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Viagra Pills 25mg/50mg/100mg
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Viagra (also known as the blue pill) is fast acting that starts working within 60 minutes. This erectile dysfunction medication is also available as a generic product Sildenafil and as an over the counter product Viagra Connect.
Viagra Pills 25mg/50mg/100mg
Buy Viagra online
You can buy Viagra online from our UK based pharmacy, after completing an online consultation. Our parcels are dispatched in plain and discreet packaging, with next-day delivery options.
Viagra Prices
| Name & Dosage | x4 Tablets | x8 Tablets | x12 Tablets | x16 Tablets | x20 Tablets | x24 Tablets | x28 Tablets | x32 Tablets | x64 Tablets |
|---|---|---|---|---|---|---|---|---|---|
| Viagra 25mg Tablets | £24.49 | £43.49 | £61.49 | £79.49 | £96.49 | £113.49 | £130.49 | £147.49 | £292.49 |
| Viagra 50mg Tablets | £29.49 | £58.49 | £86.49 | £113.49 | £140.49 | £167.49 | £194.49 | £219.49 | £399.49 |
| Viagra 100mg Tablets | £31.99 | £61.99 | £91.99 | £119.99 | £151.99 | £179.99 | £206.99 | £232.99 | £449.99 |
Summary For Viagra Pills
| Medication class | Phosphodiesterase 5 (PDE5) inhibitor |
|---|---|
| Mechanism of action | Widens blood vessels to improve blood flow to the penis |
| Active ingredient | Sildenafil citrate |
| Strength | 25mg, 50mg, 100mg |
| Effective within | 30 - 60 minutes |
| Dosage instructions | 1 tablet around 60 minutes before sexual activity |
| Manufacturer | Pfizer |
| Use with alcohol | In moderation |
About Viagra
Key points
- To be taken 30-60 minutes before sexual activity
- Lasts for up to 4 hours
- Effective in over 60% of users
- Cheaper alternative to Viagra, containing the same active ingredient – sildenafil citrate
What is Viagra used for?
Viagra is used to treat ED in men. Viagra is the brand name given to a drug called sildenafil citrate. It was introduced to the market by Pfizer in 1998 and the little blue pill has been used by millions of men ever since. Viagra is also available in its generic form, known as just sildenafil.
It belongs to a group of drugs known as PDE5 (phosphodiesterase) inhibitors. They relax blood vessels which allows for an increased blood flow to the penis to help achieve and maintain erections.
You can also order sildenafil, which is a cheaper version of Viagra, as it is the non-branded version. It contains the same active ingredient as Viagra and is equally as effective.
How does Viagra work?
Viagra works by allowing smooth muscle in the penis to relax, increasing blood flow. This causes an erection, firm enough for sexual activity. For Viagra to work, you need to be sexually aroused.
How effective is Viagra?
Viagra works for 4 in 5 men (in other words, Viagra works for around 80% of men). Viagra does not cause a man to be sexually aroused, nor does it increase the size of a natural erection. For it to work, you need to be sexually stimulated. If you are not sexually aroused, Viagra will not work.
Clinical trials have shown that when compared to a placebo, Viagra (sildenafil), along with other drugs within the same class, produce a significant improvement in erectile dysfunction.
Viagra reviews also advocate that it is a highly effective treatment, which produces desirable results.
How long does Viagra take to work?
Viagra takes around one hour to kick in, however, this can vary depending on the individual. It also depends on the timing of your last meal. Viagra is best taken on an empty stomach (or at least two hours after a meal), as food can affect the absorption of Viagra into your blood stream.
How long does Viagra last for?
Viagra lasts for around 4-5 hours on average. You may notice that after 2-3 hours, the effects begin to wear off. If you have an erection lasting more than 4 hours (priapism), you should seek medical advice from a doctor.
Viagra ingredients
Active ingredient: Sildenafil citrate
Inactive ingredient: Hypromellose, titanium dioxide (E171), lactose monohydrate, triacetin, indigo carmine aluminum lake (E132)
Viagra alternatives
If Viagra does not work the first time you take it, UK national guidelines state that you should try again, another 7 times. It can take a while to get used to the idea of taking a tablet before sex. For those in whom Viagra isn’t working, there are other drugs belonging to the same drug class, which may work better for you.
Tadalafil – Available as a generic or under its brand name, Cialis. It takes around 30-60 minutes to work and can be effective for up to 36 hours. It is also available as a daily dosing tablet, which takes action after 3-5 days, but has an ongoing effect, allowing for spontaneous sex.
Avanafil – Available under its branded form known as Spedra. It has a quick onset of action, working in approximately 15-30 minutes. It lasts for around 30-60 minutes.
Vardenafil – Available only under its branded version known as Levitra. It is the recommended tablet for diabetics, taking 30-60 minutes to work and lasting for 4-6 hours.
What is the difference between Viagra and Cialis
Viagra and Cialis both belong to the same class of drugs, known as PDE5 inhibitors. Viagra takes 60 minutes to work and lasts for up to 4 hours.
Cialis takes 30 minutes to work and lasts for up to 36 hours.
To find out more, read our blog post looking at the differences between Cialis and Viagra.
Viagra Dosage Instructions
You should swallow one tablet with water around 60 minutes before sexual activity. Food affects the absorption of Viagra, and it is most effective when taken on an empty stomach. You should not take more than one tablet within a 24 hour period.
The recommended starting dose of Viagra is 50mg. This usually works for most men, however, if you are experiencing any unwanted side-effects (such as headaches, facial flushing and indigestion), then the 50mg tablet may be too strong and you should try reducing the dose to 25mg.
If you are not experiencing the desired results with Viagra 50mg, and you are not suffering from side effects, your doctor may increase the dose to 100mg.
Viagra 25mg tablets
Viagra 25mg is the lowest dose available. If you are experiencing side effects with Viagra 50mg or 100mg, your doctor or pharmacist may recommend that you try the 25mg strength. This will reduce the chances of getting side effects. Your doctor also may wish to start you on Viagra 25mg, if you are taking certain medication that can interact with Viagra.
Viagra 50mg tablets
Viagra 50mg is the recommended starting dose if you have not used treatment before. Many men will find that the 50mg dose is suitable and works well without side effects. If you have tried Viagra 50mg tablets on 8 separate occasions without any success, your doctor or pharmacist may suggest that you try the 100mg tablets.
Viagra 100mg tablets
Viagra 100mg is the highest dose that that you can take. This is usually prescribed for men who have limited success with the 50mg tablets and have not experienced any side effects. A higher dose tablet increases your chances of experiencing undesirable effects.
Viagra Side Effects
Like all medication, Viagra may cause side effects. These can include:
Very common (Affecting more than 10% of users):
- Headache
Common (Affecting up to 10% of users):
- Nausea
- Feeling hot
- Facial flushing
- Dizziness
- Indigestion
- Visual disturbances
- Nasal congestion
Uncommon (Affecting up to 1% of users):
- Muscle ache
- Heart palpitation
- Skin rash
- Vomiting
- High or low blood pressure
- Numbness
- Drowsiness
- Ringing in the ears
If you experience any of the following symptoms, seek urgent medical attention:
- Chest pain
- Sudden loss or change in vision
- A painful erection lasting more than 4 hours
- Seizure
- Signs of an allergic reaction such as problems breathing, severe skin reactions, or swelling of the eyes, lips, throat, or mouth
You should read the patient information leaflet supplied with your medication, for a full list of side effects. Always report side effects to your pharmacist or doctor, and in serious cases, seek urgent medical attention.
Viagra Warnings
It is not possible for us to prescribe Viagra if:
- You are allergic to sildenafil or any of the ingredients in Viagra
- You are currently using any nitrate-based medication including angina pumps or “poppers”
- You have high blood pressure in the lungs
- You have a heart condition including a history of stroke, recent heart attack or low blood pressure
- You have a liver problem
- You have an eye condition
- You have cancer of the blood or bones
- You have sickle cell anaemia or bleeding problems
- You have a condition that affects the penis formation (Peyronie’s Disease)
- You have an active stomach ulcer
This does not necessarily mean that you cannot use Viagra, but your doctor will need to asses you and prescribe Viagra only if it is safe to do so.
Viagra Interactions
You should inform your doctor or pharmacist about any other medications you are currently taking. Viagra can interact with certain medications, particularly those that are used to treat chest pain (angina).
You should not take Viagra if you are taking nitrates as this can cause a dangerous drop in blood pressure. You should also avoid Viagra if you are taking nitric oxide donors, such as “poppers”.
Viagra can be taken with most blood pressure medication, however, your doctor may start you on the lowest dose. This is particularly the case if you are taking alpha-blockers. Taking Viagra with alpha-blockers can cause dizziness and light-headedness.
Frequently Asked Questions
Viagra cannot treat premature ejaculation. It will only help you to last longer if you are unable to maintain an erection during intercourse.
Viagra is for sale over the counter in the form of Viagra Connect, which is the 50mg strength. To purchase the 25mg or 100mg strength, you will require a prescription.
Viagra will not increase your libido or sexual stimulation. For Viagra to work, you will need to be sexually aroused.
Viagra is not available on the NHS. ED can be treated on the NHS if you have certain medical condition such as diabetes and cancer. However, the generic version will be prescribed. There is a limit of 4 tablets per month.
Do not take Viagra more than once a day. This way, you are able to enjoy the benefits of Viagra, whilst keeping the side-effect profile at a minimum.
The maximum dose of Viagra is 100mg per day. Any more than this is too much and can cause harmful side effects, including a drop in blood pressure, dizziness, fainting, as well as an increased chance of experiencing other harmful side effects.
If you find that Viagra is not working for you, try again. If you have not had an erection for a while, it may take your body a while to get used to it. You should give yourself eight separate attempts of allowing your body to adjust to the idea of getting erections again and for you to find the right dose that suits you best. If after eight attempts you find that Viagra is still not working for you, do not lose hope as there are several other treatment options. You should contact your doctor or call us to speak to one of our pharmacy team. We have a team of experienced pharmacists who can guide you and provide professional advice.
Viagra and sildenafil are medically the same. Sildenafil is the active ingredient that is contained in Viagra. Since 2013, when the patent for Viagra ran out, it allowed other companies to produce Sildenafil at a fraction of the price.
Before generic drugs are awarded a UK license for sale, they must demonstrate that they are pharmaceutically the same as the branded alternative.
The ingredients in both are the same, sildenafil citrate. Viagra Connect is licensed to be sold over the counter in the 50mg strength. Viagra is available in the 25mg, 50mg, and 100mg strength, all of which require a prescription.
Viagra has been used safely for many years by millions of men around the world. It is a treatment that has been designed to help men who have erectile dysfunction. Viagra can be used safely when you have been evaluated by a qualified practitioner. Having an appropriate assessment will minimise any risks, so that you are able to use Viagra in a safe manner.
It is safe to enjoy around 2 units of alcohol whilst taking Viagra. Whilst a moderate amount of alcohol can act as a stimulant and help aide sensation, excessive alcohol consumption can act as a sedative, depressing the central nervous system (i.e. reducing signals to the brain which is an important process in achieving an erection).
Excessive alcohol consumption can decrease the amount of blood that stays in your penis, negatively affecting erections. However, moderate consumption shouldn’t cause a problem.
Viagra is only licensed to treat ED in men. It works by increasing the flow of blood to the penis, so it will not be effective for women. It is important to remember that Viagra does not increase sexual desire.
Product Reviews
product rated 4.9/5
Works really well
By Tiago Ramos (via Reviews.io)
Great product
By Ammar Mhana (via TrustPilot)
They worked quite quick and lasted for the time it said on the package
By Francisco Vaughan (via TrustPilot)
all good //////////////////////////////////
By William Boardman (via TrustPilot)
Superintendent Pharmacist
Written by Chemist Click
First created 25th April 2025
Last reviewed 10th October 2025
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