Mosby's 2014 Nursing Drug Reference (228 page)

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

ketoconazole (topical)

(kee-toe-koe′na-zole)

Extina, Ketoderm
, Ketodan, Nizoral, Nizoral A-D, Xolegel

Func. class.:
Topical antifungal

Chem. class.:
Imidazole derivative

ACTION:

Antifungal activity results from altering cell membrane permeability

USES:

Seborrheic dermatitis (immunocompromised), tinea corporis, cruris, pedis, versicolor, dandruff

CONTRAINDICATIONS:

Hypersensitivity, sulfite allergy

Precautions:
Pregnancy (C), breastfeeding, children

DOSAGE AND ROUTES
Calculator
Seborrheic dermatitis:

• Adult/child

12 yr:
TOP FOAM
apply to affected areas bid × 4 wk

• 
GEL
apply to affected areas daily × 2 wk

Tinea corporis, cruris, pedis, versicolor

• Adult:
TOP
cover areas daily × 2 wk

Dandruff:

• Adult:
SHAMPOO
wet hair, lather, massage for 1 min, rinse, repeat 2×/wk spaced by 3 days, for up to 8 wk, then as needed

Available forms:
Topical gel, foam, cream 2%; shampoo 1%, 2%

Administer:
Topical route

• 
For external use only; do not use skin products near the eyes, nose, or mouth, wash hands before and after use

• 
Cream/lotion:
Apply to the cleansed affected area, massage gently into affected areas, do not use on skin that is broken or irritated

SIDE EFFECTS

INTEG:
Irritation, stinging, pustules, pruritus

NURSING CONSIDERATIONS
Assess allergic reaction:

• 
Assess for hypersensitivity, product might need to be discontinued

 
Assess for sulfate allergy; may be life threatening

Evaluate:

• 
Decreased itching scaling

Teach patient/family:
Topical route

• 
Topical skin products are not for intravaginal therapy and are for external use only; do not use skin products near the eyes, nose, or mouth, wash hands before and after use

• 
Cream/Ointment/Lotion:
Apply a thin film to the cleansed affected area, massage gently into affected areas

• 
Foam Formulations:
Do not dispense foam directly onto hands or face; the warmth of the skin will cause the foam to melt; instead, dispense desired amount directly into the cap or onto a cool surface; make sure enough foam is dispensed to cover the affected area(s); if the can feels warm or the foam seems runny, run the can under cold water; to apply, pick up small amounts of the foam with the fingertips and gently massage into the affected areas until the foam disappears

• 
To continue for prescribed time, tinea corporis/cruris ≥2 wk

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

ketoprofen (
OTC
, Rx)

(ke-toe-proe′fen)

Apo-Keto

Func. class.:
Nonsteroidal antiinflammatory product (NSAID), antirheumatic

Chem. class.:
Propionic acid derivative

ACTION:

Inhibits COX-1, COX-2; analgesic, antiinflammatory, antipyretic

USES:

Mild to moderate pain, osteoarthritis, rheumatoid arthritis, dysmenorrhea; OTC relief of minor aches, pains

Unlabeled uses:
Ankylosing spondylitis, bone pain, gouty arthritis

CONTRAINDICATIONS:

Pregnancy (D) 2nd/3rd trimester, hypersensitivity to this product, NSAIDs, salicylates; asthma, severe renal/hepatic disease, ulcer disease

 

Black Box Warning:

Perioperative pain with CABG

Precautions:
Pregnancy (B) 1st trimester, breastfeeding, children, geriatric patients, bleeding, GI/cardiac disorders, hypersensitivity to other antiinflammatory agents

 

Black Box Warning:

GI bleeding, MI, stroke

DOSAGE AND ROUTES
Calculator
Antiinflammatory

• Adult:
PO
50 mg qid or 75 mg tid, max 300 mg/day or
EXT REL
200 mg/day

Analgesic

• Adult:
PO
25-50 mg q6-8hr, max 300 mg/day

Available forms:
Caps 50, 75 mg; ext rel cap 200 mg

Administer:

• 
Do not break, crush, or chew ext rel caps

• 
Give 30 min before or 2 hr after meals, use full glass of water

SIDE EFFECTS

CNS:
Dizziness, drowsiness, fatigue, tremors, confusion, insomnia, anxiety, depression, headache

CV:
Tachycardia, peripheral edema, palpitations, dysrhythmias, hypertension,
CV thrombotic events, MI, stroke

EENT:
Tinnitus, hearing loss, blurred vision

GI:
Nausea, anorexia, vomiting, diarrhea,
jaundice,
hepatitis,
constipation, flatulence, cramps, dry mouth, peptic ulcer,
GI bleeding

GU:
Nephrotoxicity: dysuria, hematuria, oliguria, azotemia

HEMA:
Blood dyscrasias

INTEG:
Purpura, rash, pruritus, sweating

SYST:
Anaphylaxis

PHARMACOKINETICS

PO:
Peak 1.2 hr; ext rel 6.8 hr, half-life 2-4 hr; 5.4 hr ext rel, metabolized in liver, urine (metabolites), breast milk; 99% plasma protein binding

INTERACTIONS

Increase:
serotonin syndrome—SSRIs, SNRIs

Increase:
hypoglycemia—insulin, sulfonylureas

Increase:
toxicity—cycloSPORINE, lithium, methotrexate, phenytoin, alcohol

Increase:
bleeding risk—anticoagulants, clopidogrel, eptifibatide, plicamycin, thrombolytics, ticlopidine, tirofiban, valproic acid, SSRIs

Increase:
ketoprofen levels—aspirin, probenecid

Increase:
adverse GI reactions—aspirin, corticosteroids, NSAIDs, alcohol

Increase:
hematologic toxicity—radiation, antineoplastics

Decrease:
effect of diuretics, antihypertensives

Drug/Herb

Increase:
bleeding risk—feverfew, garlic, ginger, ginkgo

Drug/Lab Test

Increase:
BUN, alk phos, AST, ALT, LDH, creatinine, bleeding time

NURSING CONSIDERATIONS
Assess:

• 
Pain:
type, location, intensity, ROM before and 1-2 hr after treatment

• 
Renal, hepatic, blood studies: BUN, creatinine, AST, ALT, Hgb before treatment, periodically thereafter

 
Aspirin sensitivity, asthma; these patients may be more likely to develop hypersensitivity to NSAIDs

• 
Audiometric, ophthalmic exam before, during, after treatment

• 
For eye/ear problems: blurred vision, tinnitus; may indicate toxicity

 

Black Box Warning:

GI bleeding: blood in sputum, emesis, stools

 

Black Box Warning:

CV thrombotic events: MI, stroke

Perform/provide:

• 
Storage at room temp

Evaluate:

• 
Therapeutic response: decreased pain, stiffness, swelling in joints; ability to move more easily; decreased fever

Teach patient/family:

• 
To report blurred vision, ringing, roaring in ears; may indicate toxicity

• 
To avoid driving, other hazardous activities if dizziness, drowsiness occurs, especially in geriatric patients

• 
To report immediately change in urine pattern, increased weight, edema, increased pain in joints, fever, blood in urine (indicate nephrotoxicity); rash, itching, blurred vision, ringing in ears, flulike symptoms; blood in urine, vomit, or stools (bleeding)

• 
That therapeutic effects may take up to 1 mo; to take with 8 oz water; to sit upright for 1/2 hr after administration to prevent GI irritation, not to crush, chew ext rel products

• 
To avoid aspirin, alcohol, corticosteroids, acetaminophen, other medications, supplements unless approved by prescriber

• 
To wear sunscreen, protective clothing to prevent photosensitivity

• 
To report product use to all health care providers

• 
To report planned or suspected pregnancy (D) (2nd/3rd trimester), (C) (1st trimester); avoid breastfeeding

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