Pharmacology Flashcards
aluminum hydroxide gel (Amphojel)
Antacid medication
Contains sodium; check if client is on sodium-restricted diet
levothyroxine sodium (Synthroid)
A thyroid replacement medication
Take in morning to prevent insomnia
Antacid medications
Neutralize gastric acids
Uses: peptic ulcer, indigestion, reflex esophagitis.
Side effects: constipation, diarrhea, acid rebound.
Taken several times per day to be effective.
Most effective when taken after digestion has begun but before stomach has emptied.
Interferes with absorption of antibiotics, iron preps, INH, oral contraceptives.
Monitor bowel function.
chlordiazepoxide (Librium)
benzodiazepine derivative (antianxiety agent)
Side effects: lethargy, hangover, respiratory depression, hypotension
Antianxiety medications
Classes:
- benzodiazepine derivatives (many end in “pam”
- nonbenzodiazepine antianxiety agents
- herbals
Action: Affect neurotransmitters
Uses: anxiety disorders, manic episodes, panic attacks
Side effects: sedation, confusion, hepatic dysfunction
Nursing considerations:
- potential for addiction/overdose
- avoid alcohol
- monitor liver function
Antivirals
Action - inhibits DNA and RNA replication
Uses - recurrent HSV, HIV infection
Side effects - headache, dizziness, GI symptoms
Nursing considerations
- Encourage fluids - Not a cure, but relieves symptoms
Attention Disorder Agents
Action - increases level of catecholamines
Uses - ADD, narcolepsy
Side effects - restlessness, insomnia, tachycardia, palpitations
Nursing considerations
- Monitor growth rate - Monitor liver enzymes - Give in a.m.
Bone-reabsorption inhibitors
Action - Inhibits resorption of bone
Uses - Osteoporosis, Paget’s disease
Side effects: esophagitis, arthralgia
Nursing considerations
- Instruct clients to remain in upright
position for 30 minutes
Bronchodilators
Action - decreases activity of phosphodiesterase
Uses - COPD, preterm labor (Terbatuline)
Side effects - tachycardia, dysrhythmias, palpitations, anticholinergic effects
Nursing considerations - Monitor BP and heart rate - When used with steroid inhaler, use bronchodilator first - May aggravate diabetes
Carbonic anhydrase inhibitors
Action: decreases production of aqueous humor in ciliary body
Uses: open-angle glaucoma
Side effects - blurred vision, lethargy, depression
Nursing considerations
- Monitor for systemic effects
Cardiac glycosides
Example: Digoxin
Action: increases force of myocardial contraction, slows rate
Uses: left-sided heart failure
Side effects: bradycardia, nausea, vomiting, visual disturbances
Nursing considerations:
- Take apical pulse, for a full minute
- Notify physician if adult <90-110
- Monitor potassium level
- s/s digoxin toxicity: confusion, reports of yellow halos around lights
- toxic levels for digoxin: over 2 ng/ml
Cytoprotective agents
Action: forms a barrier on ulcer surface
Uses: duodenal ulcer
Side effects: constipation, vertigo, flatulence
Nursing considerations:
- take 1h ac
- Give 2h before or after other medications
Diuretics
Action: inhibits reabsorption of sodium and water, blocks effects of aldosterone
Uses: CHF, renal disease
Side effects: dizziness, orthostatic hypotension, leukopenia
Nursing considerations:
- Take with food or milk
- Take in a.m.
- Monitor fluid and electrolytes
Electrolytes
Action: replaces needed electrolytes
Uses: fluid and electrolyte imbalances, osteoporosis
Side effects: electrolyte imbalance
Nursing considerations:
- Monitor fluid and electrolytes
Iron Preparations
Action: increase availability of iron for hemoglobin
Uses: iron-deficiency anemia
Side effects: constipation, dark stools, tachycardia
Nursing considerations:
- Take on empty stomach
- Vitamin C increases absorption
- Monitor Hct and Hgb
Eye medications
Action: lubricant, causes vasoconstriction by local adrenergic action
Uses: ocular irritation
Side effects: headache, dizziness
Nursing considerations:
- apply light pressure on lacrimal sac for 1 min after instilling drops
- Monitor BP and pulse
Glucocorticoids
many end in “sone”
Action: stimulates formation of glucose, alters immune response
Uses: Addison’s disease, Crohn’s disease, COPD, leukemias
Side effects: susceptible to infection and masks infection, insomnia, hypoglycemia, hypokalemia, psychoses, depression, stunted growth
Nursing considerations:
- Monitor fluid and electrolyte balance
- Don’t discontinue abruptly
- monitor for signs of infection
Mineralcorticoids
Action: increases sodium reabsorption, potassium and hydrogen ion secretion in kidney
Uses: adrenal insufficiency
Side effects: hypertension, edema, hypokalemia
Nursing considerations:
- Monitor BP, I&O, weight, and electrolytes
- Give with food
- Low sodium, high-protein, high-potassium diet
Heavy metal antagonists
Action: forms stable complexes with metals
Uses: gold and arsenic poisoning, acute lead encephalopathy
Side effects: tachycardia, pain and induration at injection site
Nursing considerations:
- Monitor I&O and kidney function
- Administered with local anesthetic
- Seizure precautions