Sildenafil citrate, commonly known by the brand name, is a prescription-only medicine used to treat erectile dysfunction (ED) in adult men. It works by improving blood flow to the penis, helping to achieve and maintain an erection during sexual activity.
Sildenafil is available in 25mg, 50mg, and 100mg strengths.
Sildenafil has been shown to be effective in up to 80% of men with ED, with effects typically noticeable within 30 to 60 minutes, and lasting for up to 4–5 hours.
Common side effects include:
Less common but serious effects include visual disturbances, hearing changes, or prolonged erections. Seek medical attention if severe or persistent side effects occur.
Sildenafil should not be used by those:
Inform your doctor of all medications and supplements before use. Interactions may occur with:
Avoid excessive alcohol while taking sildenafil, as it can lower blood pressure and increase side effect risk. Use with caution if you have any heart-related conditions.
Sildenafil is available by prescription only in the UK.
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https://www.youtube.com/watch?v=qqqqqqqqqqqqSildenafil is available in the UK by prescription only and is taken for the treatment of erectile dysfunction (ED) in adult men. The most common side effects are:
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U. S. Food and Drug Administration (FDA) December 25, 2025. FAPISCO has decided that the patent on the product Viagra® was assigned to Pfizer Inc., upon which Pfizer Inc. will be adding the generic drug sildenafil as a separate product. Pfizer Inc. and Pfizer Inc.Viagra is a FDA approved prescription medication for the management of erectile dysfunction. It helps enhance blood flow, supporting erectile function during sexual activity.
Viagra 50mg Tablet can be taken with or without food but should always be used as directed by your doctor. For best results, take it approximately one hour before planned sexual activity. While the time it takes to work may vary from person to person, it usually starts acting within 30 minutes to an hour. This medicine works only when there is sexual stimulation. Do not exceed the recommended dose of one tablet in 24 hours.
Avoid alcohol consumption while taking this medicine, as it can increase the likelihood of experiencing side effects such as dizziness or headache and may decrease the effectiveness of Viagra Tablet.
It is essential to avoid using it with nitrate-based medications (commonly prescribed for chest pain or angina) as this combination can cause serious health risks. Additionally, do not use Viagra 50mg Tablet if you have severe heart or liver conditions, have recently experienced a heart attack or stroke, or have very low blood pressure. Always inform your doctor about your medical history before starting this medication.
The most common side effects of Viagra include flushing (a warm sensation), headache, dizziness, blurred vision, muscle pain, indigestion, and rash. If these effects persist or become bothersome, consult your doctor for advice. They may adjust your dosage or suggest an alternative treatment. Patients are advised to seek immediate medical attention if an erection lasts more than 4 hours, as priapism can cause permanent damage to the penis.
What is Viagra (sildenafil)?Viagra is a prescription medication that helps men achieve and maintain an erection during sexual activity. It is primarily used to treat erectile dysfunction (impotence) in men. Viagra is available in various forms, including a 50mg tablet, a 50mg tablet, a 100mg tablet, and a 200mg tablet. Each dose should be taken with a meal to minimize the risk of stomach problems and diarrhea.
Viagra works by increasing blood flow to the penis, facilitating the erection of the penis, a beneficial aspect of sexual stimulation. The active ingredient in Viagra is sildenafil, a phosphodiesterase type 5 (PDE5) inhibitor. By inhibiting PDE5, Viagraetitive inhibitors work by preventing the enzyme PDE5 from breaking down a substance called cyclic guanosine monophosphate (cGMP). cGMP causes the smooth muscle in the blood vessels to relax, allowing blood to flow into the penis, resulting in the desired erection.
It is important to note that Viagra will not cure erectile dysfunction, and therefore, it is not recommended.uggishness is key when taking Viagra, as it allows for increased blood flow to the penis and the ability to achieve and maintain an erection in response to sexual stimulation.
Viagra is a prescription medication that is primarily used to treat erectile dysfunction (impotence) in men. It is available in various forms, including a 50mg tablet, a 50mg tablet, a 100mg tablet, and a 200mg tablet.
The traditional treatments for erectile dysfunction include the medications PDE5 and cGMP. These chemicals which control the growth and development of bacteria are important in the growth and development of new tissue cells and other cells. Taking Viagra with PDE5 inhibitor medications can cause serious health risks, including dizziness or lightheadedness, which can make it difficult to get or keep an erection. On the other hand, taking Viagra with cGMP inhibitors can result in increased blood pressure, which can also contribute to erectile dysfunction.
For example, lispro tablets which work by stopping the growth of lysosomes, are commonly used to treat erectile dysfunction. They work by inhibiting the enzyme PDE5, which is responsible for breaking down cGMP. For this reason, for this enzyme to be effective, an excessive amount of cGMP must be released into the blood. This leads to the development of blood clots. PDE5 inhibitors also help relax the smooth muscle in the penis blood vessels, allowing increased blood flow during sexual stimulation.
The cheapest erectile dysfunction (ED) pills are generic Viagra, called.
The term "generic" refers to the active ingredient of a medicine or drug rather than to the advertised brand name under which the medicine is sold. It is a term referring to any drug marketed under its chemical name without advertising.
Pfizer made the originaltablet that is often referred to as the “blue pill”.The patent expired in 2013 which then allowed other pharmaceutical manufactures to make a generic version under the name of the active ingredient called Sildenafil. They are exactly the same medically and perform in the same way with the same side-effects.
As with most branded products, Viagra is sold at a higher price,therefore the generic tablets sold asare much cheaper.
Medically there is no difference between a generic medicine and the branded medicine, as they both have the same active ingredients to make them perform in the same way. They only differ in the “bulking” agents used to fill the tablet as the amount of active ingredient required, in this case Sildenafil, is very small. This makes the tablets bigger and easier to handle.
The main difference between generic andbranded named prescription medicines is cost with generics being much cheaper
Every pharmacy can choose what price they sell at, as there are no fixed prices. It will depend on what price the pharmacy can buy the drug from the wholesaler and the cost of their own overheads. They can they decide what mark-up they require and some pharmacies choose to sell some products at higher prices.
At Webmed pharmacy we aim to keep our prices as low as possible, without compromising the quality of service, as we arethe only online pharmacy to offercourier guaranteed next working day as standard
We offer a very fast, confidential and discreet service that isby the General Pharmaceutical Council (GPhC) and the Care Quality Commission (CQC).
A large proportion of our sales are made up of returning customers as they have been delighted with our service.
When you choose to buy any prescription medication online, you must first of check that the pharmacy is with the General Pharmaceutical Council (GPhC).
All pharmacies using a UK General Medical Council, to prescribe their medicines will also be registered with the UK government Agency the Care Quality Commission (CQC).
Those online pharmacies who are not registered with the CQC either use pharmacist prescribers or foreign doctors.
You will then know and have the confidence that all the brands being offered are genuine and will work in the same way. All the pharmaceutical companies are inspected by the Medicines and Healthcare products Regulatory Agency (MHRA) to ensure they manufacturer the drugs to the same quality standard. This means that the key ingredient that is referred to as the “active” ingredient is exactly the same in all brands.
The other inactive ingredients that make up the bulk of the tablet are called “excipients” and can vary.
For those people who are allergic to or have an intolerance to lactose, then the is ideal for you as it is lactose free. You can check the additional excipients on the patient information leaflet supplied with your tablets.
Although medically all the generic tablets are identical, they may look different as they can vary in colour, shape and size due to the varying excipients.
The patent for, owned by Pfizer, expired in July 2013, which then allowed other pharmaceutical companies to produce generic. There are a number of companies now manufacturing which include Accord, Ajanta, Dr Reddy’s, Mylan, Teva, Torrent and Zentiva. Even Pfizer make a that they sell cheaper than Viagra although generally more expensive than the equivalent generic brands.
Author 19th September 2019
Active ingredientSildenafil is the active ingredient in the brand name (or generic) formulation of sildenafil. Sildenafil is the active ingredient in a a medicine called Viagra.
Viagra is classed by their chemical name public health.
Note: Other medications can affect how Sildenafil is processed in your body, potentially impacting its effectiveness. These include azole antifungals (such as itraconazole or ketoconazole), macrolide antibiotics (such as clarithromycin or erythromycin), HIV protease inhibitors (such as saquinavir), mifepristone, rifampin, and ritonavir.
Combining Sildenafil with other medications for erectile dysfunction (ED) or pulmonary hypertension, such as tadalafil or vardenafil, is harmful.
PubMed PMC odds table ( Nawf) 1 ( Sildenafil ) 2 ( Cialis ) 3 ( Staxyn and tamsulosin ) 4 ( Vardenafil ) 5 ( Sildenafil citrate ) 6 ( Cialis and tadalafil ) 7 ( Vardenafil and tadalafil ) 8 ( Staxyn and tamsulosin ) 9 ( Sildenafil citrate and tadalafil )10 ( Sildenafil citrate and tadalafil )11 ( Vardenafil and tadalafil )12 ( Cialis and tadalafil ) 13 ( Vardenafil and tadalafil )14 ( Sildenafil citrate and tadalafil )15 ( Sildenafil citrate and tadalafil )16 ( Sildenafil citrate )17 ( Sildenafil citrate and vericagem )18 ( Sildenafil citrate and vericagrel )19 ( Sildenafil citrate and tadalafil )Composition ListSildenafil is available in various forms, including prescription medications, including those that are considered appropriate only by healthcare professionals. This list is not exhaustive.
Brand Names:Cialis, Staxyn, and Vardenafil
Generic versions of Sildenafil are:
Do not use Sildenafil after the brand name Cialis unless its full patent has been protected.
Sildenafil Sildenafil is used to treat erectile dysfunction (ED), or difficulty in achieving and maintaining an erection.
Generic Sildenafil should not be used by women, children, or men who are pregnant or may become pregnant.
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