Mosby's 2014 Nursing Drug Reference (326 page)

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

pramlintide (Rx)

(pram′lin-tide)

Symlin

Func. class.:
Antidiabetic

Chem. class.:
Synthetic human amylin analog

ACTION:

Modulates and slows stomach emptying, prevents postprandial rise in plasma glucagon, decreases appetite, leads to decreased caloric intake and weight loss

USES:

As an adjunct to insulin therapy for uncontrolled type 1 or type 2 diabetes

CONTRAINDICATIONS:

Hypersensitivity to this product or cresol; gastroparesis

 

Black Box Warning:

Hypoglycemia

Precautions:
Pregnancy (C), breastfeeding

DOSAGE AND ROUTES
Calculator
Type 1 diabetes

• Adult:
SUBCUT
before each meal (≥30 g carbohydrate), titrate up in 15-mcg increments to target dose of 60 mcg/dose; each dose titration should occur after no nausea for 3 days

Type 2 diabetes

• Adult:
SUBCUT
60 mcg prior to each meal (≥30 g CHO), titrate up to 120 mcg
SUBCUT
with each meal after no nausea for 3-7 days

Available forms:
Inj 5-ml vials (0.6 mg/ml)

Administer:

• 
Premeal insulin should be decreased by 50% when starting and adjusted to therapeutic dose to prevent hypoglycemia

SUBCUT route

• 
Rotate injection sites, allow solution to warm to room temperature before use

• 
Take immediately before mealtime or if 30 g of carbohydrates will be consumed

• 
Do not use if a meal is skipped

• 
Do not use if discolored; do not give in arm; absorption is variable

Syringe compatibilities:
Do not mix with insulin; give separately

SIDE EFFECTS

CNS:
Headache
, fatigue, dizziness

GI:
Nausea, vomiting, anorexia
, abdominal pain

INTEG:
Inj site reactions

META:
Hypoglycemia

MS:
Arthralgia

RESP:
Cough
, pharyngitis

SYST:
Systemic allergy

PHARMACOKINETICS

Bioavailability 30%-40%, not extensively bound to blood cells or albumin, 40% bound in plasma, half-life 48 min, me
tabolized by kidneys, peak 20 min, duration 3 hr

INTERACTIONS

• Do not use with erythromycin, metoclopramide

Increase:
effect of acetaminophen

Increase:
pramlintide action—antimuscarinics, α-glucosidase inhibitors, diphenoxylate, loperamide, octreotide, opiate agonist, tricyclics

Increase:
hypoglycemia—ACE inhibitors, disopyramide, anabolic steroids, androgens, fibric acid derivatives, alcohol, corticosteroids, insulin

Increase:
hyperglycemia—phenothiazines

Decrease:
hypoglycemia—niacin, dextrothyroxine, thiazide diuretics, triamterene, estrogens, progestins, oral contraceptives, MAOIs

NURSING CONSIDERATIONS
Assess:

• 
Fasting blood glucose, 2 hr post-prandiol (80-150 mg/dl, normal fasting level; 70-130 mg/dl, normal 2 hr level); A1c may also be drawn to identify treatment effectiveness; also monitor weight, appetite

• 
Hypoglycemic reaction
sweating; weakness; dizziness; chills; confusion; headache; nausea; rapid, weak pulse; fatigue; tachycardia; memory lapses; slurred speech; staggering gait; anxiety; tremors; hunger

• 
Hyperglycemia:
acetone breath; polyuria; fatigue; polydipsia; flushed, dry skin; lethargy

Perform/provide:

• 
Storage at room temp for ≤30 days; keep away from heat and sunlight; refrigerate all other supply

Evaluate:

• 
Therapeutic response: decrease in polyuria, polydipsia, polyphagia; clear sensorium; absence of dizziness; stable gait; improving blood glucose, A1c

Teach patient/family:

• 
That product does not cure diabetes but rather controls symptoms

• 
To carry emergency ID as diabetic

• 
To recognize hypoglycemia reaction: headache, fatigue, weakness

• 
About the dosage, route, mixing instructions, diet restrictions, disease process

• 
To carry a glucose source (candy or lump sugar) to treat hypoglycemia

• 
About the symptoms of ketoacidosis: nausea; thirst; polyuria; dry mouth; decreased B/P; dry, flushed skin; acetone breath; drowsiness; Kussmaul respirations

• 
That a plan is necessary for diet, exercise; that all food on diet should be eaten; that exercise routine should not vary

• 
About blood glucose testing; how to determine glucose level

• 
To avoid OTC products, alcohol unless directed by prescriber

• 
Not to operate machinery or drive until effect is known

• 
About how to use pen

TREATMENT OF OVERDOSE:

Glucose 25 g IV or 50 ml dextrose 50% sol or 1 mg glucagon SUBCUT

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

pramoxine topical

 

prasugrel (Rx)

(pra′soo-grel)

Effient

Func. class.:
Platelet aggregation inhibitor

Chem. class.:
ADP receptor antagonist

ACTION:

Inhibits ADP-induced platelet aggregation

USES:

Reducing the risk of stroke, MI, vascular death, peripheral arterial disease in high-risk patients

CONTRAINDICATIONS:

Hypersensitivity, stroke, TIA

 

Black Box Warning:

Active bleeding

Precautions:
Pregnancy (B), breastfeeding, children, geriatric patients, hepatic disease, increased bleeding risk, neutropenia, agranulocytosis, renal disease, surgery, trauma, thrombotic thrombocytopenic purpura, Asian patients, weight <60 kg, CABG, abrupt discontinuation

DOSAGE AND ROUTES
Calculator

• Adult/geriatric
<
75 yr and

60 kg:
PO
60-mg loading dose then 10 mg daily with aspirin (75-325 mg/day)

• Adult/geriatric
<
75 yr and
<
60 kg:
PO
60 mg loading dose then 5 mg daily

• Geriatric
>
75 yr:
not recommended

Available forms:
Tabs 5, 10 mg

Administer:

• 
With food to decrease gastric symptoms

• 
Do not break tablets

• 
Do not discontinue therapy abruptly

SIDE EFFECTS

CNS:
Headache, dizziness

CV:
Edema, atrial fibrillation, bradycardia, chest pain, hypo/hypertension

GI:
Nausea, vomiting, diarrhea

HEMA:
Epistaxis,
leukopenia, thrombocytopenia, neutropenia, anaphylaxis, angioedema, anemia

INTEG:
Rash, hypercholesterolemia

MISC:
Fatigue,
intracranial hemorrhage, secondary malignancy, angioedema

MS:
Back pain

PHARMACOKINETICS

Rapidly absorbed; peak 30 min; metabolized by liver (CYP3A4; CYP2B6); excreted in urine, feces; half-life 7 hr

INTERACTIONS

Increase:
bleeding risk—anticoagulants, aspirin, NSAIDs, abciximab, eptifibatide, tirofiban, thrombolytics, ticlopidine, SSRIs, treprostinil, rifampin

NURSING CONSIDERATIONS
Assess:

 
Thrombotic/thrombocytic purpura:
fever, thrombocytopenia, neurolytic anemia

• Hepatic studies: AST, ALT, bilirubin, creatinine with long-term therapy

• 
Blood studies: CBC, differential, Hct, Hgb, PT, cholesterol with long-term therapy

 

Black Box Warning:

Bleeding:
may be fatal, decreased B/P in those who have had CABG may be the first indication; bleeding should be controlled while continuing product; may use transfusion; do not use within 1 wk of CABG; may use lower doses in those <60 kg

Evaluate:

• 
Therapeutic response: absence of stroke, MI

Teach patient/family:

• 
That blood work will be necessary during treatment

• 
To report any unusual bruising, bleeding to prescriber; that it may take longer to stop bleeding

• 
To take with food or just after eating to minimize GI discomfort

• 
To report diarrhea, skin rashes, subcutaneous bleeding, chills, fever, sore throat

• 
To tell all health care providers that prasugrel is being used; that product may be held before surgery

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