Sildenafil 100mg - 4 Tablets
They help improve blood flow to the penis, making it easier to achieve and maintain an erection when sexually aroused.
| Dosage (mg) | Typical Use | Onset Time | Duration of Effect |
|---|---|---|---|
| 25 | Mild erectile dysfunction | 30-60 min | Up to 4 hours |
| 50 | Moderate erectile issues | 30-60 min | Up to 4-6 hours |
| 100 | Severe ED | 30-60 min | Up to 4-6 hours |
Sildenafil does not cause an erection on its own — sexual stimulation is still required. It is a popular and trusted option, known for its reliability and effectiveness.
What side effects could I expect?
“It is also considered that there is a low risk of direct danger and of intentional abuse that will lead to a danger to human health.” The MHRA highlights the benefits that pharmacy supply of sildenafil would bring, which it says outweighs the risks involved, “bringing a hard to reach group into healthcare environment with the potential to increase earlier identification of heart disease and also reducing the risks associated with use of counterfeits obtained via the internet”. Berkeley Phillips, medical director at Pfizer UK, says reclassifying the product as a P medicine “could offer men a new and additional way to access a legitimate, long established, and well-studied treatment for erectile dysfunction”. “This could have further benefits as the condition may be an early warning sign of a more serious underlying condition, such as heart disease, which may otherwise go undetected,” he adds. The company confirmed that if the proposal goes ahead the product will also still be available on prescription. The Royal Pharmaceutical Society (RPS), the professional leadership body for pharmacists in Great Britain, supports the MHRA’s reclassification proposal.
Your expert team
Martin Astbury, its president, says: “The potential switch… increases access to a medicine that has been proven to be safe and effective when used appropriately through over a decade of real-world use by millions of men.” He adds that the move will help identify more men who may be at risk of cardiovascular disease whom pharmacists will be able to refer to GPs. “It will also help improve medicines safety as sildenafil is one of the most counterfeited medicines.” If the product is reclassified, Astbury says the RPS will provide advice and guidance to pharmacists about the treatment of erectile dysfunction. When you get aroused, your body produces a molecule called cGMP which helps to stimulate an erection by increasing blood flow to the penis.1 All content on this page has been medically reviewed by: Hassan Thwaini, Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm) on 30 March, 2026. Viagra Connect was the first erectile dysfunction (ED) treatment available in the UK without a prescription. It contains sildenafil, the same active ingredient found in prescription Viagra, which is a medicine that’s been trusted by millions of men worldwide since it first came to market in the late 1990s. Sildenafil can be taken with or without food, but heavy or fatty meals may slow its absorption.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Kamagra | 100mg | 84 + 6 Pills | 264.44€ 251.85€ | |
| Viagra Generic | 50mg | 20 Pills | 40.52€ 38.59€ | |
| Viagra Generic | 50mg | 30 + 4 Pills | 54.26€ 51.68€ | |
| Viagra Generic | 150mg | 60 + 4 Pills | 111.25€ 105.95€ | |
| Viagra Generic | 150mg | 270 + 10 Pills | 326.61€ 311.06€ | |
| Viagra Generic | 200mg | 270 + 10 Pills | 379.76€ 361.68€ | |
| Kamagra Polo | 100mg | 120 + 6 Pills | 327.15€ 311.57€ | |
| Kamagra | 100mg | 180 + 6 Pills | 436.79€ 415.99€ | |
| Viagra Generic | 50mg | 180 + 8 Pills | 158.82€ 151.26€ | |
| Kamagra Polo | 100mg | 12 Pills | 60.21€ 57.34€ | |
| Viagra Generic | 200mg | 10 Pills | 40.96€ 39.01€ | |
| Viagra Generic | 100mg | 60 + 4 Pills | 96.36€ 91.77€ | |
| Viagra Generic | 100mg | 90 + 6 Pills | 129.02€ 122.88€ | |
| Viagra Generic | 100mg | 20 Pills | 45.58€ 43.41€ | |
| Kamagra Oral Jelly | 100mg | 220 + 18 Sachets | 662.24€ 630.70€ | |
| Viagra Generic | 25mg | 30 + 4 Pills | 47.97€ 45.69€ |
Take one tablet about 30–60 minutes before sexual activity. Do not take more than one tablet in 24 hours. Always use as directed by your healthcare professional.
| Regulation Aspect | Details | Notes |
|---|---|---|
| Prescription Needed | Required for purchase in pharmacies | Non-prescription online sales illegal |
| Age Restriction | Must be 18 or older | Enforces age limit |
| Online Sale Laws | Strict controls, licensed online pharmacies | Verify seller credentials |
| Import Restrictions | Limited to personal use, customs checks | Possible delays |
Not suitable if you are taking nitrate medicines or certain heart medications. Always read the patient leaflet and follow medical advice.
What is Sildenafil Citrate?
Launched as an over-the-counter option in 2018, Viagra Connect was developed to make ED treatment more accessible and discreet. Instead of needing a GP appointment, it can now be purchased directly following a short consultation or assessment with a pharmacist. Viagra Connect, which contains sildenafil, typically takes around 30-60 minutes to start working and lasts for up to 4 hours.1 When you get aroused, your body produces a molecule called cGMP which helps to stimulate an erection by increasing blood flow to the penis.1 However, for people experiencing erectile difficulties, an enzyme known as PDE5 normally breaks cGMP down, restricting blood flow and causing the erection to subside.1 Viagra Connect blocks the action of PDE5, allowing more blood to flow to the penis. The resulting erection is firmer and usually lasts long enough to allow for satisfying sex.1 The difference between Viagra and Viagra Connect is that Viagra is only available via a prescription, whereas Viagra Connect can be bought over the counter without a prescription. We’re a holistic health platform built to help you take control, with treatment, guidance, and ongoing support that actually works.
Interactions & precautions
When you choose Viagra Connect with Numan, you’re not just getting medication, but complete care designed to help you perform your best. Complete a Numan Erectile Dysfunction Blood Test to uncover underlying causes such as low testosterone or cardiovascular risk factors, so you can get more effective treatment. Get access to our doctors and clinicians should you require any medical help with your treatment. If hormone issues related to erectile dysfunction are suspected, Numan offers access to a dedicated team who provide personalised treatment, monitoring, and support. All treatments are shipped quickly for free, in discreet canadian sildenafil citrate packaging directly to your desired address. Erectile dysfunction is the persistent difficulty in sildenafil citrate sublingual tablets 100mg achieving or maintaining an erection sufficient for satisfactory sexual activity.
How to Use
And if plans change, so can your delivery, all online. With thousands of successful patients behind us, our approach is tried, tested, and trusted. Viagra Connect has the same side effect profile as both Viagra and generic sildenafil. Some of these side effects can be found in the table below, and for a full list of side effects, please read the Patient Information Leaflet found in each box.2 Find the clinically proven ED treatment that suits you best. Specialists in medicine, nutrition, performance, and diagnostics.
Your questions answered
BSc (Hons) MBBS MRCGP AFHEA MA (Hons) AFMCP Viagra Connect 50 mg film-coated tablets. Viagra Connect 50 mg film-coated tablets. 2nd in the world, 1st in the UK and Europe Viagra remains one of the most trusted treatments for erectile dysfunction in the UK, helping men regain confidence and intimacy Imperial's Schools of Convergence Science facilitate mission-led tips for safe ED medication purchases online, transdisciplinary work and unique combinations of knowledge in order to further our Science for Humanity strategy. How we shape the future – for our students, our community, our planet and everyone who calls it home. A gift to Imperial can provide vital bursaries, scholarships and a lifeline to a student in financial difficulty. It is a common condition and can have physical, psychological, or mixed causes. ED may be associated with underlying medical conditions such as cardiovascular disease, diabetes, high blood pressure, hormonal imbalance, or mental health factors such as stress or anxiety. A clinical assessment is required to determine suitability for treatment. For some individuals, prescription medicines may be appropriate.
| Review Aspect | Positive Comments | Negative Comments |
|---|---|---|
| Price | Affordable options; discounts available | Sometimes higher prices at local stores |
| Delivery Speed | Fast, discreet packaging | Occasional delays due to customs |
| Product Quality | Many report genuine products | Some encountered counterfeit items |
| Customer Support | Responsive, helpful staff | Difficulties with refunds |
These medicines work by improving blood flow to the penis during sexual stimulation.
- Having realistic expectations about what Sildenafil can do is important.
- It facilitates an erection but does not automatically create one.
- Sexual stimulation is still required for the medication to be effective.
- It does not protect against sexually transmitted infections (STIs).
- Practice safe sex by using condoms to reduce the risk of STIs.
- It does not increase sexual desire or libido.
- If low libido is the primary issue, other underlying causes should be explored.
- Testosterone levels can be checked by a doctor if low libido is a concern.
- Hormone replacement therapy may be an option if levels are low.
They are not suitable for everyone and must only be supplied following a clinical assessment.
Non-medical use
Check access to the full text by signing in through your organization. Bismuth film electrode for stripping voltammetric measurement of sildenafil citrate2012, Electrochimica ActaCitation Excerpt :It has been proposed that the anodic voltammetric signals of SC at the bare GCE, recorded at ca 1.0 V and 1.2 V vs. Ag/AgCl in acetate buffer solution (pH 4.7) containing 30% of acetonitrile, are attributed to the oxidation of the piperazine ring of the SC molecule [13]. For the cathodic processes, observed at the mercury electrode at approximately −1.05 V and −1.15 vs. Ag/AgCl in 0.01 M HClO4 (pH 2) [14], and also at the GCE at ca −1.4 V [13], the reduction of the sulfonyl group was suggested by Rodriguez et al.
Sildenafil: the science
[14,15], but opposed by Zuman et al. [13], yet neither of these claims were supported by a clear experimental evidence. Our initial experiments were focused on the comparative examination of SC using cyclic voltammetry in combination with the bare glassy carbon electrode and the sildenafil citrate tablets 50mg ex situ prepared bismuth film electrode with the potential scanning in the negative direction in the range of −0.3 V to −1.5 V. It has been proposed that the anodic voltammetric signals of SC at the bare GCE, recorded at ca 1.0 V and 1.2 V vs. Ag/AgCl in acetate buffer solution (pH 4.7) containing 30% of acetonitrile, are attributed to the oxidation of the piperazine ring of the SC molecule [13]. Erectile dysfunction medicines are classified as Prescription Only Medicines (POMs) under UK law.
- Purchasing sildenafil in the UK online can be convenient but requires caution.
- Always verify the legitimacy of online sources before entering personal or payment details.
- Check if the online pharmacy is registered with the General Pharmaceutical Council (GPhC).
- It’s advisable to have a recent health check-up before starting sildenafil.
- Ensure the website provides clear contact information and customer support.
- Some UK online pharmacies offer discreet packaging to protect your privacy.
- Expect to provide proof of prescription when ordering from certain licensed pharmacies.
- Confirm the return and refund policies before finalizing your purchase.
- Read and understand all medication instructions included with your sildenafil order.
- Avoid sharing medications with others, as individual health needs vary.
This ensures they are supplied safely and appropriately, following an assessment by a qualified prescriber, in line with MHRA regulations.
Support Imperial with a gift today
Spectrophotometric determination of sildenafil citrate in pure form and in pharmaceutical formulation using some chromotropic acid azo dyes2010, Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy Gold nanoparticles-modified screen-printed carbon electrode for voltammetric determination of sildenafil citrate (Viagra) in pure form, biological and pharmaceutical formulations2015, International Journal of Electrochemical Science Determination of sildenafil citrate (Viagra®) in various pharmaceutical formulations by flow injection analysis with multiple pulse amperometric detection2012, Journal of the Brazilian Chemical Society Continuous potentiometric monitoring of viagra (sildenafil) in pharmaceutical preparations using novel membrane sensors2006, Journal of Applied Electrochemistry Erectile dysfunction (ED) is a common condition where a man has difficulty getting or maintaining an erection firm enough for sexual activity. It can happen at any age and may be linked to stress, anxiety, tiredness, lifestyle factors, or reduced blood flow. ED is very common and nothing to be embarrassed about. With the right treatment, many men are able to restore confidence and enjoy a healthy, satisfying sex life. Sildenafil tablets are a well-established treatment for erectile dysfunction. You will be asked to complete an online medical questionnaire covering your symptoms, medical history, and any medicines you are currently taking.