Mosby's 2014 Nursing Drug Reference (409 page)

BOOK: Mosby's 2014 Nursing Drug Reference
7.18Mb size Format: txt, pdf, ePub
triamcinolone (topical-oral) (
OTC
)

(trye-am-sin′oh-lone)

Kenalog in Orabase, Oralone Dental

Func. class.:
Topical anesthetic

Chem. class.:
Synthetic fluorinated adrenal corticosteroid

ACTION:

Binds with steroid receptors, decreases inflammation

USES:

Oral pain

CONTRAINDICATIONS:

Infants <1 yr, hypersensitivity, application to large areas; presence of fungal, viral, or bacterial infections of mouth or throat

Precautions:
Pregnancy (C), children <6 yr, sepsis, denuded skin

DOSAGE AND ROUTES
Calculator

• Adult and child:
TOP
Press 1/4 inch into affected area until film appears, repeat bid-tid

Available forms:
Paste 0.1%

Administer:

• 
After cleansing oral cavity after meals

SIDE EFFECTS

INTEG:
Rash, irritation, sensitization

NURSING CONSIDERATIONS
Assess:

• 
Allergy: rash, irritation, reddening, swelling

• 
Infection: if affected area is infected, do not apply

Evaluate:

• 
Therapeutic response: absence of pain in affected area

Teach patient/family:

• 
To report rash, irritation, redness, swelling

• 
How to apply paste

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

triazolam (Rx)

(trye-ay′zoe-lam)

Apo-Triazo
, Halcion

Func. class.:
Sedative-hypnotic, antianxiety

Chem. class.:
Benzodiazepine, short acting

 

Controlled Substance Schedule IV (USA), Targeted (CDSA IV) (Canada)

Do not confuse:
Halcion
/Haldol/halcinonide

ACTION:

Produces CNS depression at limbic, thalamic, hypothalamic levels of CNS; may be mediated by neurotransmitter γ-aminobutyric acid (GABA); results are sedation, hypnosis, skeletal muscle relaxation, anticonvulsant activity, anxiolytic action

USES:

Insomnia, sedative/hypnotic

CONTRAINDICATIONS:

Pregnancy (X), breastfeeding, hypersensitivity to benzodiazepines, intermittent porphyria

Precautions:
Children <15 yr, geriatric patients, anemia, renal/hepatic disease, suicidal individuals, drug abuse, psychosis, acute closed-angle glaucoma, seizure disorders, angioedema, respiratory disease, depression, sleep-related behaviors (sleep walking)

DOSAGE AND ROUTES
Calculator

• Adult:
PO
0.125-0.5 mg at bedtime, max 0.5 mg/day

• Geriatric:
PO
0.0625-0.125 mg at bedtime, max 0.25 mg/day

Available forms:
Tabs 0.125, 0.25 mg

Administer:

• 
After trying conservative measures for insomnia

• 
1/2 hr before bedtime for sleeplessness

• 
On empty stomach for fast onset; may be taken with food if GI symptoms occur

• 
Avoid use with CNS depressants; serious CNS depression may result

SIDE EFFECTS

CNS:
Headache, lethargy, drowsiness, daytime sedation
, dizziness, confusion, lightheadedness, anxiety, irritability, amnesia, poor coordination,
complex sleep-related reactions: sleep driving, sleep eating

CV:
Chest pain, pulse changes

GI:
Nausea, vomiting, diarrhea, heartburn, abdominal pain, constipation,
hepatic injury

SYST:
Severe allergic reactions

PHARMACOKINETICS

Onset 30-45 min, duration 6-8 hr, metabolized by liver, excreted by kidneys (inactive metabolites), crosses placenta, excreted in breast milk, half-life 2-3 hr

INTERACTIONS

• 
Smoking may decrease hypnotic effect

Increase:
triazolam levels—CYP3A4 inhibitors, protease inhibitors

 
Increase:
effects of cimetidine, disulfiram, erythromycin, clarithromycin, probenecid, isoniazid, oral contraceptives; do not use concurrently

Increase:
action of both products—alcohol, CNS depressants

Decrease:
effect of antacids, theophylline, rifampin, smoking

Drug/Herb

Increase:
CNS depression—chamomile, hops, kava, lavender, valerian

Drug/Food

• 
Grapefruit may increase action, avoid concurrent use

Drug/Lab Test

Increase:
ALT, AST, serum bilirubin

Decrease:
RAI uptake

False increase:
urinary 17-OHCS

NURSING CONSIDERATIONS
Assess:

• 
Blood studies: Hct, Hgb, RBC if blood dyscrasias suspected (rare)

• 
Hepatic studies: AST, ALT, bilirubin if hepatic damage has occurred

• 
Mental status: mood, sensorium, affect, memory (long, short term), insomnia, withdrawal symptoms, excessive sedation, impaired coordination

• 
Blood dyscrasias: fever, sore throat, bruising, rash, jaundice, epistaxis (rare)

• 
Type of sleep problem: falling asleep, staying asleep

Perform/provide:

• 
Assistance with ambulation after receiving dose

• 
Cool storage in tight container

Evaluate:

• 
Therapeutic response: ability to sleep at night, decreased amount of early morning awakening if taking product for insomnia

Teach patient/family:

• 
To use reliable contraception; pregnancy category (X)

• 
That dependence is possible after long-term use

• 
To avoid driving, other activities requiring alertness until product is stabilized

• 
To avoid alcohol ingestion

• 
That effects may take 2 nights for benefits to be noticed; that product is for short-term use only; to use for 7-10 continuous nights

• 
About alternative measures to improve sleep: reading, exercise several hours before bedtime, warm bath, warm milk, TV, self-hypnosis, deep breathing

• 
That complex sleep-related behaviors (sleep eating/driving) may occur

• 
That hangover common in geriatric patients but less common than with barbiturates; that rebound insomnia may occur for 1-2 nights after discontinuing product; to discontinue by decreasing dose by 50% q2 nights until 0.125 mg for 2 nights, then stop

TREATMENT OF OVERDOSE:

Lavage, activated charcoal; monitor electrolytes, VS

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

trifluridine ophthalmic

 

trimethobenzamide (Rx)

(trye-meth-oh-ben′za-mide)

Tigan

Func. class.:
Antiemetic, anticholinergic

Chem. class.:
Ethanolamine derivative

ACTION:

Acts centrally by blocking chemoreceptor trigger zone, which in turn acts on vomiting center

USES:

Nausea, vomiting

CONTRAINDICATIONS:

Children (parenterally), hypersensitivity to opioids, shock

Precautions:
Pregnancy (C), children, geriatric patients, cardiac dysrhythmias, acute febrile illness, encephalitis, gastroenteritis, dehydration, electrolyte imbalances, Reye’s syndrome

DOSAGE AND ROUTES
Calculator
Nausea/vomiting

• Adult:
IM
200 mg 3-4×/day;
PO
300 mg 3-4×/day

Postoperative

• Adult:
IM
200 mg followed by 2nd dose 1 hr later

Renal dose

• Adult:
IM
CCr 15-30 ml/min, give 50% of dose

Available forms:
Caps 300 mg; inj 100 mg/ml

Administer:
PO route

• 
Capsules may be swallowed whole, chewed, allowed to dissolve

IM route

• 
Inj in large muscle mass; aspirate to avoid IV administration; inj not to be used in children or infants

Syringe compatibilities:
Butorphanol, glycopyrrolate, HYDROmorphone, midazolam, nalbuphine

SIDE EFFECTS

CNS:
Drowsiness
, headache, dizziness, confusion, disorientation,
coma, seizures,
depression,
vertigo
, EPS

CV:
Hypo/hypertension, palpitation,
cardiac dysrhythmias

EENT:
Dry mouth, blurred vision, photosensitivity

GI:
Nausea, diarrhea, vomiting, difficulty swallowing

INTEG:
Rash, urticaria, fever, chills, flushing, hyperpyrexia

PHARMACOKINETICS

Metabolized by liver, excreted by kidneys

PO:
Onset 20-40 min, duration 3-4 hr

IM:
Onset 15-35 min, duration 2-3 hr

INTERACTIONS

Increase:
effect—CNS depressants, alcohol

NURSING CONSIDERATIONS
Assess:

• 
Nausea, vomiting before, after treatment

• 
VS, B/P; check patients with cardiac disease more often

• 
Signs of toxicity of other products or masking of symptoms of disease: brain tumor, intestinal obstruction

• 
Observe for drowsiness, dizziness

Evaluate:

• 
Therapeutic response: decreased nausea, vomiting

Teach patient/family:

• 
To avoid hazardous activities, activities requiring alertness because dizziness may occur; to request assistance with ambulation

• 
To avoid alcohol, other depressants

• 
To keep out of children’s reach

Other books

Unfallen Dead by Mark Del Franco
The Dead Girls' Dance by Rachel Caine
Chanur's Legacy by C. J. Cherryh
Burned by Dean Murray
Taken by Bolton, Karice
Pit Bulls vs Aliens by Neal Wooten