Sildenafil (Generic Viagra)

Buy Sildenafil Online To Effectively Treat Erectile Dysfunction

Sildenafil (Generic Viagra)
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Generic Sildenafil is medically equivalent to Viagra but is available at a lower price.
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Sildenafil Product Information

Sildenafil is used to help men who have trouble achieving or maintaining their erection. Its active ingredient sildenafil belongs to a group of medications known as phosphodiesterase type 5 inhibitors (PDE5). Sildenafil helps relax the blood vessels in the penis, which, in the presence of sexual stimulation, allows blood to flow into the penis and helps with achieving or maintaining an erection.

Sildenafil (Viagra) works by inhibiting the action of a chemical called Phosphodiesterase type-5 (PDE5). When released by the body, PDE5 contributes to the loss of an erection by causing a reduction in blood flow to the penis. Sildenafil (Viagra) works by blocking the effect of PDE5 to increase blood flow, helping the patient to achieve an erection and maintain it for longer.

The recommended starting dose is 50mg of the treatment once a day maximum (24 hours). For optimal effectiveness, consume Sildenafil whole with water on an empty stomach, one hour before engaging in sexual activity. Consuming food before taking the medication can delay absorption, resulting in it taking longer to work. Eating an hour after taking the pill will not affect its activity.

Sildenafil takes approximately 1 hour to work. It will not work without sexual stimulation.

Sildenafil works with sexual stimulation and its effects can last about four hours. This does not mean that you will have an erection for four hours, but rather that you have the potential for an improved erection as long as the drug lasts in your body.

You can buy Sildenafil from some UK pharmacies after a consultation with the pharmacist. However, not all pharmacists and pharmacies offer this service.

Watch our patient care expert explain everything you need to know about Sildenafil.

Sildenafil FAQs

Sildenafil Citrate is the active ingredient found in the erectile dysfunction medication Viagra. Since Pfizer’s patent on Sildenafil expired, other manufacturers have been able to produce a generic form of the medication which is generally available at a much lower cost. Sildenafil is available in three strengths: 25mg, 50mg and 100mg.

For most men, Sildenafil (Viagra) remains effective in the body for up to four hours. Sildenafil (Viagra) will reach peak effectiveness around thirty minutes after taking the tablet and usually last for up to four hours before the effectiveness starts to diminish.

Sildenafil (Viagra) is a medication primarily used to treat erectile dysfunction. Erectile dysfunction can be caused by a problem with one of the many complex biological or psychological processes responsible for achieving and maintaining an erection. Sildenafil (Viagra) is used to treat erectile dysfunction by increasing blood flow to the penis during sexual arousal.

Sildenafil (Viagra) starts to work in the body after just 30 minutes. Sildenafil (Viagra) can take longer to work if the tablet has been taken with food. For Sildenafil (Viagra) to work and cause the patient to get an erection, they will need to be sexually aroused.

Viagra contains the active ingredient Sildenafil Citrate. Viagra is produced by the pharmaceutical company Pfizer. The generic Sildenafil has been available for alternative manufacturers to produce since the Pfizer patent for Viagra expired. Medically, Sildenafil and Viagra are equivalent as they both contain Sildenafil Citrate, however, the excipients used to formulate the tablets may differ.

You should not take Sildenafil with any other PDE5 inhibitor unless specifically instructed by your doctor. If you would like to try different ED medications, you can do as long as only 1 tablet is taken in a 24 hour period. You can see our specially priced ED Trial Packs here

Originally, Sildenafil was manufactured under the brand name of Viagra by the company Pfizer. Sildenafil is now able to be manufactured by other companies as the original product patent by Pfizer has now expired. There are many manufacturers that currently produce Sildenafil to be sold in the UK market.

Sildenafil (Viagra) is used to treat erectile dysfunction (ED) and will not directly help with premature ejaculation (PE). An alternative medication that has been proven to help with premature ejaculation is Dapoxetine (Priligy), which can be found here.

Taking Sildenafil (Viagra) with alcohol is not recommended for a number of reasons. Taking Sildenafil (Viagra) with alcohol can increase your risk of experiencing side effects, it could also adversely affect your ability to achieve and maintain an erection.

Sildenafil (Viagra) is not intended for use as a daily medication. Sildenafil (Viagra) has an effective time frame of four hours and should be taken as and when required, at least thirty minutes before intercourse. For a longer lasting daily effect, Tadalafil (Cialis) is available in a daily dose and is equally as effective as Sildenafil (Viagra) or Sildenafil (Viagra Connect).

 

Sildenafil (Generic Viagra) Overview

Sildenafil (Generic Viagra)
Strength 25 mg
50 mg
100 mg
How long it lasts Up to 4 hours
Dosage One tablet an hour before
How fast it works 30 - 60 minutes
Active Ingredient Sildenafil

Common Side Effects

  • pain in your back/muscles/head
  • migraines
  • getting flushed/going red
  • indigestion
  • feeling and or being sick
  • getting a blocked or runny nose
  • vision disturbances

 Information Leaflet

Always read the patient information leaflet before commencing treatment.

Written and reviewed by our qualified team

GPhC Number: 2088658

Ana Carolina Goncalves
Authored by: Ana Carolina Goncalves Superintendent
Pharmacist

GPhC Number: 2225869

Rehma Gill
Reviewed by: Rehma Gill Pharmacy
Manager

Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 18 Feb 2025

Sildenafil Reviews

Overall Rating
9.6 / 10
Ratings Distribution
5 stars
21,739
4 stars
3,296
3 stars
560
2 stars
86
1 star
263

Based on 25,943 independent customer reviews taken by Feefo, Google and Trustpilot.

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Product Review:

Does what it's supposed to

Review from: Trustpilot

TickVerified Buyer

Product Review:

Excellent

Review from: Feefo

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Product Review:

Very effective product

Service Review:

Very professional service
& fast delivery

Review from: Feefo

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Product Review:

I have found this product very helpful.
I would recommend drinking plenty of water with the tablet.
I found that I get indigestion if I don't drink water.
I would recommend this, if ED is causing you problems.
It definitely works.

Service Review:

Product always arrives on time very well packed.
Never had a problem.
Good service.

Review from: Feefo

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Product Review:

Good price , quick delivery, what more can you want!

Review from: Feefo

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"My orders come quickly and well packaged and nd"

Product Review:

I very happy with it as it does the work

Service Review:

My orders come well packaged and

Review from: Trustpilot

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"Easy page to order and fast delivery."

Product Review:

Does the job

Service Review:

Easy page to order and fast delivery.

Review from: Trustpilot

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Product Review:

Excellent

Service Review:

Always on time,
Never late...

Review from: Feefo

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Product Review:

As Above

Review from: Feefo

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"Great the pills were marvellous"

Product Review:

I really enjoyed my experience with the pills and will definitely buy them again

Service Review:

Great the pills were marvellous

Review from: Trustpilot

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Discreet service

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Your privacy is important to us. That’s why we’ve taken every step to ensure your order arrives in the most discreet way possible.

From start to finish, your purchase is handled with complete confidentiality. You’ll never see our brand name on your bank statement, bills or delivery papers.

All our parcels are sent in plain, unmarked packaging with no logos, no product descriptions and no indication of what’s inside.

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