BILE SEQUESTERING DRUGS
·
Combines with bile
acids to form an insoluble compound excreted in the stool
·
Indication:
o
Patient s unable
to lower their LDL level through diet alone or with statin therapy.
·
Contraindication:
o
Should not be used
as the only therapy in patients with elevated triglycerides (may raise
triglyceride levels)
Example:
|
cholestyramine (Questran®)
|
colesevelam (Welchol®)
|
colestipol (Colestid®)
|
Side Effects:
·
Constipation
·
Peptic ulcer
Nursing Considerations:
ü
Cholestyramine-mix
thoroughly in juice or water before administration
ü
Monitor patient
for side effects.
ü
Provide patient
teaching. Medication should be followed by sufficient fluid intake.
ü
May bind with
thiazides, digoxin, warfarin and some antibiotics.
FIBRIC ACID DERIVATIVES
·
Lower triglycerides
and raise HDL (good cholesterol)
·
Indication:
o
To reduce the risk
of heart attack in patients with coronary artery disease who have low LDL, low
HDL, high triglycerides
·
Contraindication:
o
Severe hepatic and
renal disease, gallbladder disease, primary biliary cirrhosis, hypersensitivity
Example:
|
fenofibrate (Tricor®)
|
gemfibrozil (Lopid®)
|
Side Effects:
Gemfibrozil:
·
Upset stomach,
nausea and vomiting
·
Abdominal pain
·
Increased risk for
gallstones
·
Can interact with
anticoagulants causing bleeding
Fenofibrate:
·
Rash
·
Stomach upset
·
Risk for
gallstones
·
Hepatitis
·
Myositis
Nursing Considerations:
ü
Monitor patients
liver function tests and WBC counts.
ü
Check
triglycerides and cholesterol levels to assess for drug effectiveness.
ü
Notify physician
for biliary colic. Give analgesic if necessary.
ü
Provide patient
teaching:
o Inform the patient about prescribed drug and side
effects.
o Instruct the patient with DM to monitor blood glucose
levels regularly when using gemfibrozil.
HYDROXYMETHYLGLUTARYL-COENZYME A (HMG-CoA) REDUCTASE
INHIBITORS (Statins)
·
Lower lipid levels
by interfering with cholesterol synthesis. (↓LDL,↑HDL)
·
Indication:
o
To treat
hypercholesterolemia and prevent cardiovascular events
·
Contraindication:
o
Do not administer
with anticoagulants and gemfibrozil
o
Administer with
caution in patients taking immunosuppressive drugs
Example:
|
atorvastatin (Lipitor®)
|
lovastatin (Mevacor®)
|
pravastattin (Pravachol®)
|
rosuvastatin (Crestor®)
|
simvastatin (Zocor®)
|
fluvastatin (Lescol®)
|
Side Effects:
·
Abdominal pain
|
·
Constipation
|
·
Dyspepsia
|
·
Diarrhea
|
·
Flatulence
|
·
Nausea and
vomiting
|
·
Alopecia
|
·
Pruritus
|
·
Hepatotoxicity
|
·
Rhabdomyolysis
|
Nursing Considerations:
ü Advise patient to begin or continue lifestyle changes
(dietary management, weight control, exercise)
ü Monitor liver function test results.
ü Monitor cholesterol levels.
ü Administer lovastatin with evening meal to enhance
absorption.
ü Administer pravastatin at bedtime (for geriatric patient,
one with primary hypercholesterolemia, renal or hepatic dysfunction).
ü Instruct patient to notify immediately for any signs of
inexplained muscles aches.
CHOLESTEROL ABSORPTION INHIBITORS
·
Inhibit absorption
of cholesterol and phytosterols at the small intestines
·
Indication:
o
To treat primary
cholesterolemia
·
Contraindications:
o
Patients with
liver disease or liver enzyme elevations
o
Hypersensitivity
to drug components
Example:
|
ezetimibe (Zetia®)
|
Side Effects:
·
Abdominal pain
|
·
Diarrhea
|
·
Arthralgia
|
·
Cough
|
·
Back pain,
myalgia
|
·
Dizziness
|
·
Chest pain
|
·
Fatigue
|
·
Upper
respiratory tract infection
|
·
Headache
|
Nursing Considerations:
ü
Place patient on a
diet for lowering cholesterol before therapy starts and urge patient to
continue it during therapy.
ü
Assess liver
function tests before therapy starts and periodically thereafter if given with
HMG-CoA reductase inhibitor.
NICOTINIC ACID
·
Water- soluble
vitamin that decreases triglyceride and apolipoprotein B-100 levels and
increases HDL levels
·
Indication:
o
Used as adjunct to
lower triglyceride levels in patients with type IV or V hyperlipidemia who are
at risk for pancreatitis
·
Contraindication:
o
Patients with
liver dysfunction, active peptic ulcer disease, or arterial bleeding
Example:
|
nicotinic acid (Niacor®)
|
Side Effects:
·
|
·
Hepatotoxicity
|
·
Vasodilation
|
·
Hyperuricemia
|
·
Gastrointestinal
disturbances
|
|
Nursing Considerations:
ü
May tahe ASA 30
minutes before to decrease flushing
ü
Monitor patient’s
liver function tests.
ü
Assess lipid,
triglyceride, cholesterol level.
ü
Monitor for
possible drug induced adverse reactions.
ü
Assess patient’s
nutrition status periodically.