Sildenafil Teva
From £3.99

£40 OFF First Order
£25 OFF Every Order
Understanding how food affects sildenafil absorption is crucial for optimal treatment outcomes. The BNF provides clear guidance on timing sildenafil with meals to ensure maximum effectiveness. Food interactions can significantly impact how quickly sildenafil works and its overall efficacy. This comprehensive guide explains evidence-based recommendations for taking sildenafil in relation to meals, helping you make informed decisions about your ED treatment timing.
From £3.99

From £28.99

From £22.99

From £27.99

From £44.99

From £23.99

From £8.49

From £32.99


When PDE5 is suppressed, blood is able to flow more freely through the body—including to the (you guessed it) penis.

More blood flow to the penis means harder, more satisfying erections once you're sexually stimulated.
Buying Viagra online can be safe and legal in the UK, but it depends on where you buy it from. The main risk is not buying medicine online itself. The risk comes from websites that are not properly regulated.
A search for Viagra can show both registered UK pharmacies and unlicensed websites. They may look similar, but the medicines they sell and the checks they follow can be very different.
This guide explains how to buy Viagra safely online in the UK. It covers what UK law allows, how to check whether an online pharmacy is registered, what UK health authorities have found in fake medicines, how to spot possible counterfeit Viagra, and what to do if something goes wrong with your order.
Erectile dysfunction affects around half of men aged 40 to 70, and roughly two in five men say they would avoid seeking medical advice about it. This can make some people more likely to use websites that promise Viagra without any medical checks.
Yes, buying Viagra online can be safe when you use a properly registered UK pharmacy and a UK registered prescriber reviews your health information before the medicine is supplied. You should receive a licensed medicine in the manufacturer's original packaging, with the patient information leaflet included.
However, you should avoid buying Viagra from unregistered websites, social media sellers, online marketplaces or websites selling products as "herbal" alternatives. These sellers may not follow UK medicines regulations, and there may be no reliable checks on the medicine or your suitability for treatment.
So, the important question is not simply, "Is online Viagra safe?" A better question is, "Can I check that this website is a genuine, registered pharmacy?"
Fortunately, this is something you can check before placing an order. The rest of this guide explains what to look for.
Most erectile dysfunction treatments available in the UK are prescription only medicines, often called POMs. However, some medicines for erectile dysfunction can be supplied by a pharmacy without a prescription after a pharmacist has checked that they are suitable for you.
Understanding the difference can help you identify what a legitimate online pharmacy should do before supplying treatment.
| Treatment | UK classification | What is required |
|---|---|---|
| Viagra 25mg, 50mg, 100mg | Prescription-only (POM) | Clinical assessment and a prescription from a UK-registered prescriber |
| Generic sildenafil 25mg, 50mg, 100mg | Prescription-only (POM) | Clinical assessment and a prescription |
| Cialis, Cialis Daily, tadalafil | Prescription-only (POM) | Clinical assessment and a prescription |
| Levitra, vardenafil, Spedra | Prescription-only (POM) | Clinical assessment and a prescription |
| Viagra Connect (sildenafil 50mg) | Pharmacy medicine (P) | Pharmacist consultation, men aged 18 and over, maximum pack of 8 |
| Cialis Together (tadalafil 10mg) | Pharmacy medicine (P) | Pharmacist consultation, maximum one tablet a day, maximum pack of 8 |
Viagra Connect was reclassified from a prescription only medicine to a pharmacy medicine following advice from the Commission on Human Medicines in November 2017. It became available in 2018. Cialis Together followed on 14 March 2023. Other medicines in this category remain prescription only.
This is important because a common claim is that every legitimate purchase of Viagra requires a prescription. That is not quite correct. Viagra Connect can be supplied without a prescription by a pharmacist, after the appropriate checks have been completed. This gives people another regulated option if they do not want to make a GP appointment.
Supplying a prescription only medicine without a prescription is an offence under the Human Medicines Regulations 2012. If a website offers branded Viagra, generic sildenafil, Cialis or Levitra without any health assessment or prescriber involvement, this should be treated as a warning sign.
The website may be offering medicines outside the UK regulatory system. This means you may not know whether the medicine is genuine, safe or suitable for you.
The same regulations also restrict how prescription only medicines can be advertised to the public. This is why a compliant UK pharmacy website may not display prescription erectile dysfunction medicines in the same way as ordinary products, with prices and a simple checkout available before you have been assessed.
Websites based outside the UK may not follow UK medicines regulations or be inspected by UK regulators. If something goes wrong with your order, it may also be much harder to get help or take action.
Buying prescription only medicines from an unauthorised overseas seller can put you at risk of receiving an unverified or counterfeit product. Your package may also be stopped at the border.
Legitimate cross border healthcare does exist, but it should involve appropriate clinical checks and a regulated supply process. Be cautious of websites that offer prescription medicines through an anonymous checkout, ask for cryptocurrency payments or make unusually broad delivery promises.
The General Pharmaceutical Council maintains a free public register of pharmacies legally operating in Great Britain. Checking the register can take only a few minutes.
First, find the pharmacy's GPhC registration number on its website. You will usually find it in the footer, About Us page or Contact page. The website should also provide the pharmacy's physical address.
Next, search for the pharmacy on the GPhC register and check that the details match. Look at the trading name, address and other registration details.
If the details do not match, treat this as a warning sign. The GPhC advises people to use its register to check whether a pharmacy is legally operating in Great Britain. If a pharmacy cannot be found on the register, you should not use it.
As an example, EverydayMeds is operated by OVIO LTD and lists 109 Coleman Road, Leicester, LE5 4LE, with GPhC premises registration number 9012878. These are the types of details you should be able to check against the GPhC register before ordering from an online pharmacy.
Some older online pharmacy advice tells people to look for the green EU distance selling logo, sometimes referred to as the MHRA logo. This advice is no longer current for Great Britain.
The scheme stopped applying in England, Scotland and Wales on 1 January 2021. The MHRA no longer processes applications for the scheme in Great Britain, and its online seller register now covers sellers in Northern Ireland.
This means that the absence of the logo on a Great Britain pharmacy website is not, by itself, a reason to believe the pharmacy is unsafe. The logo should not be used as your main way of checking a pharmacy either. Checking the relevant pharmacy register is a more reliable step.
Pharmacies in Northern Ireland are registered with the Pharmaceutical Society of Northern Ireland rather than the GPhC. The distance selling logo scheme also still applies there.
If you are ordering from a pharmacy based in Northern Ireland, check the pharmacy on the PSNI register before placing an order.
The MHRA's FakeMeds campaign and the GPhC highlight several warning signs that can help you identify an unsafe or fake online pharmacy.
Any one of these signs should make you stop and check the website carefully. If you notice several warning signs together, do not place an order until you have confirmed that the seller is properly registered and authorised.
| Warning sign | Why it matters |
|---|---|
| The medicine name appears in the web address | Built to capture search traffic for one drug, not to run a pharmacy service |
| Poor design, broken English or spelling errors | Regulated businesses are inspected and have professional standards to meet |
| Pop-up adverts or unsolicited emails | Regulated pharmacies do not market prescription medicines this way |
| Exaggerated claims such as "100% safe" or "no side effects" | Every effective medicine has side effects. Absolute claims are a marketing tell |
| Promises of very fast delivery before any clinical check | Speed is being sold in place of an assessment |
| Prescription medicines and prices advertised openly on the home page | Advertising prescription-only medicines to the public is illegal in the UK |
| No prescription required for a prescription-only medicine | A direct statement that the seller is operating unlawfully |
| Payment by cryptocurrency or bank transfer only | Deliberately removes the card protections you would otherwise have |
| You are asked not to name the medicine or site in your payment reference | The seller is concealing the transaction from payment providers |
| No physical street address anywhere on the site | Nobody can be inspected, complained to, or held responsible |
It is worth explaining why the sixth point can be misunderstood. Some otherwise professional looking UK websites display prescription only erectile dysfunction medicines in a product grid with prices. Some unsafe websites are also designed to look like genuine pharmacy websites.
The way a website presents these medicines can be a warning sign, so it is important to check whether the pharmacy is properly registered rather than relying on how professional the website looks.
Counterfeit Viagra has been found to contain harmful substances, including detergent and printer ink.
This is not just a theoretical concern. In a press release published on 13 February 2026, the MHRA reported seizing around 19.5 million doses of illegally supplied erectile dysfunction medicines between 2021 and 2025. The agency described the amount as enough to fill two double decker buses and enough for a single dose for three in four adult men in the UK.
Some of the seized products contained the wrong amount of active ingredient, no active ingredient, undeclared substances or potentially harmful contaminants. Testing of illegally supplied medicines in the UK has also identified substances such as mercury, arsenic, rat poison and cement.
The active ingredients found across these seizures included sildenafil, tadalafil, vardenafil and avanafil. This means that even when an illegally supplied product contains an active ingredient, it may not contain the amount or ingredients stated on the label.
Enforcement is ongoing. During 2025, the MHRA reported disrupting more than 1,500 websites and social media accounts and having more than 1,200 posts removed.
There is another risk that can be easier to overlook. Sildenafil is a vasodilator. It relaxes smooth muscle in blood vessels, increases blood flow and can lower blood pressure.
Manufacturer data for a 100mg dose found a mean maximum decrease of around 8.4 mmHg in systolic blood pressure and 5.5 mmHg in diastolic blood pressure in healthy volunteers. This effect may be well tolerated in many people, but combining sildenafil with certain medicines can cause a much greater drop in blood pressure.
Some important examples include:
It is also important to tell the prescriber about any other medicines, recreational drugs and dietary supplements you take before using Viagra.
Erectile dysfunction can sometimes be linked to other health problems, including cardiovascular disease, diabetes or hormonal conditions. A medical assessment can therefore do more than check whether a medicine is suitable. It can also give you an opportunity to discuss symptoms that may need further investigation.
Generic and counterfeit medicines are not the same thing. Understanding the difference can help you avoid paying more than necessary while still choosing a regulated medicine.
Licensed generic sildenafil contains sildenafil citrate, the same active ingredient used in branded Viagra. It must meet the required standards for quality, strength, safety and effectiveness.
Generic medicines can cost less because the original patent protection has expired. A lower price does not mean that the medicine has been diluted or is automatically lower quality.
When supplied by a registered pharmacy and prescribed appropriately, generic sildenafil is considered an authorised alternative to branded Viagra. It works in the same general way because it contains the same active ingredient.
Generic sildenafil remains a prescription only medicine in the UK. This means the same requirements around medical assessment and using a registered pharmacy apply.
Unlicensed sildenafil sold through overseas websites is different. If the product is not authorised for UK supply and is being sold outside the regulated pharmacy system, there is no reliable way to confirm its quality, contents or source.
The difficult truth is that you may not be able to identify counterfeit Viagra just by looking at it. Counterfeit packaging can look very similar to genuine packaging, which is why checking the source of the medicine is more reliable than relying on its appearance.
However, there are still some things you can check when your medicine arrives:
If you think your medicine may be counterfeit, stop taking it and keep the packaging. You can report suspected fake medicines and suspected side effects through the MHRA Yellow Card scheme. You should also speak to your GP or pharmacist about what you have taken, particularly if you feel unwell.
One important point is that a genuine online consultation should involve more than completing a questionnaire. GPhC guidance for online pharmacy services was updated in February 2025 and states that prescribing should not be based only on information provided through a questionnaire. The prescriber should be able to verify the information provided and have a suitable way to communicate with the patient.
This is one of the most useful things to check when choosing an online service. If a website appears to approve every request without any meaningful clinical review, it may not be providing an appropriate assessment.
It is also worth being careful with claims about how quickly a consultation can be completed. Some providers offer a free online consultation before a prescription is issued. A short form is not necessarily a problem. However, the process should still involve a proper clinical review by an appropriately qualified prescriber.
If you want to understand how the process works, you can start an online ED assessment and review the steps before deciding whether to continue.
Checking for complaints about an online pharmacy before you order can be useful. However, read reviews carefully. Reviews are self selected and can sometimes be misleading or difficult to verify. Give more weight to the pharmacy's registration, clinical process and published complaints procedure.
Before ordering, take a few minutes to read the pharmacy's complaints procedure, returns policy and delivery policy. Clear and accessible information about these areas can help you understand how the pharmacy operates if you need support after placing an order.
This article is provided for general information only and does not constitute medical advice. It is not a substitute for a consultation with a qualified healthcare professional.
Erectile dysfunction can have physical or psychological causes, some of which may need further investigation. Prescription only medicines, including Viagra and sildenafil, should be used under the supervision of an appropriately qualified prescriber. Whether treatment is suitable depends on your individual health, including any other medicines, supplements and herbal remedies you use.
Do not start, stop or change any medicine based on the information in this article. Erectile dysfunction medicines can interact with other medicines, dietary supplements and herbal remedies, so speak to a healthcare professional before starting treatment.
If you experience chest pain, an erection lasting more than four hours, sudden loss of vision or hearing, or symptoms of a severe allergic reaction, seek urgent medical attention.
It's one of the most common conditions we treat, and one of the most treatable.
Achieve your goals in just a few simple steps.
Select safe UK treatments. Quick answers.
Our expert team will use your consultation as the basis of our recommendation and communicate with you.
We’ll deliver direct to you, as quickly as tomorrow.