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Chemist Prices

Viagra Black: UK Status, Risks & the Licensed Equivalent

Written by Hussain M. Alnajjar, MBChB, PhD, FRCS(Urol) · Last updated

Viagra Black is not a UK-licensed product in the United Kingdom. Some sellers may still list it, but its safety and effectiveness have not been assessed by the MHRA.

Talk to a doctor or pharmacist before using any unlicensed product, and verify a seller's registration before buying. A missing or unclear UK licensing status is a reasonable thing to question.

Not UK-licensed. This medicine is not supplied through UK-registered pharmacies.

Sellers list the active ingredient as sildenafil. The MHRA has not assessed what these products actually contain.

UK-licensed equivalent: Sildenafil

The MHRA warns that medicines sold outside registered pharmacies can be counterfeit, contaminated, or contain the wrong amount of active ingredient. Buy prescription-only medicines from a pharmacy registered in the UK.

Sildenafil price estimates, the UK-licensed equivalent

Estimate, not a quote

Prices below are for Sildenafil, the UK-licensed medicine with the same active ingredient. This product itself is not UK-licensed and cannot be supplied through UK-registered pharmacies.

  • 10mg Not UK-licensed (MHRA)

    £227.25 per pack dispensed

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    Price estimate

    Where to buy

  • 20mg Not UK-licensed (MHRA)

    £347.51 per tablet or capsule

    N/A

    Price estimate

    Where to buy

  • 25mg Not UK-licensed (MHRA)

    £2.92 per tablet or capsule

    N/A

    Price estimate

    Where to buy

  • 50mg Not UK-licensed (MHRA)

    £1.27 per tablet or capsule

    N/A

    Price estimate

    Where to buy

  • 100mg Not UK-licensed (MHRA)

    £1.38 per tablet or capsule

    N/A

    Price estimate

    Where to buy
£227.25 10mg £347.51 20mg £2.92 25mg £1.27 50mg £1.38 100mg
Estimated price per tablet or capsule by strength
All forms and prices
Price estimates by strength
Forms Price per unit
10mg £227.25 / pack dispensed
20mg £347.51 / tablet or capsule
25mg £2.92 / tablet or capsule
50mg £1.27 / tablet or capsule
100mg £1.38 / tablet or capsule

as of Oct 2, 2026 · Pricing methodology

Figures shown are an estimate, based on public UK pricing references such as the NHS Drug Tariff, not a quote you can hold a pharmacy to. What you pay can differ by pharmacy and where you are, so confirm the exact price with the pharmacy before you buy. A price that looks far too low compared with the range shown here is a red flag for a counterfeit or unlicensed seller.

Pharmacies by area for Sildenafil (UK-licensed equivalent)

Pharmacies near you

Use your location to open the pharmacies closest to you and ask them about Sildenafil, the UK-licensed medicine with the same active ingredient.

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Cities with the most pharmacies

About Viagra Black

Viagra Black is not a licensed medicine in the United Kingdom and cannot legally be sold there as a medicine. Its name should not be taken as evidence of its contents, strength or quality.

Sildenafil is a licensed medicine that readers can discuss with a doctor or pharmacist. Information about sildenafil does not independently verify the contents of Viagra Black.

Claimed strengths are manufacturer claims, but no claimed strength is listed for Viagra Black. No tablet strength or other dosage form is established for this product.

A comparison with the maximum strength of licensed sildenafil cannot be made. The product name is not a reliable guide to its contents or strength.

What Viagra Black is used for

Viagra Black is marketed for erection problems, but this is a marketing claim rather than an established medical use for this product. Its advertised identity should not be treated as proof that it contains sildenafil or that it works like a licensed sildenafil medicine.

Sildenafil is used to help with erection difficulties, but that does not establish the effectiveness of Viagra Black. A doctor or pharmacist can discuss licensed treatment options and their suitability.

How Viagra Black works

Sildenafil belongs to a group of medicines called PDE inhibitors. It reduces the action of an enzyme that normally limits a chemical signal involved in relaxing blood vessels. During sexual stimulation, this can help blood flow into the penis and support an erection.

It does not create sexual desire, and sexual stimulation is still needed. This explains sildenafil's general action, not verified effects or contents of Viagra Black.

Main interactions

  • Nitrates used for angina can cause a dangerous blood pressure drop with sildenafil.
  • Recreational nitrites, often called poppers, can dangerously lower blood pressure with sildenafil.
  • Riociguat can cause a dangerous blood pressure drop when combined with sildenafil.
  • Alpha-blockers and other blood pressure medicines can increase dizziness or fainting.
  • Some antifungal medicines, antibiotics and HIV medicines can increase sildenafil levels.
  • Other medicines for erection problems may increase unwanted effects.

Key warnings

  • Viagra Black lacks licensing as a medicine in the United Kingdom, and its contents and quality lack independent verification.
  • Sildenafil can cause a dangerous fall in blood pressure when combined with nitrates.
  • Heart conditions or low blood pressure may make sildenafil unsuitable.
  • A prolonged or painful erection needs urgent medical help.
  • Sudden loss of vision or hearing needs urgent medical help.

Pregnancy and breastfeeding

The marketing material does not specify pregnancy or breastfeeding data for Viagra Black. Sildenafil for erection problems is not intended for use during pregnancy or breastfeeding. Sildenafil may have other specialist uses, so questions about exposure during pregnancy or breastfeeding should be discussed with a doctor or pharmacist.

Missed dose

Sildenafil used for erection problems is generally used when needed rather than on a regular schedule, so a missed dose does not usually apply. Guidance depends on the licensed product and why it is prescribed. Extra doses to make up for an omission can increase unwanted effects.

Storage

No storage conditions or dosage form are listed for Viagra Black. General medicine storage practice is to keep products in their original packaging, away from children, moisture, heat and direct sunlight, as directed on the label.

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First published October 2, 2026 · Last updated · Report an error on this page