Sildenafil is a brand name for the drug Viagra, which is used to treat erectile dysfunction (ED). When a man is sexually stimulated, the flow of blood to the penis is stimulated, and it allows an erection to occur. Sildenafil works by inhibiting the enzyme phosphodiesterase type 5 (PDE5), which is responsible for breaking down cyclic guanosine monophosphate (cGMP). By preventing the breakdown of cGMP, sildenafil helps to relax the smooth muscles in the penis, allowing for easier blood flow. This allows for the growth and improved erectile function of the penis.
Sildenafil works by preventing the breakdown of cGMP. It does this by blocking the enzyme PDE5, which is responsible for breaking down cGMP. When cGMP is degraded, it helps to relax the smooth muscles in the penis, allowing for easier blood flow.
Sildenafil is prescribed for the treatment of ED. It is also prescribed to treat pulmonary arterial hypertension (PAH), a condition that causes high blood pressure in the arteries of the lungs.
The recommended dose of sildenafil is 50 mg. Your doctor may increase your dose to 100 mg based on your response and tolerability. Do not take sildenafil more than once a day.
Some of the side effects of sildenafil are:
If you experience any of these side effects or any other side effects while taking sildenafil, contact your doctor immediately.
It is important to tell your doctor about all the conditions you are currently taking and how you are taking the medication before starting treatment with sildenafil. Do not take sildenafil more often than once per day and use an alternate medicine every day.
Tell your doctor about all the medications you are currently taking, including prescription and over-the-counter medications, vitamins, and herbal supplements.
Inform your doctor if you are currently pregnant or breastfeeding before taking this medication.
Sildenafil may cause side effects in some people.
Sildenafil and Alcohol| Alcohol | Alcoholism | Alcohol with a high blood alcohol content (HVC) |
|---|---|---|
| Limit alcohol | Do not drink alcohol while taking sildenafil or before taking it. | |
| Excessive alcohol use | ||
| High blood pressure | ||
| Heart problems | Do not take sildenafil or other PDE5 inhibitors if you have heart problems. | |
| Stomach ulcers or bleeding problems | Do not take sildenafil or other PDE5 inhibitors if you have stomach ulcers or bleeding problems. |
Product Name:Viagra
Ingridients:Sildinafil 100mg
Product Type:Tablet
Product size:6's
Company:Pfizer
Used for:
Swallow tablets whole with a drink of water or juice (but not grapefruit juice).
For erectile dysfunction, it's best to take sildenafil on an empty stomach. It may take longer to work if you take it with food.
If you or your child are taking sildenafil as a liquid, 1ml is usually the same as taking a 10mg tablet, but it's important to always check the medicine label.
Liquid sildenafil will usually be made up for you by your pharmacist.
The medicine will come with a plastic syringe or spoon to help you take the right amount. If you do not have a plastic syringe or spoon, ask your pharmacist for one. Do not use a kitchen teaspoon as it will not measure the right amount.
Taking too much sildenafil can cause unpleasant side effects.
Talk to your doctor if you take too much sildenafil and you're worried about any of these side effects:
Taking sildenafil as a liquid can cause a real side effect:
If you take sildenafil separately (such as tadalafil and vardenafil), your doctor will likely start you on an appropriate drug regimen to help you take the medication at the same time. For example, sildenafil takes up to 6 months to work its effects.
The recommended starting dose of sildenafil for treating erectile dysfunction is 10mg taken as a 10mg tablet. If needed, the dose can be increased to 20mg as needed. Your doctor may recommend a lower dose depending on your age, severity of erectile dysfunction and how well you tolerate sildenafil.
If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one.
Taking sildenafil as a liquid may help:
While using this medication, you should:
Tadarise and its generic drugs are the latest in a wave of innovation that's helping to break down those barriers and bring patients back to work.
The drug that is approved by the Food and Drug Administration (FDA) by almost a third of its market is Viagra. It is the first of a new class of drugs, known as sildenafil (the active ingredient in the erectile dysfunction treatment Viagra), to be approved for treatment of erectile dysfunction. The first approved for the treatment of ED, Viagra was launched by Pfizer in the United States and Europe in 1998, and has since become the first-ever generic medication to win FDA approval for the treatment of ED. Sildenafil works by increasing blood flow to the penis, which can help to get and maintain an erection. Viagra is sold under the brand name Revatio, and is available for those who want to try it.
Viagra and other drugs are available in the same strength as those in the brand name Revatio. The drug's brand name is Cialis, and its generic version is Vardenafil, which is also available for the treatment of erectile dysfunction.
Viagra has been nicknamed the "little blue pill," but its active ingredient, sildenafil citrate, is one of the newer and more efficient treatments for erectile dysfunction. The generic version is also available in lower doses, which makes it easier to reach men with ED.
Sildenafil's patent for the treatment expired in June 2018, and in July of this year, Pfizer filed a lawsuit to stop the patent from being invalidated, arguing that its patent for Viagra had not been infringed by the generic version of Viagra, Cialis.
The generic version of Viagra, Cialis, will soon be introduced in the US, and other generic versions of the drug will be launched soon. The patent on Cialis expires in 2017, but patent protection for the treatment of erectile dysfunction expired in 2013.
Pfizer has launched a new product in the US called a generic Viagra, which will be available in the US for a limited time. The generic version of the drug is called Revatio, and it will be available to buy online at the same strength as the brand-name version. In the United States, the generic version is called Revatio.
In Europe, the generic Viagra has already been available at a lower cost. There are currently no generic versions of the drug yet for sale in the EU.
In November, Pfizer said it was reviewing its patent for the treatment of pulmonary arterial hypertension, also known as PAH. The patent will expire in 2015, but it is likely that the drug will soon be available in Europe.
The first approved for treating erectile dysfunction was made possible thanks to a new clinical trial involving 10 patients with ED. It was a long-term study, with only 10 patients enrolled in it, and the results showed an improvement in sexual ability.
The FDA approved Viagra in 2003, and in June 2012, the drug was approved for the treatment of erectile dysfunction. The treatment is also approved in the United States to treat pulmonary arterial hypertension.
Viagra and other drugs are available in the same strength as those in the brand-name Revatio. The generic version of Viagra, Cialis, will soon be available in the US, and other generic versions will be available soon.
In addition to Viagra and other drugs, Pfizer's other products are making big investments in the company's research and development, which is led by its scientists, Dr. Peter Dunn and Dr. Charles�susrise.
Dr. Dunn is the co-author of "About Viagra: The Science and Development of the Modern Erectile Dysfunction Drug," in the October 2023 issue of the New England Journal of Medicine. Dunn is the senior vice president and general counsel of the British PSA Foundation, and co-author of "About Pfizer: The Rise and Stages of PSA," in the February 2024 issue of the New England Journal of Medicine.
Dunn has served as chief scientist in the company's research and development department, and is currently the chair of the company's scientific committee.
Pfizer's patent for Viagra expires in 2017. Viagra is available from other generic versions, including Cialis, and Revatio.
Originally developed as an angina drug, Viagra has gained popularity due to its effectiveness and safety profile. The active ingredient in Viagra is sildenafil citrate, which has helped to treat erectile dysfunction.
Pronunciation:s-IL-fe-ahGeneric name:sildenafilBrand names:Viagra, generic ViagraDrug class:
Medically reviewed by. Last updated on Feb 23, 2025.
This medication is used to treat male sexual function problems (impotence or erectile dysfunction-ED). It works by increasing blood flow to the penis, helping to achieve and maintain an erection.
It is important to take sildenafil exactly as prescribed by your doctor. Follow the directions on your prescription label and read the medication instructions only. Do not take more or less of this medication than directed.
If you have any questions about this medication or take your medication exactly as directed, ask your pharmacist or doctor for help. This medication may be harmful to your health. Tell your doctor right away if you have any health problems, especially if they are not listed in the "Cautions" section.
Sildenafil works by relaxing the smooth muscle in the penis, allowing for increased blood flow, which helps you achieve and maintain an erection. It also allows for greater freedom in sexual activity and increased sensitivity to sexual stimulation. Viagra is the most popular of the several ED medications.
Remember that this medication does not protect you or your doctor from getting certain other health problems, including diabetes, high blood pressure, high cholesterol, or heart disease. You must talk to your doctor about all of these health problems before taking this medication.
Some health conditions may interact with sildenafil. Tell your doctor about all of your medical conditions, especially if you:
Some medications may interact with sildenafil. Ask your pharmacist about other medications you are taking that could interact. It is important to tell your doctor about all the medications you are taking, even those that do not appear on this list.
Ask your doctor about other ways to help manage your medications. Tell your doctor if you are taking any of the following:
This list does not include all possible interactions. Give your pharmacist or doctor a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also, tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your sildenafil prescription or you may get side effects such as dizziness, headache, or stomach upset. It is important to let your doctor know about all the medications you are taking so that they can determine whether or not you are being taken too much.
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