Viagra
Generic Name: sildenafil
Brand Names: Revatio, Viagra
What is sildenafil?
Sildenafil relaxes muscles and increases blood flow to particular areas of the body.
Sildenafil is used to treat erectile dysfunction (impotence) in the treatment of pulmonary arterial hypertension.
Sildenafil may also be used for purposes other than those listed in this medication guide.
What is the most important information I should know about sildenafil?
A small number of patients have lost eyesight in one eye after taking sildenafil. This type of vision loss is known by the name of anterior ischemic optic neuropathy-arterial (NAION, by its initials in English). NAION causes a sudden loss of eyesight is blocked blood flow to the optic nerve. It is not known at this time if tadalafil causes NAION. NAION also happens in patients who do not take this medicine. People with an increased risk of NAION include those who:
Stop using sildenafil if you have any loss of eyesight and seek medical attention immediately.
Do not take sildenafil if you are using a nitrate drug for chest pain or heart problems. Nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, nitrite, nitrite, Transderm-Nitro, others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket) . Nitrates are also found in recreational drugs such as amyl nitrate or nitrite ( "poppers"). Contact your doctor or seek emergency medical attention for any erection that lasts more than 4 hours. An erection can damage the penis.
Activity after having more sex and contact your doctor if you experience headache, dizziness, nausea, or angina (pain, heaviness, discomfort, numbness, or tingling in the chest, arms, neck, or jaw) during sexual intercourse .
Sildenafil should not take more than once a day.
What should I discuss with my healthcare provider before taking sildenafil?
A small number of patients have lost eyesight in one eye after taking tadalafil. This type of vision loss is known by the name of anterior ischemic optic neuropathy-arterial (NAION, by its initials in English). NAION causes a sudden loss of eyesight is blocked blood flow to the optic nerve. It is not known at this time if tadalafil causes NAION. NAION also happens in patients who do not take this medicine. People with an increased risk of NAION include those who:
Stop using tadalafil if you have any loss of eyesight and seek medical attention immediately.
Do not take sildenafil if you are using a nitrate drug for chest pain or heart problems. Nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, nitrite, nitrite, Transderm-Nitro, others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket) . Nitrates are also found in recreational drugs such as amyl nitrate or nitrite ( "poppers").
Before taking sildenafil, tell your doctor if you
has had a heart attack, stroke, irregular heartbeats or risk to life, in the last 6 months;
have a history of heart failure;
have coronary artery disease;
have angina;
have high or low blood pressure;
- have liver disease;
- have kidney disease;
have a bleeding disorder;
had blood problems, including sickle cell anemia or leukemia;
have retinitis pigmentosa (an inherited condition of the eye);
have a physical deformity of the penis such as Peyronie's disease, or
has a condition that can lead to prolonged and painful erections, such as a tumor of the bone marrow, sickle cell anemia, or leukemia, or
are taking another medicine to treat impotence, such as alprostradil (Caverject, Muse, Edex) or yohimbine (fluconazole supplements you use.)
Maybe you can not take sildenafil, or you may require a dosage adjustment or special monitoring during treatment if you have any of the conditions listed above.
Although sildenafil is not approved for use in women, it has been classified by the FDA category B pregnancy. This means that sildenafil is not expected to harm an unborn baby. Sildenafil should not be used by women. It is not known if sildenafil passes into breast milk. Sildenafil should not be used by women If you are over 65 years of age, you are more likely to experience side effects of sildenafil. You may need a lower dose of this medication.
How should I take sildenafil?
Take sildenafil exactly as directed by your doctor. Please understand these instructions, ask your doctor, nurse or pharmacist to explain them.
Take each dose with a full glass of water.
Sildenafil is usually taken when needed. This can take from 4 hours to half an hour before sex. Usually it is taken 1 hour before sexual activity. The medication can help achieve an erection when sexual stimulation occurs. An erection will not occur just by taking a pill. Follow your doctor's instructions.
If you take Sildenafil after a high-fat meal (such as a cheeseburger and fries) may take longer for the medicine starts working.
Do not take sildenafil more than once a day.
If you experience headache, dizziness, nausea, or angina (pain, heaviness, discomfort, numbness, or tingling in the chest, arms, neck, or jaw) during sexual activity after having more sex and contact your doctor .
Contact your doctor or seek emergency medical attention for any erection that lasts more than 4 hours. An erection can damage the penis.
The grapefruit or grapefruit juice may interact with sildenafil. This interaction can cause serious side effects. Talk to your doctor about the use of grapefruit or grapefruit juice. Not increase or decrease the amount of grapefruit products in your diet without first talking to your doctor.
Sildenafil Keep at room temperature away from moisture and heat.
What if I miss a dose?
Sildenafil is used as needed, so it's not likely that you miss a dose.
What happens if I overdose?
Seek emergency medical attention.
Symptoms of a sildenafil overdose are not known, but is likely to include chest pain, dizziness, irregular heartbeat, and swelling of the legs and ankles.
What should I avoid while taking sildenafil?
Do not take any drug to treat impotence, such as alprostadil (Caverject, Muse, Edex) or yohimbine (fluconazole supplements you use) without first talking to your doctor.
The grapefruit or grapefruit juice may interact with sildenafil. This interaction can cause serious side effects. Talk to your doctor about the use of grapefruit or grapefruit juice. 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 sildenafil?
If you notice any of these serious side effects, stop taking sildenafil and seek emergency medical attention or contact your doctor immediately:
an allergic reaction (difficulty breathing, closing of your throat swelling of your lips, tongue, or face or hives);
chest pain or irregular heartbeats;
swelling of the legs and ankles;
shortness of breath;
continued or severe dizziness.
painful erection or long duration (lasting longer than 4 hours) or
dizziness, nausea, or angina (pain, tightness, discomfort, numbness, or tingling in your chest, arms, neck, or jaw).
Other less serious side effects may be more likely to occur. Continue taking sildenafil and talk to your doctor if you
Besides the side effects listed above may also occur. Ask your doctor about any side effect that seems unusual or bothersome.
What other drugs will affect sildenafil?
Do not take sildenafil if you are using a nitrate drug for chest pain or heart problems. Nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, nitrite, nitrite, Transderm-Nitro, others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket) . Nitrates are also found in recreational drugs such as amyl nitrate or nitrite ( "poppers").
Before taking sildenafil, tell your doctor if you are taking any of the following medications:
another drug to treat impotence, such as alprostadil (Caverject, Muse, Edex) or yohimbine (fluconazole, doxazosin, other);
antibiotic drugs clarithromycin (Biaxin), erythromycin (E-Mycin, Eryc, Ery-Tab, others), or troleandomycin (TAO);
antifungal drugs (antifungal) and itraconazole (Sporanox) or ketoconazole (Nizoral);
HIV medications amprenavir (Agenerase), delavirdine (Rescriptor), indinavir (Crixivan), nelfinavir (Viracept), ritonavir (Norvir) or saquinavir (Fortovase, Invirase);
cimetidine (Tagamet, Tagamet HB);
phenobarbital (Luminal);
carbamazepine (Tegretol) or phenytoin (Dilantin) or
rifampin (Rifadin, Rifamate) and rifabutin (Micobutin).
Maybe you can not take sildenafil, or you may require a dosage adjustment or special monitoring during treatment if you are taking any of the medicines listed above.
Besides the drugs mentioned above, others may also interact with sildenafil. Check with your doctor and pharmacist before taking any medication, whether prescribed or not, including herbal products.
Where can I get more information?
- Your pharmacist has information about sildenafil written for the health professionals that you may read.
What does my medication?
Sildenafil is available with a prescription under the brand name Viagra. Other brand or generic formulations may also be available. Ask your pharmacist any questions you have about this medication, especially if it is new to you.
Viagra 25 mg - coated tablets, blue, diamond-shaped rounded
Viagra 50 mg - coated tablets, blue, rounded shape of a diamond
Viagra 100 mg - coated tablets, blue, rounded shape of a diamond
- Keep in mind, keep this and all other medicines out of reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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