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Cialis
This page contains drug information on Cialis.
The information provided includes the following:
- what is Cialis
- the possible side effects of Cialis
- what happens if you miss a dose of Cialis
- what happens if you overdose with Cialis
- the most important information about Cialis
- how to use Cialis
- other drugs that may affect Cialis
- what to avoid while using Cialis
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Generic Name: tadalafil (tah DAL a fil)
Brand Names:
Cialis
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What is the most important information I should know about
tadalafil?
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A small number of patients have lost eyesight in one eye after
taking tadalafil. This type of vision loss is called
non-arteritic anterior ischemic optic neuropathy (NAION). NAION
causes a sudden loss of eyesight because blood flow is blocked
to the optic nerve. It is not clear at this time if tadalafil
causes NAION. NAION also happens in patients who do not take
this medicine. People who have a higher chance for NAION include
those who: |
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have high blood pressure; |
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have certain eye problems. |
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Stop using tadalafil if you have any loss in your eyesight and
seek medical help right away. |
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Do not take tadalafil if you are taking any of the following
medicines: |
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a nitrate such as nitroglycerin (Nitrostat, Nitrolingual,
Nitro-Dur, Nitro-Bid, Minitran, Deponit, Transderm-Nitro,
others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate),
isosorbide mononitrate (Imdur, ISMO, Monoket), and others; |
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nitrates are also found in some recreational drugs such as
amyl nitrate or nitrite ("poppers"); or |
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an alpha blocker (other than tamsulosin (Flomax) 0.4 mg once a
day) such as doxazosin (Cardura), guanadrel (Hylorel), prazosin
(Minipress), terazosin (Hytrin), alfuzosin (Uroxatral), and
others. |
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Taking tadalafil with any of these medications may cause very
low blood pressure, possibly resulting in dizziness,
fainting, stroke, or heart attack. |
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Contact your doctor or seek emergency medical attention for
any erection that lasts longer than 4 hours. A sustained
erection can damage the penis. |
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Refrain from further sexual activity and notify your doctor it
you develop dizziness, nausea, or angina (pain, tightness,
discomfort, numbness, or tingling in the chest, arms, neck, or
jaw) during sexual activity. |
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Tadalafil is usually taken when needed before sexual activity.
The effects of tadalafil may last for up to 36 hours or more.
Your doctor will determine how often you can take tadalafil. Do
not take tadalafil more often than is directed by your doctor. |
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Tadalafil relaxes muscles within the penis. This allows
increased blood flow into the penis, necessary to achieve and
maintain an erection. |
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Tadalafil is used to treat erectile dysfunction (impotence). |
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Tadalafil may also be used for purposes other than those
listed in this medication guide. |
What should I discuss with my healthcare provider
before taking tadalafil?
|
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• |
A small number of patients have lost eyesight in one eye after
taking tadalafil. This type of vision loss is called
non-arteritic anterior ischemic optic neuropathy (NAION). NAION
causes a sudden loss of eyesight because blood flow is blocked
to the optic nerve. It is not clear at this time if tadalafil
causes NAION. NAION also happens in patients who do not take
this medicine. People who have a higher chance for NAION include
those who: |
|
· |
have high blood pressure; |
|
· |
have certain eye problems. |
|
• |
Stop using tadalafil if you have any loss in your eyesight and
seek medical help right away. |
|
• |
Do not take tadalafil if you are taking any of the following
medicines: |
|
· |
a nitrate such as nitroglycerin (Nitrostat, Nitrolingual,
Nitro-Dur, Nitro-Bid, Minitran, Deponit, Transderm-Nitro, others),
isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate),
isosorbide mononitrate (Imdur, ISMO, Monoket), and others; |
|
· |
nitrates are also found in some recreational drugs such as
amyl nitrate or nitrite ("poppers"); or |
|
· |
an alpha blocker (other than tamsulosin (Flomax) 0.4 mg once a
day) such as doxazosin (Cardura), guanadrel (Hylorel), prazosin
(Minipress), terazosin (Hytrin), alfuzosin (Uroxatral), and
others. |
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• |
Taking tadalafil with any of these medications may cause very
low blood pressure, possibly resulting in dizziness, fainting,
stroke, or heart attack. |
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Before taking tadalafil, tell your doctor if you |
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have heart problems such as angina, heart failure, irregular
heartbeats, or have had a heart attack; |
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have low blood pressure or high blood pressure that is not
controlled; |
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have ever had blood cell problems such as sickle cell anemia, multiple
myeloma, or leukemia; |
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have a bleeding disorder; |
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have retinitis pigmentosa (an inherited condition of the eye); |
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have a physical deformity of the penis such as Peyronie's
disease; |
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had an erection that lasted longer than 4 hours. |
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You may not be able to take tadalafil, or you may require a
dosage adjustment or special monitoring during treatment if you
have any of the conditions listed above. |
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Although tadalafil is not indicated for use by women, it is in
the FDA pregnancy category B. This means that tadalafil is not
expected to be harmful to an unborn baby. Tadalafil should not
be taken by women. |
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It is not known whether tadalafil passes into breast milk.
Tadalafil should not be taken by women. |
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If you are over 65 years of age, you may be more likely to
experience side effects from tadalafil. Your doctor may
prescribe a lower dose of this medication. |
How should I take tadalafil?
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Take tadalafil exactly as directed by your doctor. If you do
not understand these directions, ask your pharmacist, nurse, or
doctor to explain them to you. |
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Take each dose with a full glass of water. |
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Tadalafil is usually taken when needed before sexual activity.
The effects of tadalafil may last for up to 36 hours or more.
Your doctor will determine how often you can take tadalafil. Do
not take tadalafil more often than is directed by your doctor. |
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Tadalafil can help achieve an erection when sexual stimulation
occurs. An erection will not occur just by taking a pill. |
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Tadalafil can be taken with or without food. |
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Tadalafil should not be taken with excessive amounts of
alcohol (e.g. 5 or more drinks). Excessive alcohol may increase
the risk of headache, dizziness, increased heart rate, or
low blood pressure when tadalafil is taken. |
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If you develop dizziness, nausea, or angina (pain, tightness,
discomfort, numbness, or tingling in the chest, arms, neck, or
jaw) during sexual activity, refrain from further sexual
activity and notify your doctor. |
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• |
Contact your doctor or seek emergency medical attention for
any erection that lasts longer than 4 hours. A sustained
erection can damage the penis. |
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Grapefruit and grapefruit juice may interact with tadalafil.
The interaction could lead to potentially adverse effects. You
should discuss the use of grapefruit and grapefruit juice with
your doctor. Do not increase or decrease the amount of
grapefruit products in your diet without first talking to your
doctor. |
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Store this medication at room temperature away from moisture
and heat. |
What happens if I miss a dose?
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Tadalafil is used as needed, so you are not likely to miss a
dose. |
What happens if I overdose?
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Seek emergency medical attention if an overdose is suspected. |
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Symptoms of a tadalafil overdose are not known. |
What should I avoid while taking tadalafil?
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Do not take any other drug used to treat impotence, such as
sildenafil (Viagra), vardenafil (Levitra), alprostadil (Caverject,
Muse, Edex) or yohimbine (Yocon, Yodoxin, others), without first
talking to your doctor. |
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Tadalafil should not be taken with excessive amounts of
alcohol (e.g. 5 or more drinks). Excessive alcohol may increase
the risk of headache, dizziness, increased heart rate, or
low blood pressure when tadalafil is taken. |
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Grapefruit and grapefruit juice may interact with tadalafil.
The interaction could lead to potentially adverse effects. You
should discuss the use of grapefruit and grapefruit juice with
your doctor. Do not increase or decrease the amount of
grapefruit products in your diet without first talking to your
doctor. |
What are the possible side effects of tadalafil?
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If you experience any of the following serious side effects,
stop taking tadalafil and seek emergency medical attention or
contact your doctor immediately: |
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an allergic reaction (difficulty breathing; closing of the
throat; swelling of the lips, tongue, or face; or hives); |
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chest pain or irregular heartbeats; |
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dizziness, nausea, or angina (pain, tightness, discomfort,
numbness, or tingling in the chest, arms, neck, or jaw); |
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swelling of the ankles or legs; |
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prolonged or severe dizziness; or |
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a prolonged (lasting longer than 4 hours) or painful erection. |
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Other, less serious side effects may be more likely to occur.
Continue to take tadalafil and talk to your doctor if you
experience |
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stuffy or runny nose; or |
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temporary blue tint in vision or difficulty telling the
difference between the colors blue and green (uncommon). |
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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. |
What other drugs will affect tadalafil?
|
|
• |
Do not take tadalafil if you are taking any of the following
medicines: |
|
· |
a nitrate such as nitroglycerin (Nitrostat, Nitrolingual,
Nitro-Dur, Nitro-Bid, Minitran, Deponit, Transderm-Nitro, others),
isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate),
isosorbide mononitrate (Imdur, ISMO, Monoket), and others; |
|
· |
nitrates are also found in some recreational drugs such as
amyl nitrate or nitrite ("poppers"); or |
|
· |
an alpha blocker (other than tamsulosin (Flomax) 0.4 mg once a
day) such as doxazosin (Cardura), guanadrel (Hylorel), prazosin
(Minipress), terazosin (Hytrin), alfuzosin (Uroxatral), and
others. |
|
• |
Taking tadalafil with any of these medications may cause very
low blood pressure, possibly resulting in dizziness, fainting,
stroke, or heart attack. |
|
• |
Before taking tadalafil, tell your doctor if you are taking
any of the following medications: |
|
· |
any other drug used to treat impotence, such as sildenafil (Viagra),
vardenafil (Levitra), alprostadil (Caverject, Muse, Edex) or
yohimbine (Yocon, Yodoxin, others); |
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the antibiotic erythromycin (E-Mycin, Eryc, Ery-Tab, others); |
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an antifungal medication such as itraconazole (Sporanox) or
ketoconazole (Nizoral); or |
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HIV medications such as indinavir (Crixivan), ritonavir (Norvir),
and others. |
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You may not be able to take tadalafil, or you may require a
dosage adjustment or special monitoring during treatment if you
are taking any of the medicines listed above. |
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Drugs other than those listed here may also interact with
tadalafil or affect your condition. Talk to your doctor or
pharmacist before taking any prescription or over-the-counter
medicines, including vitamins, minerals, and herbal products. |
Where can I get more information?
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Your pharmacist has additional information about tadalafil
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. |
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