Mosby's 2014 Nursing Drug Reference (428 page)

BOOK: Mosby's 2014 Nursing Drug Reference
2.56Mb size Format: txt, pdf, ePub

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

zolpidem (Rx)

(zole′pih-dem)

Ambien, Ambien CR, Edluar, Zolpimist

Func. class.:
Sedative/hypnotic

Chem. class.:
Imidazopyridine

 

Controlled Substance Schedule IV
ACTION:

Produces CNS depression at limbic, thalamic, hypothalamic levels of CNS; may be mediated by neurotransmitter γ-aminobutyric acid (GABA); results are sedation, hypnosis, skeletal muscle relaxation, anticonvulsant activity, anxiolytic action

USES:

Insomnia, short-term treatment; insomnia with difficulty of sleep onset/maintenance (ext rel)

CONTRAINDICATIONS:

Hypersensitivity to benzodiazepines

Precautions:
Pregnancy (C), breastfeeding, children <18 yr, geriatric patients, anemia, renal/hepatic disease, suicidal individuals, drug abuse, psychosis, seizure disorders, angioedema, depression, respiratory disease, sleep apnea, sleep-related behaviors (sleepwalking), myasthenia gravis

DOSAGE AND ROUTES
Calculator

• Adult:
PO
5 mg (women), 5-10 mg (men) at bedtime × 7-10 days only; total max dose 10 mg;
EXT REL
6.25 (women), 6.25-12.5 mg (men) immediately before bedtime, may be useful for ≤24 wk in people 18-64 yr with primary insomnia;
oral spray
(Zolpimist) 5 mg (women), 5-10 mg (men) immediately before bedtime, max 10 mg/day;
SL
(Edluar) 5 mg (women), 5-10 mg (men) just before bedtime

• Geriatric:
PO
5 mg at bedtime;
EXT REL
6.25 mg; SL: 5 mg at bedtime

Available forms:
Tabs 5, 10 mg; ext rel tabs 6.25, 12.5 mg; SL: 5, 10 mg; oral spray 5 mg/spray

Administer:
PO route

• 
Do not break, crush, or chew ext rel

• 
Take with full glass of water

• 
½-1 hr before bedtime (PO); right before retiring (ext rel)

• 
On empty stomach for fast onset; may be taken with food if GI symptoms occur

Spray route

• 
Prime before first use or if pump is not used for ≥14 days

• 
Do not use spray with or after a meal

Sublingual route

• 
Separate blister pack at perforation, peel paper and push product through, place product under tongue, allow to dissolve before swallowing; do not take with water

SIDE EFFECTS

CNS:
Headache, lethargy, drowsiness, daytime sedation, dizziness, confusion, lightheadedness, anxiety, irritability, amnesia, poor coordination, complex sleep-related reactions (sleep driving, sleep eating), depression, somnolence,
suicidal ideation,
abnormal thinking/behavioral changes

CV:
Chest pain, palpitations

GI:
Nausea, vomiting, diarrhea, heartburn, abdominal pain, constipation

HEMA:
Leukopenia, granulocytopenia (rare)

MISC:
Myalgia

SYST:
Severe allergic reactions, angioedema, anaphylaxis

PHARMACOKINETICS

PO:
Onset up to 1.5 hr, metabolized by liver, excreted by kidneys (inactive metabolites), crosses placenta, excreted in breast milk, half-life 2-3 hr

INTERACTIONS

Increase:
action of both products—alcohol, CNS depressants

Increase or decrease:
zolpidem levels—CYP3A4 inhibitors/inducers

Decrease:
zolpidem effect—rifamycins

NURSING CONSIDERATIONS
Assess:

 
Mental status: mood, sensorium, affect, memory (long, short term), excessive sedation, impaired coordination,
suicidal thoughts/behaviors

• 
Blood dyscrasias: fever, sore throat, bruising, rash, jaundice, epistaxis (rare)

• 
Type of sleep problem: falling asleep, staying asleep

Perform/provide:

• 
Storage in tight container in cool environment

Evaluate:

• 
Therapeutic response: ability to sleep at night, decreased amount of early morning awakening if taking product for insomnia

Teach patient/family:

• 
That dependence is possible after long-term use

 
That complex sleep-related behaviors may occur (sleep driving/eating)

• 
To avoid driving or other activities requiring alertness until dosage is stabilized

• 
To avoid alcohol ingestion

• 
That effects may take 2 nights for benefits to be noticed

• 
Not to use during pregnancy, breastfeeding

• 
That hangover is common in geriatric patients but less common than with barbiturates; that rebound insomnia may occur for 1-2 nights after discontinuing product; not to discontinue abruptly; to taper

• 
Not to crush, chew, break ext rel tabs

• 
To prime spray pump before using

TREATMENT OF OVERDOSE:

Lavage, activated charcoal; monitor electrolytes, VS

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

zonisamide (Rx)

(zone-is′a-mide)

Zonegran

Func. class.:
Anticonvulsant

Chem. class.:
Sulfonamides

ACTION:

May act through action at sodium and calcium channels, but exact action is unknown; serotonergic action

USES:

Epilepsy, adjunctive therapy for partial seizures

Unlabeled uses:
Bipolar disorder (mania)

CONTRAINDICATIONS:

Hypersensitivity to this product or sulfonamides; psychiatric condition, hepatic failure

Precautions:
Pregnancy (C), breastfeeding, children <16 yr, geriatric patients, allergies, renal/hepatic disease

DOSAGE AND ROUTES
Calculator

• Adult and child >16 yr:
100 mg/day, may increase after 2 wk to 200 mg/day, may increase q2wk, max dose 600 mg/day

Available forms:
Caps 25, 50, 100 mg

SIDE EFFECTS

CNS:
Dizziness, insomnia, paresthesias, depression, fatigue, headache, confusion, somnolence, agitation, irritability, speech disturbance,
suicidal ideation, seizures, status epilepticus

EENT:
Diplopia, verbal difficulty, speech abnormalities, taste perversion, amblyopia, pharyngitis, rhinitis, tinnitus, nystagmus

GI:
Nausea, constipation, anorexia, weight loss, diarrhea, dyspepsia, dry mouth, abdominal pain

GU:
Kidney stones

HEMA:
Aplastic anemia, granulocytopenia
(rare); ecchymosis

INTEG:
Rash, pruritus

MISC:
Flulike symptoms

SYST:
Stevens-Johnson syndrome,
metabolic acidosis

PHARMACOKINETICS

Peak 2-6 hr, half-life in RBCs 105 hr, metabolized by liver, excreted by kidneys, protein binding 40%

INTERACTIONS

Decrease:
half-life of zonisamide—carBAMazepine, phenytoin, PHENobarbital

Altered product levels:
CYP3A4 inhibitors/inducers

Increase:
CNS depression—alcohol

Drug/Herb

Increase:
effect of this product—St. John’s wort

Drug/Food

• 
Do not use with grapefruit

Drug/Lab Test

Increase:
BUN, creatinine

NURSING CONSIDERATIONS
Assess:

• 
Seizures:
duration, type, intensity, precipitating factors

• 
Renal function: albumin conc, BUN, creatinine, serum bicarbonate at baseline and periodically

 
Mental status: mood, sensorium, affect, memory (long, short term),
suicidal thoughts/behaviors

• 
Stevens-Johnson syndrome, aplastic anemia, fulminant hepatic necrosis; may cause death; monitor for rashes and hypersensitive reactions

• 
Rash, hypersensitivity reactions

• 
Obtain bicarbonate before treatment/periodically; metabolic acidosis may occur in child

Evaluate:

• 
Therapeutic response: decrease in severity of seizures

Teach patient/family:

• 
Not to discontinue product abruptly because seizures may occur

• 
To avoid hazardous activities until stabilized on product

• 
To carry emergency ID stating product use

• 
To notify prescriber of rash immediately; to notify prescriber of back pain, abdominal pain, blood in urine; to increase fluid intake to reduce risk of kidney stones

• 
To notify prescriber if pregnancy planned, suspected

• 
To avoid grapefruit

• 
To notify prescriber of sore throat, fever, easy bruising

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

Other books

Collapse by Richard Stephenson
Eat Prey Love by Kerrelyn Sparks
Glimmers by Barbara Brooke
Marriage by Law by N.K. Pockett
Weight of Silence by Heather Gudenkauf
Four New Messages by Cohen, Joshua
Beauty and the Blitz by Sosie Frost