Celeste,
If you look down the page (I just copied it here) to
the asterisks, that I have added, you will see the
rest of it. This is the same url.
http://www.nlm.nih.gov/medlineplus/druginfo/medmaster/a682461.html
I'll give you the last word.
Ron
Why is this medication prescribed?
Levothyroxine, a thyroid hormone, is used to treat
hypothyroidism, a condition where the thyroid gland
does not produce enough thyroid hormone. Without this
hormone, the body cannot function properly, resulting
in poor growth, slow speech, lack of energy, weight
gain, hair loss, dry thick skin, and increased
sensitivity to cold. When taken correctly,
levothyroxine reverses these symptoms. Levothyroxine
also is used to treat congenital hypothyroidism
(cretinism) and goiter (enlarged thyroid gland).
This medication is sometimes prescribed for other
uses; ask your doctor or pharmacist for more
information.
How should this medicine be used?
Levothyroxine comes as a tablet to take by mouth. It
usually is taken as a single dose before breakfast
every day. To control the symptoms of hypothyroidism,
you probably will need to take this medicine for the
rest of your life. It may take about 2 weeks before
you notice any change in your symptoms. Follow the
directions on your prescription label carefully, and
ask your doctor or pharmacist to explain any part you
do not understand. Take levothyroxine exactly as
directed. Do not take more or less of it or take it
more often than prescribed by your doctor.
Continue to take levothyroxine even if you feel well.
Do not stop taking levothyroxine without talking to
your doctor.
What special precautions should I follow?
Before taking levothyroxine,
tell your doctor and pharmacist if you are allergic to
levothyroxine, thyroid hormone, any other drugs,
povidone iodine, tartrazine (a yellow dye in some
processed foods and drugs), or foods such as lactose
or corn starch. Levothroid and Eltroxin contain
lactose, while Synthroid contains tartrazine and
povidone. Eltroxin contains corn starch.
tell your doctor and pharmacist what prescription and
nonprescription medications you are taking, especially
amphetamines; antacids; anticoagulants ('blood
thinners') such as warfarin (Coumadin);
antidepressants or anti-anxiety agents; arthritis
medicine; aspirin; beta-blockers such as metoprolol
(Lopressor, Toprol), propranolol (Inderal) or timolol
(Blocadren, Timoptic); cancer chemotherapy agents;
cholesterol-lowering resins such as cholestyramine
(Questran) or colestipol (Colestid); diabetes
medications (insulin and tablets); digoxin (Lanoxin);
estrogens; iron; methadone; oral contraceptives;
phenytoin (Dilantin); sodium polystrene sulfonate
(Kayexalate); sucralfate (Carafate); steroids;
theophylline (TheoDur); and vitamins.
if you take cholestyramine (Questran) or colestipol
(Colestid), take it at least 4 hours before or 1 hour
after taking levothyroxine.
tell your doctor if you have or have ever had
diabetes; hardening of the arteries (atherosclerosis);
kidney disease; hepatitis; cardiovascular disease such
as high blood pressure, chest pain (angina),
arrhythmias, or heart attack; or an underactive
adrenal or pituitary gland.
tell your doctor if you are pregnant, plan to become
pregnant or are breast-feeding. If you become pregnant
while taking levothyroxine, call your doctor.
if you have surgery, including dental surgery, tell
the doctor or dentist that you are taking
levothyroxine.
* What special dietary instructions should I follow?
* Levothyroxine may cause an upset stomach. Take
* levothyroxine with food or milk.
What should I do if I forget a dose?
Take the missed dose as soon as you remember it.
However, if it is almost time for the next dose, skip
the missed dose and continue your regular dosing
schedule. Do not take a double dose to make up for a
missed one.
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