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What is the most important information I should know about terazosin?
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Before taking terazosin, tell your doctor if you use any
other blood pressure medications, especially verapamil (Calan, Covera,
Isoptin, Verelan). You may need a dosage adjustment if you take
terazosin with other blood pressure medicines. |
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Terazosin lowers blood pressure and may cause dizziness or
fainting, especially when you first start taking it, or when you start
taking it again. To avoid falling, take the first dose of terazosin at
bedtime. You may wish to continue taking this medication only at bedtime
if it causes you to feel light-headed. |
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You may feel very dizzy when you first wake up. Be careful
when standing or sitting up from a lying position. |
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If you stopped taking terazosin for any reason and have
started taking it again, you may feel especially dizzy or light-headed
after your first few doses. |
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Terazosin can affect the pupils of your eyes during cataract
surgery. If you have cataract surgery during your treatment with
terazosin, tell the surgeon ahead of time that you take terazosin. Do
not stop using the medication before surgery unless your surgeon tells
you to. |
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Terazosin is in a group of drugs called alpha-adrenergic
blockers. Terazosin causes the blood vessels (veins and arteries) to
relax and expand, improving blood flow. Terazosin also relaxes muscles
in the prostate and bladder neck, making it easier to urinate. |
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Terazosin is used to treat hypertension (high blood pressure)
and benign prostatic hyperplasia (enlarged prostate). |
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Terazosin may also be used for purposes other than those
listed in this medication guide. |
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What should I discuss with my healthcare provider before taking
terazosin?
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Terazosin can affect the pupils of your eyes during cataract
surgery. If you have cataract surgery during your treatment with
terazosin, tell the surgeon ahead of time that you take terazosin. Do
not stop using the medication before surgery unless your surgeon tells
you to. |
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FDA pregnancy category C. This medication may be harmful to
an unborn baby. Tell your doctor if you are pregnant or plan to become
pregnant during treatment. |
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It is not known whether terazosin passes into breast milk or
if it could harm a nursing baby. Do not use this medication without
telling your doctor if you are breast-feeding a baby. |
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How should I take terazosin?
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Take this medication exactly as it was prescribed for you.
Do not take the medication in larger amounts, or take it for longer than
recommended by your doctor. |
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Take each dose with a full glass of water. |
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• |
Terazosin lowers blood pressure and may cause dizziness or
fainting, especially when you first start taking it, or when you start
taking it again. To avoid falling, take the first dose of terazosin at
bedtime. You may wish to continue taking this medication only at bedtime
if it causes you to feel light-headed. |
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• |
You may feel very dizzy when you first wake up. Be careful
when standing or sitting up from a lying position. |
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• |
If you stopped taking terazosin for any reason and have
started taking it again, you may feel especially dizzy or light-headed
after your first few doses. |
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To be sure this medication is helping your condition, your
blood pressure or prostate will need to be checked on a regular basis.
It is important that you not miss any scheduled visits to your doctor. |
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If you are being treated for high blood pressure, keep using
this medication even if you feel fine. High blood pressure often has no
symptoms. |
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Store terazosin at room temperature away from moisture and
heat. |
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What happens if I miss a dose?
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Take the missed dose as soon as you remember. If it is
almost time for your next dose, skip the missed dose and take the
medicine at the next regularly scheduled time. Do not take extra
medicine to make up the missed dose. |
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If you miss doses for several days in a row, call your
doctor before taking any additional doses. You may need to use a lower
dose of terazosin for a short time. |
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What happens if I overdose?
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Seek emergency medical attention if you think you have used
too much of this medicine. |
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Symptoms of a terazosin overdose may include dizziness,
fainting, shallow breathing, a weak but rapid pulse, and cold, clammy
skin. |
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What should I avoid while taking terazosin?
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Terazosin can cause side effects that may impair your
thinking or reactions. Be careful if you drive or do anything that
requires you to be awake and alert. |
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Avoid using other medicines that make you sleepy (such as
cold medicine, pain medication, muscle relaxers, and medicine for
seizures, depression or anxiety). They can add to sleepiness caused by
terazosin. |
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What are the possible side effects of terazosin?
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Get emergency medical help if you have any of these signs
of an allergic reaction: hives; difficulty breathing; swelling of
your face, lips, tongue, or throat. |
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Call your doctor at once if you have any of these serious
side effects: |
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fast or pounding heartbeats; |
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feeling light-headed, fainting; |
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swelling in your hands, ankles, or feet; or |
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penis erection that is painful or lasts 4 hours or longer. |
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Other, less serious side effects may be more likely to occur,
such as: |
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numbness or tingly feeling; |
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Side effects other than those listed here may also occur.
Talk to your doctor about any side effect that seems unusual or that is
especially bothersome. |
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What other drugs will affect terazosin?
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Before taking terazosin, tell your doctor if you use any
other blood pressure medications, especially verapamil (Calan, Covera,
Isoptin, Verelan). You may need a dosage adjustment if you take
terazosin with other blood pressure medicines. |
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There may be other drugs that can affect terazosin. Tell
your doctor about all the prescription and over-the-counter medications
you use. This includes vitamins, minerals, herbal products, and drugs
prescribed by other doctors. Do not start using a new medication without
telling your doctor. |
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Where can I get more information?
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Your pharmacist has additional information about terazosin
written for health professionals that you may read |
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Remember, keep this and all other medicines out of the reach
of children, never share your medicines with others, and use this
medication only for the indication prescribed. |
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Every effort has been made to ensure that the information
provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and
complete, but no guarantee is made to that effect. Drug information
contained herein may be time sensitive. Multum information has been
compiled for use by healthcare practitioners and consumers in the United
States and therefore Multum does not warrant that uses outside of the
United States are appropriate, unless specifically indicated otherwise.
Multum's drug information does not endorse drugs, diagnose patients or
recommend therapy. Multum's drug information is an informational
resource designed to assist licensed healthcare practitioners in caring
for their patients and/ or to serve consumers viewing this service as a
supplement to, and not a substitute for, the expertise, skill, knowledge
and judgment of healthcare practitioners. The absence of a warning for a
given drug or drug combination in no way should be construed to indicate
that the drug or drug combination is safe, effective or appropriate for
any given patient. Multum does not assume any responsibility for any
aspect of healthcare administered with the aid of information Multum
provides. The information contained herein is not intended to cover all
possible uses, directions, precautions, warnings, drug interactions,
allergic reactions, or adverse effects. If you have questions about the
drugs you are taking, check with your doctor, nurse or pharmacist. |
Copyright 1996-2006 Cerner Multum, Inc. Version: 6.04. Revision
date: 6/ 27/ 06. |