Mosby's 2014 Nursing Drug Reference (268 page)

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

metroNIDAZOLE (topical, vaginal)

(met-roe-ni′da-zole)

MetroCream, MetroGel, MetroGel Vaginal, MetroLotion, Noritate, Rosasol
, Rosadan, Vandazole

Func. class.:
Antiprotozoal, antibacterial

Chem. class.:
Nitroimidazole

ACTION:

Antibacterial and antiprotozoal activity may result from interacting with DNA

USES:

Acne rosacea, bacterial vaginosis

CONTRAINDICATIONS:

Hypersensitivity to this product or nitroimidazoles, parabens

Precautions:
Hepatic disease, blood dyscrasias; CNS conditions (vaginal), children

DOSAGE AND ROUTES
Calculator
Acne rosacea

• Adult:
TOP
apply to affected areas bid (0.75%) daily (1%); adjust therapy based on response

Bacterial vaginosis

• Adult:
VAG
1 applicatorful bid × 5 days

Available forms:
Topical cream 0.75%, 1%; gel 0.75%, 1%; lotion 0.75%; vaginal gel 0.75%

Administer:
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; wash affected area and gently pat dry

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

Intravaginal route

• 
Only use dosage formulations specified for intravaginal use; intravaginal dosage forms are not for topical therapy; do not ingest

• 
Avoid vaginal intercourse during treatment

• 
Cream:
Use applicator(s) supplied by the manufacturer

SIDE EFFECTS

GU:
Vaginitis, cervicitis; nausea, vomiting, cramping

INTEG:
Redness, burning, dermatitis, rash, pruritus

INTERACTIONS

• 
MetroNIDAZOLE may increase warfarin anticoagulant effect

• 
Caution with drinking alcohol or using disulfiram while using metroNIDAZOLE products(vaginal gel)

• 
Possible lithium toxicity (vaginal gel)

NURSING CONSIDERATIONS
Assess:

• 
Allergic reaction
: Assess for hypersensitivity, product may need to be discontinued

• 
Infection
: Assess for number of lesions and severity of acne rosacea, itching in vaginosis

Evaluate:

• 
Decreased severity of acne rosacea, infection in vaginosis

Teach patient/family:

• 
That topical skin products are not for intravaginal therapy and are for external use only; not to use skin products near the eyes, nose, or mouth

• 
To wash hands before and after use; to wash affected area and gently pat dry

• 
Cream/Gel/Lotion:
To apply a thin film to the cleansed affected area and massage gently into affected areas

• 
Intravaginal Route:
To use only dosage formulations specified for intravaginal use; not to ingest intravaginal dosage forms because these are not for topical therapy; to avoid vaginal intercourse during treatment

• 
Cream:
To use applicator(s) supplied by the manufacturer

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

micafungin (Rx)

(my-ca-fun′gin)

Mycamine

Func. class.:
Antifungal, systemic

Chem. class.:
Echinocandin

ACTION:

Inhibits an essential component of fungal cell walls; causes direct damage to fungal cell wall

USES:

Treatment of esophageal candidiasis; prophylaxis for
Candida
infections in patients undergoing hematopoietic stem-cell transplantation (HSCT); susceptible
Candida
sp.:
C. albicans, C. glabrata, C. krusei, C. parapsilosis, C. tropicalis

Unlabeled uses:
Aspergillus
sp., pediatrics to prevent candidiasis, endocarditis, endophthalmitis, infectious arthritis, myocarditis, osteomyelitis, pericarditis, pneumonia, sinusitis, tracheobronchitis, prophylaxis of HIV-related esophageal candidiasis

CONTRAINDICATIONS:

Hypersensitivity to this product or other echinocandins

Precautions:
Pregnancy (C), breastfeeding, children, geriatric patients, severe hepatic disease, renal impairment

DOSAGE AND ROUTES
Calculator
Esophageal candidiasis

• Adult:
IV INF
150 mg/day given over 1 hr

Candidemia/acute disseminated candidiasis, abscess/peritonitis

• Adult:
IV
100 mg/day over 1 hr

Prophylaxis for
candida
infections

• Adult:
IV INF
50 mg/day given over 1 hr

• Adolescent/child/infant ≥6 mo (unlabeled):
IV INF
1 mg/kg/day, max 50 mg/day

Aspergillus
sp. (unlabeled)

• Adult:
IV INF
25-150 mg/day × ≥30 days

Available forms:
Powder for inj 50 mg, in single-dose vials 50-, 100-mg vial

Administer:

• 
Do not use if cloudy or precipitated; do not admix; by IV inf only

IV route

• 
Flush line before and after use with 0.9% NaCl

• 
For
Candida
prevention,
reconstitute with provided dilutent 0.9% NaCl without bacteriostatic product; 50-mg vial/5 ml (10 mg/ml), swirl to dissolve, do not shake; further dilute with 100 ml 0.9% NaCl only; run over 1 hr

• 
For
Candida
infection:
reconstitute with provided diluent 50 mg/5 ml (10 mg/ml); further dilute 3 reconstituted vials in 100 ml 0.9% NaCl, run over 1 hr

Y-site compatibilities:
Aminophylline, bumetanide, calcium chloride/gluconate, cycloSPORINE, DOPamine, eptifibatide, esmolol, fenoldopam, furosemide, heparin, HYDROmorphone, lidocaine, LORazepam, magnesium sulfate, milrinone, nitroglycerin, nitroprusside, norepinephrine, phenylephrine, potassium chloride, potassium phosphate, tacrolimus, vasopressin

SIDE EFFECTS

CNS:
Seizures,
dizziness,
headache, somnolence
, fever, anxiety

CV:
Flushing, hypertension, phlebitis, tachycardia

GI:
Abdominal pain,
nausea, anorexia, vomiting, diarrhea, increased AST, ALT, alk phos, blood dehydrogenase, hyperbilirubinemia

HEMA:
Neutropenia, thrombocytopenia, leukopenia, coagulopathy, anemia, hemolytic anemia

INTEG:
Rash, pruritus, inj site pain

META:
Hypokalemia, hypocalcemia, hypomagnesemia

MS:
Rigors

PHARMACOKINETICS

Metabolized in liver; excreted in feces, urine; terminal half-life 14-17.2 hr; protein binding 99%

INTERACTIONS

Increase:
plasma concentrations—itraconazole, sirolimus, NIFEdipine; may need dosage reduction

NURSING CONSIDERATIONS
Assess:

• 
Infection,
clearing of cultures during treatment; obtain culture at baseline and during treatment; product may be started as soon as culture is taken (esophageal candidiasis); monitor cultures during HSCT for prevention of
Candida
infections

• 
CBC (RBC, Hct, Hgb), differential, platelet count periodically; notify prescriber of results

• 
Renal studies: BUN, urine CCr, electrolytes before and during therapy

• 
Hepatic studies before and during treatment: bilirubin, AST, ALT, alk phos as needed

• 
Bleeding:
hematuria, heme-positive stools, bruising, or petechiae, mucosa or orifices; blood dyscrasias can occur

• 
For hypersensitivity:
rash, pruritus, facial swelling, phlebitis

• 
For hemolytic anemia

• 
GI symptoms:
frequency of stools, cramping; if severe diarrhea occurs, electrolytes may need to be given

Perform/provide:

• 
Storage at room temp, away from light, do not freeze; discard unused sol

Evaluate:

• 
Therapeutic response: prevention of
Candida
infection with HSCT or decreased symptoms of
Candida
infection, negative culture

Teach patient/family:

• 
To notify prescriber if pregnancy is suspected or planned

• 
To avoid breastfeeding while taking this product

• 
To inform prescriber of kidney or liver disease

• 
To report bleeding, facial swelling, wheezing, difficulty breathing, itching, rash, hives, increasing warmth, flushing

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

• 
To notify prescriber of nausea, vomiting, diarrhea, jaundice, anorexia, clay-colored stools, dark urine; heptatotoxicity may occur

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