Mosby's 2014 Nursing Drug Reference (250 page)

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

lurasidone (Rx)

(loo-ras′i-done)

Latuda

Func. class.:
Atypical antipsychotic

Chem. class.:
Benzoisothiazol derivative

ACTION:

May modulate central dopaminergic and serotonergic activity; high affinity for dopamine-D2 receptors, serotonin 5-HT2A receptors; partial agonist at serotonin 5-HT1A receptor

USES:

Schizophrenia

CONTRAINDICATIONS:

Hypersensitivity

Precautions:
Pregnancy (B), breastfeeding, children, geriatric patients, abrupt discontinuation, ambient temperature increase, breast cancer, cardiac disease, dehydration, diabetes, ketoacidosis, driving, operating machinery, dysphagia, heart failure, hematologic/hepatic/renal disease, hypotension, hypovolemia, MI, infertility, obesity, Parkinson’s disease, seizures, strenuous exercise, stroke, substance abuse, suicidal ideation, syncope, tardive dyskinesia

 

Black Box Warning:

Dementia: antipsychotics (e.g., as lurasidone) not approved for treatment of dementia-related psychosis in geriatric patients; may increase risk of death in this population

DOSAGE AND ROUTES
Calculator

• Adult:
PO
40 mg/day, range 40-160 mg/day; for those receiving CYP3A4 inhibitors (max 80 mg/day), do not use with strong CYP3A4 inducers/inhibitors

Hepatic/renal dose

• Adult:
PO
Child-Pugh class B/C; CCr ≥10 ml/min, ≤50 ml/min, max 40 mg/day

Available forms:
Tabs 40, 80 mg

Administer:

• 
Give with meal of ≥350 calories

SIDE EFFECTS

CNS:
Agitation, akathisia, anxiety, dizziness, drowsiness, fatigue, hyperthermia, insomnia, dystonic reactions;
neuroleptic malignant syndrome (rare),
pseudoparkinsonism, restlessness,
seizures, suicidal ideation,
syncope, tardive dyskinesia, vertigo

CV:
Angina,
AV block, bradycardia,
hypertension, orthostatic hypotension,
sinus tachycardia, stroke

EENT:
Blurred vision

ENDO:
Diabetes mellitus, ketoacidosis, hyperglycemia, hyperprolactinemia

GI:
Abdominal pain, diarrhea, dyspepsia, nausea, vomiting, gastritis, weight gain/loss

GU:
Amenorrhea, breast enlargement, dysmenorrhea, impotence, dysuria, renal failure

HEMA:
Agranulocytosis, anemia, leucopenia, neutropenia

INTEG:
Pruritus, rash

MS:
Back pain, dysarthria;
rhabdomyolysis (rare)

SYST:
Angioedema

PHARMACOKINETICS

99% protein binding; excreted 80% in feces, 9% in urine; elimination half-life 18 hr; 9-19% absorbed; peak 1-3 hr, steady state 7 days

INTERACTIONS

Increase:
lurasidone effect—strong CYP3A4 inhibitors; do not use concurrently

Increase:
serotonin syndrome, neuroleptic malignant syndrome—SSRIs, SNRIs

Increase:
sedation—other CNS depressants, alcohol

NURSING CONSIDERATIONS
Assess:

• 
Schizophrenia:
hallucinations, delusions, agitation, social withdrawal; monitor orientation, behavior, mood prior to and periodically during therapy

• 
Neuroleptic malignant syndrome (rare):
fever, dyspnea, tachycardia, seizures, sweating, hypo/hypertension, muscle stiffness, pallor; report immediately

• 
Blood dyscrasias:
CBC periodically; blood dyscrasias may occur

• 
Serious cardiac symptoms:
AV block, stroke, bradycardia may occur

• 
EPS:
restlessness, difficulty speaking, loss of balance, pill rolling, masklike face, shuffling gait, rigidity, tremors, muscle spasms; monitor before and periodically during therapy; report tardive dyskinesia immediately

 

Black Box Warning:

Dementia:
this product is not approved for geriatric patients with dementia-related psychosis

• 
Weight gain, hyperglycemia, metabolic changes in diabetes

Perform/provide:

• 
Storage at room temp, protection from moisture

Evaluate:

• 
Therapeutic response: decreasing hallucinations, delusions, agitation, social withdrawal

Teach patient/family:

• 
About reason for treatment, expected results

• 
That lab work will be needed regularly

• 
To avoid hazardous activities until response is known

• 
To avoid OTC products unless approved by prescriber

• 
To report fast heartbeat, extra beats

• 
To report EPS symptoms, blood dyscrasias: sore throat, fever, unusual bleeding/bruising

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

lymphocyte immune
globulin (anti-thymocyte, equine) (Rx)

Atgam

Func. class.:
Immune globulins—immunosuppressant

ACTION:

Produces immunosuppression by inhibiting the function of lymphocytes (T)

USES:

Renal organ transplants to prevent rejection, aplastic anemia

Unlabeled uses:
Immunosuppressant in liver, bone marrow, heart, and other organ transplants; stem-cell transplant preparations

CONTRAINDICATIONS:

Hypersensitivity to this product or equine/leporine protein; acute viral illness

Precautions:
Pregnancy (C), breastfeeding, children, severe renal/hepatic disease, leukopenia, thrombocytopenia

 

Black Box Warning:

Infection, neoplastic disease

DOSAGE AND ROUTES
Calculator
Renal allograft rejection

• Adult/child:
IV
10-15 mg/kg/day × 14 days then every other day for 14 days if needed up to 21 total

Prevent renal allograft rejection

• Adult:
IV
15 mg/kg/day × 7-14 days then every other day × 14 days for total of 21 doses in 28 days

Aplastic anemia

• Adult:
IV
10-20 mg/kg/day × 8-14 days then every other day for ≤21 total doses

Available forms:
Inj 50 mg equine gamma globulin/ml

Administer:

• 
Do not infuse <4 hr; usually given over 4-8 hr

• 
Use 0.2-1 micron in-line filter

• 
Skin testing must be completed before treatment; use intradermal inj of 0.1 ml of a 1:1000 dilution (5 mcg horse IgG) in 0.9% NaCl; if wheal or rash >10 mm or both, use caution during inf

• 
Dilute in saline sol before inf; invert IV bag so undiluted product does not contact air inside; conc should not be >1 mg/ml; do not shake

• 
Keep emergency equipment nearby for severe allergic reaction

SIDE EFFECTS
Renal transplant

CNS:
Fever, chills, headache, dizziness, weakness, faintness,
seizures

CV:
Chest pain, hypo/hypertension, tachycardia

GI:
Diarrhea, nausea, vomiting, epigastric pain,
GI bleeding

INTEG:
Rash, pruritus, urticaria, wheal

SYST:
Anaphylaxis

Aplastic anemia

CNS:
Fever, chills, headache,
seizures,
lightheadedness, encephalitis, postviral encephalopathy

CV:
Bradycardia, myocarditis, irregularity

GI:
Nausea, LFTs abnormality

HEMA:
Thrombocytopenia, leukopenia

MS:
Backache

RESP:
Dyspnea, pulmonary edema

PHARMACOKINETICS

Onset rapid, half-life 5-7 days

NURSING CONSIDERATIONS
Assess:

• 
Infection:
if infection occurs, evaluation will be needed to continue therapy

• 
Renal studies: BUN, creatinine at least monthly during treatment, for 3 mo after treatment

• 
Hepatic studies: alk phos, AST, ALT, bilirubin

• 
CBC with differential

Evaluate:

• 
Therapeutic response: absence of rejection; hematologic recovery (aplastic anemia)

Teach patient/family:

• 
To report fever, chills, sore throat, fatigue, since serious infections may occur

• 
To use contraceptive measures during treatment, for 12 wk after therapy

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

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