Sildenafil (generic Viagra)

Buy Sildenafil 25 mg/50 mg/100 mg online UK ~ Ashcroft Pharmacy
  • Buy Sildenafil 25 mg/50 mg/100 mg online UK ~ Ashcroft Pharmacy
  • Buy Sildenafil Online - Ashcroft Pharmacy UK
  • Buy Viagra 50 mg/100 mg online UK - Ashcroft Pharmacy

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Sildenafil (generic Viagra)

Fastest delivery:
Friday, 26 Apr 2024
  • Medication features

    (Erectile dysfunction treatment)

    Dealing with ED? Meet Sildenafil – an affordable, generic alternative to branded Viagra® that's just as effective. It is the most recommended prescription-only drug to treat ED. It contains the same active ingredient (Sildenafil Citrate) as Viagra® but comes at a 95% lower price because you aren’t paying for the brand name.

    Key Sildenafil features
    • Sildenafil makes hard easy
    • Works for most men
    • Same results, 95% cheaper
    • Available dosage (25mg, 50mg, or 100mg)
    • Suitable for men only
    • Patient leaflet

    Onset duration:

    • Faster-acting and longer-lasting
    • Effective in as little as 20 minutes
    • Can take up to an hour to work
    • Lasts up to 4-6 hrs.

    How to take:

    • Take one tablet once a day
    • Around 30-60 mins. before sex
    • Taken as-needed, not daily
    • Recommended dose 50mg
    • Max 100 mg in 24 hours.
    • Best taken on an empty stomach


    Registered UK Pharmacy Number 1039428

    Can be purchased discreetly from The Ashcroft Pharmacy UK

    • Price match guarantee
    • Next Day Delivery Available

Order Monday to Friday before 14:00pm to guarantee next day delivery

Fastest delivery: Friday, 26 Apr 2024


If you require a particular manufacturer of Sildenafil, please contact us after placing your order.

NOTE: After selecting this product, you will need to complete a short assessment, so we can make sure this medication is suitable for you.

Sildenafil (citrate)

Sildenafil sold under the brand name Viagra, is a clinically proven treatment for erectile dysfunction (ED or sexual impotence) in men. It contains Sildenafil citrate, the active ingredient grouped under phosphodiesterase 5 (PDE5) inhibitors.

These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly, which helps to increase blood flow to the penis when you are sexually stimulated, resulting in a firmer and longer-lasting erection.

How it works?

Sildenafil or Viagra temporarily increases blood flow to your penis when you're sexually aroused. When you feel sexually excited, a chemical called cGMP is released, relaxing the smooth muscles in the penis. This relaxation lets more blood flow in, leading to an erection.

Remember, It doesn't boost your sexual desire. If you're dealing with low libido, talk to your doctor or pharmacist for advice.

How to take Sildenafil?

Take one tablet around 1 hour before having sex. Food can affect how Sildenafil is absorbed, so take it on an empty stomach or with a light meal for the best results.

Sildenafil effectiveness

Sildenafil Citrate, or Viagra, the blue pill, successfully treats ED in approximately two-thirds of cases. Still, its effectiveness may decrease if you have had a big meal or consumed more than 1-2 units of alcohol.

A clinical study confirmed that 25 mg/50 mg and 100 mg of Viagra tablets significantly enhanced erection quality and treatment satisfaction, reduced anxiety levels, and improved the overall sexual experience compared to the placebo.

Remember that the Viagra tablet may not be effective on the first try. Use it at least eight times before considering other options.

If 50 mg isn't effective, consider 100 mg for better results. If 50 mg causes side effects, switch to 25 mg; it's still effective for treating erectile dysfunction.

How long does it take to start working?

Viagra/Sildenafil tablets usually start working within 30-60 minutes. The highest amount of sildenafil citrate in your bloodstream happens around 60 minutes after you take it. Still, you might begin feeling its effects in approximately 30 minutes.

How long do Sildenafil effects last?

Commonly, the impacts of sildenafil last 2-6 hrs, giving you an excellent time to engage in sexual activity with improved erectile function.

It won't keep it up indefinitely after sex. The results of Sildenafil gradually fade over time and will be gone within a day.

Is it safe?

Viagra is an FDA-approved and safe medication when used as directed. Still, it's important to note that it can interact with certain medicines.

Sometimes, these interactions can pose a risk and potentially harm health. However, there's no evidence of long-term side effects. However, if you have certain health conditions, please consult your doctor before taking it.

For more information please refer to the NHS online resource on Sildenafil (Viagra).

What if it doesn't work for me?

If Viagra doesn't work for the first time, don't give up. Try at least 8 separate occasions. Sometimes, your body needs time to get used to the medication before it starts working effectively.

Alcohol consumption, meals, and mood can influence how well it works. So, consider trying Sildenafil in various situations to find what works best.

If you find that it's still not effective after attempting it eight times, it's advisable to consult with your doctor or pharmacist.

Alternative treatments for ED

How can I get the best results from Sildenafil?

To get the best results from Sildenafil tablets, it's important to follow the directions carefully. This includes taking it on an empty stomach and not drinking too much alcohol. Sildenafil or Viagra works faster when taken on an empty stomach.

If you take it after eating, it might take longer to work, especially if you've eaten a large, high-fat meal. This is because food can slow down the absorption of the medication into your bloodstream.

Tips for using Viagra tablet:

  • Take it about an hour before you plan to have sex.
  • Avoid eating a large meal before taking it.
  • Limit your alcohol intake before or after taking sildenafil.

Other Tips include:

  • Diet changes, such as reducing alcohol and fat intake
  • Reducing stress levels
  • Quit smoking (help for this can be found on our website)
  • Talk to your doctor if you have other health conditions, such as heart disease or high blood pressure.
NameMr Suhail Jamil
RoleSuperintendent Pharmacist
GPhc Number2069518

Sildenafil Package leaflet: Information for the user PDF

For Healthcare Professionals (SmPC) PDF

More About Sildenafil



Recommended Dose

For most patients, the suggested dose is 50 mg, taken as needed, around 1 hr. before sexual activity.


Once per day.

Sildenafil 25/50/100 mg dosage for ED

Sildenafil comes in 3 different strengths: 25/50 and 100mg. 50mg is the recommended starting dose for those people who have not used this before, as it is a sufficient strength for most people with erectile dysfunction.

If you're using it for the first time, the typical dose is 50mg. Take one tablet approximately 30-60 minutes before engaging in sexual activity.

If the effects aren't as desired, you can increase the dosage to 100mg. However, before making any changes, it's recommended to consult your doctor or pharmacist.

The amount of Sildenafil you take depends on your situation. Always follow your doctor's advice or the label instructions. Learn more about Sildenafil 50 mg vs 100 mg.


It's important not to exceed the recommended maximum dosage. Taking more won't provide additional benefits and can lead to unwanted side effects.

Don't take more than 100mg of Sildenafil within 24 hours, as it can be risky and cause low blood pressure or priapism. Seek medical help if needed. For the proper dosage, Consult your doctor or pharmacist.

You might be eligible for treatment but consult your doctor first.

❌ Who shouldn't take Sildenafil?

Don't take Sildenafil if you have:

  • Certain anatomical penis deformities
  • Eye problems (excluding poor vision)
  • Sickle-cell anemia
  • Low blood pressure
  • An allergy to its ingredients
  • Recent heart issues like heart attack or stroke
  • Angina
  • Liver or kidney problems
  • Certain cancers or bleeding disorders
  • Stomach ulcers


  • Is branded Viagra better than generic sildenafil?

    Both medicines contain the same active ingredient and work in the same way. They are equally effective. The only difference between them is the cost. However, personal preference is also a factor. Therefore, some people may prefer branded Viagra to Sildenafil (generic viagra) and vice versa.

  • Is tadalafil/Cialis daily better than sildenafil/Viagra?

    Sildenafil vs Tadalafil

    Both drugs are similarly effective in treating erectile dysfunction. The better drug must be decided by personal preference.

  • Can tadalafil/Cialis daily and sildenafil/Viagra be taken together?

    No, using them together is not advised, as they can interact with each other and cause unwanted side effects.


  • How often can I take sildenafil?

    You can take one sildenafil tablet per 24 hours. Take at most four times a week.

  • Can I drink grapefruit juice if I have taken sildenafil?

    Grapefruit interacts with Sildenafil, which may increase your chances of getting side effects. Therefore, grapefruit should be avoided while taking Sildenafil.

  • Can I take 2 sildenafil tablets at once?

    No. The maximum sildenafil dose is 100mg; instead of taking two 50mg tablets, switching to the 100mg tablet is recommended and only taking one. Taking higher doses than the maximum dose will not help you achieve a better erection.

  • Can women take sildenafil?

    Sildenafil only treats ED, not libido. Don't use it if you're a woman, as it might cause unwanted effects.

  • Can I use sildenafil with other ED treatments?

    No, don't combine Sildenafil with other ED treatments. Leave 24 hours between them.

  • Is Sildenafil safe for long-term use?

    Generally safe for long-term use. Consult your doctor if you have health conditions.

  • If Sildenafil doesn't work ?

    Give it a chance by trying it eight times on separate days. Factors like food and mood can affect how it works.

  • Is sildenafil as good as Viagra?

    They're very similar, but Viagra costs more and Sildenafil at a lower cost.

  • Where can I buy Sildenafil?

    Online pharmacies, such as Ashcroft Pharmacy UK, offer Sildenafil following an online consultation. We stock various brands with no clinical differences among them.

  • Which Viagra is good for the first time?

    If you're using Viagra for the first time, starting with 50mg is usually recommended. This dose is adequate for most men and offers a good balance between desired effects and potential side effects.

    Depending on your health and any other medications you're taking, a doctor might suggest starting with 25mg in some cases.

Side Effects

Sildenafil tablet side effects

Most men can take Sildenafil without any side effects. The common ones, affecting about 10% of men, include headache, flushing, dizziness, stuffy nose, nausea, hot flush, indigestion, and temporary vision changes like blurriness or a tint.

Tips: Drinking water and avoiding alcohol can help reduce Sildenafil's side effects. You can read our Full Guide on "How to Manage Sildenafil Side Effects"


Sildenafil Tablets (25mg, 50mg & 100mg) Specification

Medicine Type

Phosphodiesterase type-5
(PDE5) inhibitors

 Works byInhibiting PDE5 enzyme increases cGMP levels, relaxing penile blood vessels, and boosting blood flow for erections.
 Main ingredient Sildenafil citrate
 Dose strength 25 mg, 50mg, 100mg
 Takes action within 30 - 60 minutes
 Pack size 4 tablets
 Manufacturer pfizer ltd
 Brand Viagra
 Generic Yes
 Alcohol warning In moderation
Sildenafil Patient Leaflet Download Patient Leaflet


Active ingredients sildenafil citrate. Each tablet contains the following inactive ingredients: microcrystalline cellulose, anhydrous dibasic calcium phosphate, croscarmellose sodium, magnesium stearate, hypromellose, titanium dioxide, lactose, and triacetin.


Once your order has been approved by our UK medical team it will be dispatched via Royal mail. All orders are sent using a tracked and signed for service.

Royal Mail 48 | £3.49

Estimated delivery within 2-3 working days. Excludes bank holidays. Not a guaranteed service.

Free delivery on orders over £50.

RM 24 (Next working day)  | £4.99

Estimated delivery within 1 working day. Excludes bank holidays. Not a guaranteed service.

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