Mosby's 2014 Nursing Drug Reference (278 page)

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

moxifloxacin (ophthalmic)

(mocks-ih-floks′a-sin)

Vigamox, Moxeza

Func. class.:
Ophthalmic anti-infective

Chem. class.:
Fluoroquinolone

Do not confuse:
ciprofloxacin
/gatifloxacin/levofloxacin

ACTION:

Inhibits DNA gyrase, thereby decreasing bacterial replication

USES:

Bacterial conjunctivitis (aerobic gram-positive/negative organisms),
Chlamydia trachomatis

CONTRAINDICATIONS:

Hypersensitivity to this product or fluoroquinolones

Precautions:
Pregnancy (C), breastfeeding

DOSAGE AND ROUTES
Calculator
Bacterial conjunctivitis

• Adult/adolescent/child

1 yr:
Ophthalmic SOL
1 drop in affected eye(s) bid (Moxeza) or tid (Vigamox) × 7 days

Available forms:
Ophthalmic solution 0.5%

Administer:
Ophthalmic route

• 
Commercially available ophthalmic solutions are not for injection subconjunctivally or into the anterior chamber of the eye

• 
Apply topically to the eye, taking care to avoid contamination

• 
Do not touch the tip of the dropper to the eye, fingertips, or other surface

• 
Apply pressure to lacrimal sac for 1 min after instillation

• 
Avoid wearing contact lenses during treatment

SIDE EFFECTS

EENT:
Hypersensitivity, pruritus, blurred vision, tearing

PHARMACOKINETICS

Half-life 13 hr

NURSING CONSIDERATIONS
Assess:

• 
Allergic reaction
: Assess for hypersensitivity, discontinue product

Evaluate:

• 
Decreased ophthalmic infection

Teach patient/family:
Ophthalmic route

• 
To apply topically to the eye, taking care to avoid contamination

• 
That product is for ophthalmic use only

• 
Not to touch the tip of the dropper to the eye, fingertips, or other surface

• 
To apply pressure to lacrimal sac for 1 min after installation

• 
To avoid wearing contact lenses during treatment

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

mupirocin (topical, nasal)

(myoo-pihr′oh-sin)

Bactroban, Centany

Func. class.:
Topical anti-infective

ACTION:

Antibacterial activity results from inhibition of protein synthesis; bacteriostatic

USES:

Impetigo, skin lesions
(Staphylococcus aureus/Streptococcus pyogenes);
nasal: methicillin-resistant
S. aureus

CONTRAINDICATIONS:

Hypersensitivity to this product

Precautions:
Open wounds, burns, severe kidney disease, children

DOSAGE AND ROUTES
Calculator
Impetigo

• Adult/child:
TOP
apply to affected area tid × 1-2 wk

Skin lesions

• Adult/child:
TOP
apply to affected area tid × 10 days

Methicillin-resistant
s. aureus
in the nose

• Adult/child ≥12 yr:
NASAL
divide ointment in single use tube in half; use in each nostril bid × 5 days

Available forms:
Topical cream, ointment 2%; intranasal ointment 2%

Administer:
Topical route

• 
Do not use skin products near the eyes, nose, or mouth

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

• 
May cover treated areas with gauze dressing

Cream/ointment

• 
Apply a thin film to the cleansed affected area; massage gently into affected areas

• 
Nasal:
Close nostrils by squeezing and releasing and gently massaging over 1 min

SIDE EFFECTS

CNS:
Headache

EENT:
Burning, rhinitis (nasal)

GI:
Taste change

INTEG:
Burning, rash, pruritus

INTERACTIONS

Decrease:
Effect of other nasal products

NURSING CONSIDERATIONS
Assess:

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

• 
Infection
: Assess for number of lesions, severity in impetigo, other skin disorders

Evaluate:

• 
Decreased lesions in impetigo, other skin disorders

Teach patient/family:
Topical route

• 
Not to use skin products near the eyes, nose, or mouth

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

• 
Cream/Ointment:
To apply a thin film to the cleansed affected area; to cover treated areas with gauze dressing if desired

• 
Nasal:
To close nostrils by squeezing and releasing and gently massaging over 1 min

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

mycophenolate mofetil (Rx)

(mye-koe-phen′oh-late)

CellCept, Myfortic

Func. class.:
Immunosuppressant

ACTION:

Inhibits inflammatory responses that are mediated by the immune system

USES:

Prophylaxis for organ rejection in allogenic cardiac, hepatic, renal transplants

Unlabeled uses:
Refractory uveitis, second-line therapy for Churg-Strauss syndrome, diffuse proliferative lupus nephritis (in combination), rheumatoid arthritis, psoriasis, GVHD, kidney disease, myasthenia gravis, atopic dermatitis

CONTRAINDICATIONS:

Hypersensitivity to this product or mycophenolic acid

 

Black Box Warning:

Pregnancy (D)

Precautions:
Breastfeeding, lymphomas, neutropenia, renal disease, accidental exposure, anemia

 

Black Box Warning:

Infection, neoplastic disease

DOSAGE AND ROUTES
Calculator
Renal transplant to prevent organ rejection

• Adult:
PO
mycophenolate mofetil 1 g or 720 mg mycophenolate sodium; 1 g or 720 mg bid given to renal transplant patients in combination with corticosteroids, cycloSPORINE

• Child:
PO-ER
400 mg/m
2
bid, max 720 mg bid

Renal dose

• Adult:
PO/IV
GFR <25 ml/min, max 2 g/day

Cardiac transplant to prevent organ rejection

• Adult:
PO/IV
1.5 g bid,
IV
can be started ≤24 hr after transplant, switch to
PO
when able

Hepatic transplant to prevent organ rejection

• Adult:
PO
1.5 g bid;
IV
1 g over ≥2 hr

Refractory acute kidney transplant rejection (unlabeled)

• Adult:
PO
1.5 g (Mofetil) bid

Rheumatoid arthritis (unlabeled)

• Adult:
PO
250 mg-2 g/day (Mofetil)

GVHD (unlabeled)

• Adult:
PO
2 g/day (Mofetil) with cycloSPORINE and prednisoLONE

Diffuse proliferative lupus nephritis (unlabeled)

• Adult:
PO
1 g/day (Mofetil)

Uveitis (unlabeled)

• Adult:
PO
1 g (Mofetil) bid × 6-41 mo

Atopic dermatitis (unlabeled)

• Adult:
PO
1 g (Mofetil) bid × 4 wk, then 500 mg bid × 4 wk

• Adolescent/child ≥2 yr:
PO
30-50 mg/kg/day (Mofetil) in 2 divided doses

Available forms:
Caps 250 mg; tabs 500 mg; inj (powder) 500 mg/20-ml vial; powder for oral susp 200 mg/ml; ext rel tab (Myfortic) 180, 360 mg

Administer:

• 
May be given in combination with corticosteroids, cycloSPORINE

• 
Del rel tab, cap, oral susp, tab are not interchangeable

PO route

• 
Do not break, crush, or chew tabs; do not open caps

• 
Give at same time each day

• 
Avoid inhalation or direct contact with skin, mucous membranes; teratogenic in animals

• 
Oral susp:
tap closed bottle several times to loosen powder, use 94 ml of water in graduated cylinder, add 1/2 total amount of water for constitution and shake the closed bottle, add remaining
water and shake; again, remove child-resistant cap, push adapter into neck of bottle, close tightly

• 
Give alone for better absorption

Intermittent IV INF route

• 
Reconstitute each vial with 14 ml D
5
W, shake gently, further dilute to 6 mg/ml, dilute 1 g/140 ml D
5
W, 1.5 g/210 ml D
5
W; give by slow IV inf ≥2 hr, never give by bolus or rapid IV inj

• 
Do not give with other medications or sol

Y-site compatibilities:
Alemtuzumab, alfentanil, amikacin, anidulafungin, argatroban, bivalirudin, caspofungin, cefepime, DAPTOmycin, DOPamine, norepinephrine, octreotide, oxytocin, tacrolimus, tigecycline, tirofiban, vancomycin

SIDE EFFECTS

CNS:
Tremor, dizziness, insomnia, headache, fever
, anxiety, pain,
progressive multifocal leukoencephalopathy,
asthenia, paresthesia

CV:
Hypertension, chest pain
, hypotension, edema

GI:
Diarrhea, constipation, nausea, vomiting
, stomatitis,
GI bleeding,
abdominal pain, anorexia, dyspepsia

GU:
UTI, hematuria
,
renal tubular necrosis, polyomavirus-associated nephropathy

HEMA:
Leukopenia, thrombocytopenia, anemia, pancytopenia, pure red cell aplasia,
neutropenia

INTEG:
Rash

META:
Peripheral edema, hypercholesterolemia, hypophosphatemia, edema, hyperkalemia, hypokalemia, hyperglycemia
, hypocalcemia, hypomagnesemia

MS:
Arthralgia, muscle wasting, back pain, weakness

RESP:
Dyspnea, respiratory infection, increased cough, pharyngitis, bronchitis, pneumonia
,
plural effusion, pulmonary fibrosis

SYST:
Lymphoma,
nonmelanoma skin carcinoma
,
sepsis

PHARMACOKINETICS

Rapidly and completely absorbed; metabolized to active metabolite (MPA); excreted in urine, feces; protein binding (MPA) 97%; half-life (MPA) 17.9 hr

INTERACTIONS

Increase:
bone marrow suppression—azaTHIOprine

• 
Increased bleeding risk: anticoagulants, NSAIDs, thrombolytics, salicylates

Increase:
toxicity—acyclovir, ganciclovir, valacyclovir

Increase:
effects of phenytoin, theophylline

Increase:
mycophenolate levels—probenecid, immunosuppressives, salicylates

Decrease:
mycophenolate levels—antacids (magnesium, aluminum), cholestyramine, cycloSPORINE, rifamycin

Decrease:
protein binding of phenytoin, theophylline

Decrease:
effect of live attenuated vaccines, oral contraceptives

Drug/Herb

Interference with immunosuppression: astragalus, echinacea, melatonin

Drug/Food

Decrease:
absorption if taken with food

Drug/Lab Test

Increase:
serum creatitine, BUN

• 
Abnormal LFTs

NURSING CONSIDERATIONS
Assess:

 
Progressive multifocal leukoencephalopathy,
may be fatal; ataxia, confusion, apathy, hemiparesis, visual problems, weakness; side effects should be reported to FDA

• 
Blood studies: CBC during treatment monthly

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

• 
Renal studies: BUN, CCr, electrolytes

 

Black Box Warning:

Pregnancy test within 1 wk before initiation of treatment; confirm negative pregnancy test

Evaluate:

• 
Therapeutic response: absence of graft rejection

Teach patient/family:

• 
To report fever, rash, severe diarrhea, chills, sore throat, fatigue because serious infections may occur

• 
To reduce risk of infection by avoiding crowds

• 
About the need for repeated lab tests

 

Black Box Warning:

To use 2 forms of contraception before, during, and for 6 wk after therapy

• 
To take at same time each day

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

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