic stable angina pectoris, prophylaxis of angina pain, CHF, acute MI, controlled hypotension for surgical procedures, anal fissures

Unlabeled uses:
Pulmonary hypertension, hemorrhoids, retained placenta

CONTRAINDICATIONS:

Hypersensitivity to this product or nitrites; severe anemia, increased intracranial pressure, cerebral hemorrhage, closed-angle glaucoma, cardiac tamponade, cardiomyopathy, constrictive pericarditis

Precautions:
Pregnancy (C), breastfeeding, children, postural hypotension, severe renal/hepatic disease, acute MI, abrupt discontinuation, hyperthyroidism

DOSAGE AND ROUTES
Calculator

• Adult:
SL
Dissolve tab under tongue when pain begins; may repeat q5min until relief occurs; take ≤3 tabs/15 min; use 1 tab prophylactically 5-10 min before activities;
SUS CAP
q6-12hr on empty stomach;
TOP
1-2 in q8hr, increase to 4 in q4hr as needed;
IV
5 mcg/min then increase by 5 mcg/min q3-5min; if no response after 20 mcg/min, increase by 10-20 mcg/min until desired response;
TRANS PATCH
apply a pad daily to a site free of hair; remove patch at bedtime to provide 10-12 hr nitrate-free interval to avoid tolerance

• Child:
IV
Initially 0.25-0.5 mcg/kg/min, titrate to patient response, usual dose 1-3 mcg/kg/min transmucosal

Anal fissures (Rectiv)

• Adult:
Rectal
Apply 1 inch of 0.4% ointment q12hr × 3 wk

Available forms:
Translingual aero 0.4 mg/metered spray; sus rel tabs 2.6, 6.5, 9 mg; SL tabs 0.3, 0.4, 0.6 mg; topical oint 2%; trans syst 0.1, 0.2, 0.3, 0.4, 0.6, 0.8 mg/hr; inj sol 25 mg/250 ml, 50 mg/250 ml, 50 mg/500 ml, 100 mg/250 ml, 200 mg/500 ml; rectal ointment 0.4% (Rectiv)

Administer:

• 
Topical ointment
should be measured on papers supplied, use paper to spread on nonhairy area of chest, abdomen, thigh skin; thin layer spread over 2-3 inches, do not rub

PO route

• 
Swallow sus rel products whole; do not break, crush, or chew

• 
With 8 oz water on empty stomach (oral tablet) 1 hr before or 2 hr after meals

• 
SL:
should be dissolved under tongue, not swallowed

• 
Aerosol
sprayed under tongue
(nitrolingual),
not inhaled; prime before
1st-time use or if product has not been used in >6 wk; press valve head with forefinger

Transdermal route

• 
Apply new TD patch daily, remove after 12-14 hr to prevent tolerance

Rectal route

• 
Cover finger with plastic wrap, disposable glove, or finger cot; lay finger alongside 1-inch dosing line on carton, squeeze tube until equal to 1-inch dosing line; insert covered finger gently into anal canal no further than 1st finger joint and apply to sides; wash hands thoroughly; if too painful, apply directly to outside of anus

Continuous IV INF route

• 
Diluted in D
5
, D
5
W, 0.9% NaCl for inf to 200-400 mcg/ml, depending on patient’s fluid status; common dilution 50 mg/250 ml, use controlled inf device; use glass inf bottles, non–polyvinyl-chloride inf tubing; titrate to patient response; do not use filters

Y-site compatibilities:
Acyclovir, alfen-tanil, amikacin, aminocaproic acid, aminophylline, amiodarone, amphotericin B cholesteryl, amphotericin B lipid complex, amphotericin B liposome, anidulafungin, argatroban, ascorbic acid, atenolol, atracurium, atropine, azaTHIOprine, aztreonam, benztropine, bivalirudin, bleomycin, bumetanide, buprenorphine, butorphanol, calcium chloride/gluconate, CARBOplatin, caspofungin, cefamandole, ceFAZolin, cefmetazole, cefonicid, cefoperazone, cefotaxime, cefoTEtan, cefOXitin, cefTAZidime, ceftizoxime, cefTRIAXone, cefuroxime, cephalothin, cephapirin, chloramphenicol, chlorproMAZINE, cimetidine, cisatracurium, CISplatin, clindamycin, cloNIDine, cyanocobalamin, cyclophosphamide, cycloSPORINE, cytarabine, DACTINomycin, dexamethasone, digoxin, diltiazem, diphenhydrAMINE, DOBUTamine, DOCEtaxel, DOPamine, doxacurium, DOXOrubicin, doxycycline, drotrecogin alfa, enalaprilat, ePHEDrine, EPINEPHrine, epirubicin, epoetin alfa, eptifibatide, ertapenem, erythromycin, esmolol, etoposide, famotidine, fenoldopam, fentaNYL, fluconazole, fludarabine, fluorouracil, folic acid, ganciclovir, gatifloxacin, gemcitabine, gemtuzumab, gentamicin, glycopyrrolate, granisetron, heparin, hydrocortisone, HYDROmorphone, hydrOXYzine, IDArubicin, ifosfamide, imipenem-cilastatin, indomethacin, insulin (regular), irinotecan, isoproterenol, ketorolac, labetalol, lidocaine, linezolid, LORazepam, magnesium sulfate, mannitol, mechlorethamine, meperidine, metaraminol, methicillin, methotrexate, methoxamine, methyldopate, methylPREDNISolone, metoclopramide, metroNIDAZOLE, mezlocillin, micafungin, miconazole, midazolam, milrinone, minocycline, mitoXANtrone, morphine, moxalactam, mycophenolate, nafcillin, nalbuphine, naloxone, nesiri-tide, netilmicin, niCARdipine, nitroprusside, norepinephrine, octreotide, ondansetron, oxacillin, oxaliplatin, oxytocin, PACLitaxel, palonosetron, pamidronate, pancuronium, pantoprazole, papaverine, PEMEtrexed, penicillin G potassium/sodium, pentamidine, pentazocine, PENTobarbital, PHENobarbital, phentolamine, phenylephrine, phytonadione, piperacillin, piperacillin-tazobactam, polymyxin B, potassium chloride, procainamide, prochlorperazine, promethazine, propofol, propranolol, protamine, pyridoxine, quiNIDine, quinupristin-dalfopristin, ranitidine, remifentanil, ritodrine, rocuronium, sodium bicarbonate, succinylcholine, SUFentanil, tacrolimus, teniposide, theophylline, thiamine, thiopental, thiotepa, ticarcillin, ticarcillin-clavulanate, tigecycline, tirofiban, tobramycin, tolazoline, trimetaphan, urokinase, vancomycin, vasopressin, vecuronium, verapamil, vinCRIStine, vinorelbine, voriconazole, warfarin, zoledronic acid

SIDE EFFECTS

CNS:
Headache, flushing, dizziness

CV:
Postural hypotension
, tachycardia,
collapse,
syncope, palpitations

GI:
Nausea, vomiting

INTEG:
Pallor, sweating, rash

PHARMACOKINETICS

Metabolized by liver, excreted in urine, half-life 1-4 min

SUS REL:
Onset 20-45 min, duration 3-8 hr

SL:
Onset 1-3 min, duration 30 min

TRANSDERMAL:
Onset 30 min-1 hr, duration 12-24 hr

AEROSOL:
Onset 2 min, duration 30-60 min

TOPICAL OINT:
Onset 30-60 min, duration 2-12 hr

IV:
Onset 1-2 min, duration 3-5 min

INTERACTIONS

• 
Severe hypotension, CV collapse: alcohol

Increase:
effects of β-blockers, diuretics, antihypertensives, calcium channel blockers

Increase:
fatal hypotension—sildenafil, tadalafil, vardenafil; do not use together

Increase:
nitrate level—aspirin

Decrease:
heparin—IV nitroglycerin

Drug/Lab Test

Increase:
urine catecholamine, urine VMA

False increase:
cholesterol

NURSING CONSIDERATIONS
Assess:

• 
Pain:
duration, time started, activity being performed, character

• 
Orthostatic B/P, pulse prior to and after administration

• 
Tolerance if taken over long period

• 
Headache, lightheadedness, decreased B/P; may indicate a need for decreased dosage

Evaluate:

• 
Therapeutic response: decrease, prevention of anginal pain

Teach patient/family:

• 
To place buccal tab between lip and gum above incisors or between cheek and gum

• 
To keep tabs in original container; to replace q6mo because effectiveness is lost; to keep away from heat, moisture, light

• 
That if 3 SL tabs in 15 min do not relieve pain, to seek immediate medical attention

• 
To avoid alcohol

• 
That product may cause headache; that tolerance usually develops; to use nonopioid analgesic

• 
That product may be taken before stressful activity: exercise, sexual activity

• 
That SL may sting when product comes in contact with mucous membranes

• 
To avoid hazardous activities if dizziness occurs

• 
To comply with complete medical regimen

• 
To make position changes slowly to prevent fainting

 
Never to use erectile dysfunction products (sildenafil, tadalafil, vardenafil); may cause severe hypotension, death

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

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