Mosby's 2014 Nursing Drug Reference (331 page)

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

procainamide (Rx)

(proe-kane-ah′mide)

Func. class.:
Antidysrhythmic (class IA)

Chem. class.:
Procaine HCl amide analog

ACTION:

Depresses excitability of cardiac muscle to electrical stimulation and slows conduction velocity in atrium, bundle of His, and ventricle; increases refractory period

USES:

Life-threatening ventricular dysrhythmias

Unlabeled uses:
Atrial fibrillation, flutter

CONTRAINDICATIONS:

Hypersensitivity, severe heart block, torsades de pointes

 

Black Box Warning:

Lupus erythematosus

Precautions:
Pregnancy (C), breastfeeding, children, renal/hepatic disease, CHF, respiratory depression, cytopenia,
dysrhythmia associated with digoxin toxicity, myasthenia gravis, digoxin toxicity

 

Black Box Warning:

Bone marrow failure, cardiac arrhythmias

DOSAGE AND ROUTES
Calculator
Ventricular tachycardia during CPR

• Adult:
IV
loading dose 20 mg/min; either ventricular tachycardia resolves or patient becomes hypotensive; QRS complex is widened by 50% of original width or total is 17 mg/kg (1.2 g for a 70-kg patient); may give up to 50 mg/min in urgent situations; maintenance: 1-4 mg/min
CONT IV INF; IM
50 mg/kg/day in divided doses q3-6hr

• Child:
IV
PALS 15 mg/kg over 30-60 min

Renal dose

• Adult:
IV
CCr 35-59 ml/min, give 70% maintenance dose; CCr 15-34 ml/min, give 40%-60% maintenance dose; CCr <15 ml/min, individualize dose

Available forms:
Inj 100, 500 mg/ml

Administer:
IM route

• 
IM inj in deltoid; aspirate to avoid intravascular administration, use only when unable to use IV

Direct IV route

• 
Dilute each 100 mg/10 ml of 0.9% NaCl, give at max 50 mg/min

Intermittent IV INF route

• 
Dilute 0.2-1 g/50-500 ml of D
5
W (2-4 mg/ml), give over 30-60 min at max 25-50 mg/min, use inf pump

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

SIDE EFFECTS

CNS:
Headache, dizziness
, confusion, psychosis, restlessness, irritability, weakness, depression

CV:
Hypotension
,
heart block, cardiovascular collapse, arrest, torsades de pointes

GI:
Nausea, vomiting, anorexia, diarrhea, hepatomegaly, pain, bitter taste

HEMA:
SLE syndrome,
agranulocytosis, thrombocytopenia, neutropenia, hemolytic anemia

INTEG:
Rash, urticaria, edema, swelling (rare), pruritus, flushing,
angioedema

SYST:
SLE

PHARMACOKINETICS

Metabolized in liver to active metabolites, excreted unchanged by kidneys (60%), protein binding 15%

IM:
Peak 10-60 min, half-life 3 hr

INTERACTIONS

Increase:
effects of neuromuscular blockers

Increase:
procainamide effects—cimetidine, quiNIDine, trimethoprim, β-blockers, ranitidine

Increase:
toxicity—other antidysrhythmics, thioridazine, quinolones

Drug/Lab Test

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

NURSING CONSIDERATIONS
Assess:

 

Black Box Warning:

Cardiac dysrhythmias:
ECG continuously if using IV to determine increased PR or QRS segments; discontinue immediately; watch for increased ventricular ectopic beats, maximum need to rebolus

• 
Therapeutic blood levels, 4-10 mcg/ml or NAPA levels 10-20 mcg/ml

 

Black Box Warning:

Bone marrow suppression:
CBC q2wk × 3 mo; leukocyte, neutrophil, platelet counts may be decreased, treatment may need to be discontinued

• 
I&O ratio; electrolytes (K, Na, Cl), weight weekly, report gain of >2 lb

 
Toxicity:
confusion, drowsiness, nausea, vomiting, tachydysrhythmias, oliguria

• 
ANA titer; during long-term treatment, watch for lupuslike symptoms

• 
Cardiac rate, rhythm, character, B/P continuously for fluctuations

• 
Respiratory status: rate, rhythm, character, lung fields; bilateral crackles may occur in CHF patient; watch for respiratory depression

 
CNS effects: dizziness, confusion, psychosis, paresthesias, seizures; product should be discontinued

Evaluate:

• 
Therapeutic response: decreased dysrhythmias

Teach patient/family:

• 
That wax matrix may appear in stools

• 
Not to discontinue without provider’s approval

 

Black Box Warning:

To notify prescriber immediately if lupuslike symptoms appear (joint pain, butterfly rash, fever, chills, dyspnea)

 

Black Box Warning:

To notify prescriber of leukopenia (sore mouth, gums, throat) or thrombocytopenia (bleeding, bruising)

• 
How to take pulse and when to report to prescriber

• 
To avoid driving, other hazardous activities until product effect is known

TREATMENT OF OVERDOSE:

O
2
, artificial ventilation, ECG, administer DOPamine for circulatory depression, diazepam or thiopental for seizures, isoproterenol

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

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