Mosby's 2014 Nursing Drug Reference (434 page)

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

RARELY USED
ocriplasmin

(ok-ri-plas′min)

Jetrea

Func. class.:
Ophthalmic agent

USES:

Symptomatic vitreomacular adhesion

DOSAGE AND ROUTES
Calculator

• Adult:
Intravitreal INJ
0.125 mg (0.1 ml of diluted solution) by intravitreal injection to the affected eye once as a single dose

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

omacetaxine

(oh′ma-set-ax′een)

Synribo

Func. class.:
Antineoplastic-miscellaneous

Chem. class.:
Cephalotaxine ester (derived from the Evergreen tree:
Cephalotaxus harringtonia)

ACTION:

Inhibits protein synthesis by binding to site of large ribosome subunit, it reduces Bcr-Abl and Mcl-1 independent of direct Bcr-Abl binding, inducing apoptosis

USES:

Chronic or accelerated phase chronic myelogenous leukemia (CML) with resistance or/and intolerance to 2 or more tyrosine kinase inhibitors

CONTRAINDICATIONS:

Pregnancy (D), breastfeeding, hypersensitivity

Precautions:
Children, bleeding, diabetes mellitus, female patients, geriatric patients, hyperglycemia, hyperosmolar hyperglycemic state (HHS), infection, anemia, neutropenia, thrombocytopenia

DOSAGE AND ROUTES
Calculator

• Adult:
SUBCUT
1.25 mg/m
2
bid × 14 days every 28 days

 
Grade 4 neutropenia (absolute neutrophil count [ANC]
<
0.5
×
109/L) or grade 3 thrombocytopenia (platelet count
<
50
×
109/L):
Do not start the next cycle until the ANC is ≥1 × 10
9
/L and platelets are ≥50 × 10
9
/L; when therapy is resumed, reduce the number of dosing days by 2 days/cycle (initial cycles, from 14 to 12 days; maintenance cycles, from 7 to 5 days)

Available forms:
Powder for injection 3.5 mg

Administer:
SUBCUT route

• 
Reconstitution:
Add 1 ml of 0.9% saline for injection/vial to 3.5 mg/ml, gently swirl until the solution is clear and completely dissolved, visually inspect for particulate matter and discoloration before use, protect from light

• 
Administration:
Calculate dose, withdraw into a syringe, and give as a SUBCUT injection; discard unused portion, use ≤12 hr at room temperature, ≤24 hr when refrigerated

SIDE EFFECTS

CNS:
Seizures,
weakness, agitation, anxiety, chills, fever, confession, depression, dizziness, fatigue, headache, insomnia, lethargy, night sweats, tremor

CV:
Hypotension, peripheral edema,
sinus tachycardia

EENT:
Blurred vision, change in taste (dysgeusia)

GI:
Nausea, vomiting, diarrhea, abdominal pain, stomatitis

HEMA:
Neutropenia, leukopenia, thrombocytopenia, anemia, bleeding

INTEG:
Alopecia, rash, skin hyperpigmentation, stomatitis, skin ulcer, purpura, petechiae, pruritus

MISC:
Fever

MS:
Arthralgia, gout, myalgia, back pain

RESP:
Dyspnea, cough, rales, sinus congestion

SYST:
Infections

PHARMACOKINETICS

Protein binding ≤50%, half-life 6 hr, peak 30 min

INTERACTIONS

Increase:
Bleeding risk—anticoagulants, salicylates, NSAIDs, avoid use when platelets are <50,000 cells/mL

NURSING CONSIDERATIONS
Assess:

 

Black Box Warning:

CBC, differential, platelet count before treatment and weekly, during induction/maintenance, then every 2 wk as needed

 
Pregnancy D:
assess for pregnancy before starting treatment

 
Infection:
monitor temp every 4 hr; fever might indicate beginning of infection

• 
CV status: B/P, edema, flushing

• 
CNS changes: confusion, paresthesias, dysesthesia, pain, weakness

 
Hypersensitive reactions, anaphylaxis:
hypotension, dyspnea, angioedema, generalized urticaria; discontinue infusion immediately

 
Bone marrow depression/bleeding:
hematuria, guaiac, bruising or petechiae, mucosa or orifices every 8 hr; obtain prescription for viscous lidocaine (Xylocaine); avoid invasive procedures

• 
Effects of alopecia on body image; discuss feelings about body changes

• 
Diabetes mellitus:
avoid in poorly controlled disease, monitor blood glucose levels frequently

Evaluate:

• 
Therapeutic response: decreased CML, positive hematologic response

Teach patient/family:

• 
To report signs of infection: fever, sore throat, flulike symptoms

• 
To report signs of anemia: fatigue, headache, faintness, SOB, irritability

• 
To report bleeding; to avoid use of razors, commercial mouthwash

• 
To avoid use of aspirin, ibuprofen

• 
That hair may be lost during treatment; that a wig or hairpiece might make patient feel better; that new hair may be different in color and texture

• 
That pain in muscles and joints 2-5 days after infusion is common

 
To use barrier contraception during and for several mo after treatment, pregnancy (D); to avoid breastfeeding

• 
To avoid receiving vaccinations while taking product

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