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Generic Name: Amlodipine
Brand Name(s):
Information updated: April 1, 2000
Overview
Norvasc belongs to a class of medicines called calcium channel blockers.
Because they are usually well-tolerated, these drugs have made the treatment of
angina and high blood pressure easier.
Norvasc is prescribed to treat
high blood pressure alone or in combination with other blood pressure pills. It
is also helpful for certain forms of angina.
Side Effects and Interactions
Norvasc is usually well tolerated with few side
effects, but some people react to this drug with fluid retention, leading to
swelling of the legs, feet or hands.
Dizziness, heart palpitations,
flushing or drowsiness may also occur, and women appear especially susceptible.
Other side effects include headache, weakness or fatigue, nausea, rash,
itching, indigestion, muscle cramps, and sexual difficulties. Report any
symptoms or suspected side effects to your physician promptly.
Norvasc
has remarkably few interactions with other drugs. Grapefruit or grapefruit juice
can boost blood levels of Norvasc slightly.
It is wise to check with
your doctor and pharmacist to make sure this medicine is safe in combination
with any other drugs you take.
Special Precautions
People with liver disease may need a lower dose of Norvasc, as may the elderly.
Patients with congestive heart failure must be monitored closely if they take any calcium channel blocker.
Taking the Medicine
Norvasc may be taken with or without meals, once a day.
Do not stop taking Norvasc
suddenly, as this could lead to complications. Your doctor will tell you how to taper off gradually
if you no longer need this medication.
Joe Graedon is a pharmacologist. Teresa Graedon holds a doctorate in medical anthropology and is a nutrition expert. Their syndicated radio show can be heard on public radio.
© 2000