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Pricing Disclaimer: Prices on some pages may not be up to date — the live pricing table below and pricing shown during consultation are official current prices and take precedence over any other figures on the site.

Sildenafil - UK-licensed prescription Treatment
Treatment

Sildenafil

From £0.45

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Tadalafil - UK-licensed prescription Treatment
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Tadalafil

From £9.99

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Sildenafil Eropid - UK-licensed prescription Treatment
Treatment

Sildenafil Eropid

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Tadalafil (Teva) - UK-licensed prescription Treatment
Treatment

Tadalafil (Teva)

From £9.99

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Avarante Tablets Tadalafil Tablets 10mg - UK-licensed prescription Treatment
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Avarante Tablets Tadalafil Tablets 10mg

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Viagra Connect 50mg - UK-licensed prescription Treatment
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Viagra Connect 50mg

From £11.49

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Buy Viagra Online UK: Safe, Discreet & Clinically Approved

Published on: June 03, 2026

Looking to buy Viagra online UK with confidence? At Cured Pharmacy, we provide genuine UK-licensed sildenafil and Viagra Connect through our registered clinical team, with transparent pricing from £0.45 and discreet next-day delivery. Every treatment requires a free online consultation with a UK prescriber to ensure safety and suitability.

How Viagra Works for Erectile Dysfunction

Viagra contains sildenafil citrate, a phosphodiesterase type 5 (PDE5) inhibitor that enhances blood flow to the penis during sexual stimulation [1]. It works by blocking the enzyme that breaks down cyclic guanosine monophosphate (cGMP), a molecule that relaxes smooth muscle tissue in the penile arteries.

In pivotal clinical trials, sildenafil improved erectile function in approximately 82% of men with erectile dysfunction across various underlying causes, including diabetes, cardiovascular disease, and psychological factors [1]. The medication typically takes effect within 30–60 minutes and remains active for up to four hours, though this varies between individuals.

It's important to understand that sildenafil does not create spontaneous erections — sexual arousal is still required for the medication to work effectively. This mechanism ensures the treatment supports natural physiological responses rather than replacing them.

Sildenafil vs Viagra: Understanding the Difference

The terms are often used interchangeably, but there's a straightforward distinction: Viagra is the branded version manufactured by Pfizer, while sildenafil is the generic equivalent containing the identical active ingredient at the same therapeutic doses [2].

Both medications are bioequivalent, meaning they work identically in the body and produce the same clinical outcomes. The primary difference lies in cost — generic sildenafil offers the same efficacy at a fraction of the price, with our pharmacy dispensing it from £0.45 per tablet.

At Cured Pharmacy, we stock both branded Viagra Connect (available over-the-counter for suitable patients) and prescription-strength sildenafil in 25mg, 50mg, and 100mg doses. Your UK prescriber will recommend the appropriate strength based on your medical history, current medications, and treatment goals.

Choosing Between Brand and Generic

Many patients initially request branded Viagra due to familiarity, but after understanding the equivalence, most opt for generic sildenafil given the substantial cost savings. Both options are MHRA-licensed, manufactured to identical pharmaceutical standards, and subject to the same rigorous quality controls. The choice ultimately comes down to personal preference and budget, with no difference in therapeutic benefit.

Viagra Dosage: Finding Your Optimal Strength

Sildenafil is available in three standard strengths: 25mg, 50mg, and 100mg. The recommended starting dose for most men is 50mg, taken approximately one hour before sexual activity [3]. Based on efficacy and tolerability, your prescriber may adjust this to 25mg (if side effects occur) or 100mg (if response is insufficient).

Clinical evidence shows that higher doses correlate with improved response rates, but also increased likelihood of side effects such as headache, flushing, and nasal congestion [3]. The 100mg dose produced successful intercourse attempts in 69% of men compared to 22% on placebo, but individual response varies significantly.

Timing matters: taking sildenafil on an empty stomach allows faster absorption, while high-fat meals can delay onset by up to an hour. The medication should not be taken more than once in a 24-hour period, and alcohol consumption should be limited as it can reduce effectiveness and increase side effects.

Adjusting Your Dose Safely

Never adjust your sildenafil dose without consulting your prescriber. What works for one patient may be inappropriate for another due to underlying health conditions, concurrent medications, or cardiovascular considerations. Our clinical team at Cured Pharmacy reviews each case individually and provides personalised dosing guidance as part of your ongoing care.

Treatment Active Ingredient Duration Starting Price
Sildenafil Sildenafil citrate 4–6 hours From £0.45
Viagra Connect Sildenafil citrate 4–6 hours From £11.49
Tadalafil Tadalafil Up to 36 hours From £9.99
Cialis (branded) Tadalafil Up to 36 hours From £53.00

Tadalafil vs Sildenafil: Comparing PDE5 Inhibitors

While sildenafil remains the most prescribed erectile dysfunction treatment in the UK, tadalafil offers a distinct pharmacological profile that suits certain patients better. The key difference lies in duration: sildenafil works for approximately 4–6 hours, while tadalafil remains effective for up to 36 hours [4].

This extended window has earned tadalafil the nickname 'the weekend pill,' allowing for more spontaneous sexual activity without timing constraints. However, sildenafil's shorter duration can be preferable for men who want more control over when the medication is active in their system.

Both medications belong to the same drug class and share similar side effect profiles, though some patients tolerate one better than the other. Tadalafil can also be taken daily at a lower dose (2.5mg or 5mg) for continuous erectile support, whereas sildenafil is typically used on-demand. We stock both options, with tadalafil available from £0.45.

Safety Considerations and Who Cannot Take Viagra

Sildenafil is contraindicated in men taking nitrate medications (commonly prescribed for angina) due to the risk of severe, potentially life-threatening hypotension [1]. This interaction is absolute — the two drug classes must never be combined, even if doses are separated by hours.

Other important contraindications include recent stroke or heart attack (within 6 months), severe liver impairment, hereditary retinal disorders, and uncontrolled hypertension or hypotension. Men taking alpha-blockers for prostate conditions require careful dose adjustment and monitoring due to additive blood pressure effects.

Common side effects include headache (16% of users), facial flushing (10%), dyspepsia (7%), and nasal congestion (4%) [3]. These are generally mild and transient. Rare but serious side effects requiring immediate medical attention include sudden vision or hearing loss, priapism (erection lasting over 4 hours), and chest pain during sexual activity. Our consultation process screens for all contraindications before any prescription is issued.

Drug Interactions to Discuss

Beyond nitrates, sildenafil interacts with certain antifungals, antibiotics, HIV protease inhibitors, and other medications metabolised by the CYP3A4 enzyme pathway. Always disclose your complete medication list during your online consultation, including over-the-counter products and herbal supplements. Our prescribers will assess potential interactions and adjust dosing accordingly or recommend alternative treatments if necessary.

How to Buy Viagra Online UK Safely Through Cured Pharmacy

Purchasing erectile dysfunction medication online requires vigilance — the UK medicines regulator (MHRA) estimates that up to 62% of ED medicines bought online are counterfeit [5]. These fake products may contain incorrect doses, dangerous contaminants, or no active ingredient at all, posing serious health risks.

At Cured Pharmacy, we're a fully registered UK pharmacy (GPhC 9012511) under the supervision of Superintendent Pharmacist Tarun Kumar (GPhC 2233073). Every medication is sourced directly from UK-licensed wholesalers and dispensed from our registered premises. Our three-step process ensures clinical safety: complete a medical questionnaire, receive prescriber review within hours, and get discreet delivery to your door.

Prices are transparent before you begin — sildenafil starts from £0.45 per tablet with no hidden fees or subscription traps. We guarantee the lowest prices in the UK, and if you find genuine licensed medication cheaper elsewhere, we'll match it. All packaging is plain and discreet, with no external indication of contents, and delivery is available next-day across the UK.

Scientific References

  1. Goldstein, I., Lue, T. F., Padma-Nathan, H., Rosen, R. C., Steers, W. D., & Wicker, P. A. (1998). Oral sildenafil in the treatment of erectile dysfunction. New England Journal of Medicine, 338(20), 1397–1404. https://doi.org/10.1056/NEJM199805143382001 [accessed 13 August 2026]
  2. Medicines and Healthcare products Regulatory Agency. (2020). Sildenafil: Summary of Product Characteristics. GOV.UK. Retrieved from https://www.gov.uk/government/organisations/medicines-and-healthcare-products-regulatory-agency [accessed 13 August 2026]
  3. Morales, A., Gingell, C., Collins, M., Wicker, P. A., & Osterloh, I. H. (1998). Clinical safety of oral sildenafil citrate (Viagra) in the treatment of erectile dysfunction. International Journal of Impotence Research, 10(2), 69–74. https://doi.org/10.1038/sj.ijir.3900355 [accessed 13 August 2026]
  4. Carson, C. C., & Lue, T. F. (2005). Phosphodiesterase type 5 inhibitors for erectile dysfunction. BJU International, 96(3), 257–280. https://doi.org/10.1111/j.1464-410X.2005.05614.x [accessed 13 August 2026]
  5. Medicines and Healthcare products Regulatory Agency. (2019). Fake medicines: What you need to know. GOV.UK. Retrieved from https://www.gov.uk/government/publications/fake-medicines [accessed 13 August 2026]
  6. NHS. (2026). Erectile dysfunction (impotence). https://www.nhs.uk/conditions/erection-problems-erectile-dysfunction/ Accessed 13 August 2026.

Information on this page is for educational purposes only and is not medical advice. All prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting any new medication.

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Faq

How much does Viagra cost in the UK?
Generic sildenafil starts from £0.45 per tablet at Cured Pharmacy, while branded Viagra Connect starts from £0.45. Prices vary based on strength and quantity, with all costs shown upfront before consultation.
Can I buy Viagra online UK without seeing a doctor?
No face-to-face appointment is required, but all erectile dysfunction medications are prescription-only and require clinical assessment by a UK prescriber. Our free online consultation takes under 3 minutes and is reviewed by qualified clinicians.
Is it legal to buy Viagra online in the UK?
Yes, when purchased through a GPhC-registered pharmacy like Cured Pharmacy with a valid prescription from a UK prescriber. Buying from unregistered websites or without a prescription is illegal and dangerous.
How quickly does Viagra work?
Sildenafil typically takes effect within 30–60 minutes when taken on an empty stomach, with peak plasma concentrations reached around 60 minutes post-dose. High-fat meals can delay absorption by up to an hour.
What's the difference between Viagra 50mg and 100mg?
The 100mg dose provides stronger effect and higher success rates but also increases the likelihood of side effects. Most men start with 50mg, with dose adjusted based on individual response and tolerability under prescriber guidance.
Can I take Viagra with alcohol?
Small amounts of alcohol are generally safe, but excessive drinking can reduce the effectiveness of sildenafil and increase the risk of side effects such as dizziness, headache, and low blood pressure. Moderation is advised.
How long does Viagra last in your system?
Sildenafil has a half-life of approximately 4 hours, meaning erectile function support typically lasts 4–6 hours after taking the medication. Effects vary based on individual metabolism, age, and other health factors.
Will my Viagra delivery be discreet?
Yes. All orders from Cured Pharmacy arrive in plain, unmarked packaging with no indication of contents or pharmacy name on the exterior. Delivery requires signature for security but maintains complete discretion.
How much does Viagra cost at Cured Pharmacy?
Viagra is available at Cured Pharmacy from just £0.45 per tablet, with pricing varying based on strength and quantity ordered. Our transparent pricing includes free online consultation with a UK-registered prescriber, ensuring you get genuine medication at competitive rates.
Can I purchase Viagra online without seeing a doctor in person?
Yes, you can purchase Viagra online through Cured Pharmacy by completing a free online consultation with our UK-registered prescribers. This convenient service eliminates the need for an in-person GP appointment while ensuring the medication is safe and suitable for you.
How quickly can I get Viagra delivered in the UK?
Cured Pharmacy offers next-day delivery across the UK when you order Viagra before our cut-off time. All medications are dispatched in discreet, unmarked packaging to protect your privacy, with tracked delivery options available.
Is Viagra safe to use long term for erectile dysfunction?
Viagra is safe for long-term use when taken as prescribed and monitored by healthcare professionals. At Cured Pharmacy, our team regularly reviews your treatment to ensure it remains appropriate and effective for your ongoing needs.
What is the difference between Viagra and generic sildenafil?
Viagra is the branded version containing sildenafil citrate, while generic sildenafil contains the same active ingredient but is typically more affordable. Both are equally effective for treating erectile dysfunction, and Cured Pharmacy offers both options so you can choose based on your preference and budget.
Tarun Kumar, Prescribing Pharmacist

Medically reviewed by

Tarun Kumar, Prescribing Pharmacist (GPhC 2233073)

Reviewed on: June 03, 2026

Last reviewed: 13 August 2026

Last updated on 13 August 2026.

Review History

Our experts continually monitor new findings in health and medicine, and we update our articles when new information becomes available.

Why this page was updated on 13 August 2026

Content checked and updated as part of our periodic review, to ensure accuracy and currentness.

Current version (13 August 2026)

Edited by: The Editorial Team

Medically reviewed by:

Tarun Kumar, GPhC No. 2233073, Prescribing Pharmacist


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