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Chemist Prices

Sildamax: UK Status, Risks & the Licensed Equivalent

Written by Vaibhav Modgil, MBChB, MD, FRCS(Urol) · Last updated

Sildamax does not have MHRA approval for any use in the UK. It may still appear in some listings, but no MHRA review of its safety or effectiveness covers it.

Ask a doctor or pharmacist before considering it, and verify a seller's registration before buying. A seller who is vague about licensing status is itself worth asking about.

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

Treat any price here as an estimate, built from public UK pricing data, not a quote from any specific pharmacy. Real-world prices depend on the pharmacy you choose and your location, so treat the numbers as a starting point, not a promise. A price that seems oddly cheap next to this range should be treated as a red flag about who is actually selling it.

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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About Sildamax

Sildamax is not a licensed medicine in the United Kingdom and cannot legally be sold there as a medicine. It is marketed as a product containing sildenafil, but its regulatory status, quality and contents have not been independently verified. Information about the claimed use and pharmacology should not replace assessment by a doctor or pharmacist, particularly where cardiovascular treatment or other medicines are involved.

The product label does not list a claimed strength or a dosing schedule. Claimed strengths are manufacturer claims, but no strength is stated for Sildamax.

No dosing instruction can be established from the product information. A doctor or pharmacist can discuss the licensed sildenafil product and whether it is suitable.

What Sildamax is used for

Sildamax is marketed for erectile difficulties in adults. This is a marketing claim rather than an established medical indication for this product. Erectile difficulties can have physical, psychological or medicine-related causes, and may sometimes be associated with underlying cardiovascular or metabolic conditions.

Assessment by a doctor or pharmacist can help identify suitable treatment and check whether sildenafil is appropriate. The product's regulatory status and contents have not been independently verified.

How Sildamax works

Sildenafil belongs to a class of medicines that inhibit an enzyme called phosphodiesterase type five. This can increase the effect of naturally occurring chemical signals involved in relaxing smooth muscle and widening blood vessels in the penis during sexual stimulation.

The medicine does not normally produce an erection without sexual stimulation. The same blood-vessel effects can affect other parts of the body, which helps explain possible effects such as headache, flushing, dizziness or changes in blood pressure.

Key warnings

  • Sildamax is not a licensed medicine in the United Kingdom and cannot legally be sold there as a medicine.
  • The product's identity, contents, strength and quality have not been independently verified.
  • Sildenafil-class medicines can cause a fall in blood pressure, dizziness, headache, flushing and visual changes.
  • Seek urgent medical help for chest pain, sudden loss of vision or hearing, or an erection that is painful or does not go away.
  • Extra caution is needed with heart disease, low blood pressure, uncontrolled high blood pressure or previous stroke.
  • Sildenafil is not suitable for everyone, including people using nitrate medicines or riociguat.

Main interactions

  • Nitrate medicines can cause a dangerous fall in blood pressure when combined with sildenafil.
  • Riociguat can have an additive blood-pressure-lowering effect with sildenafil.
  • Alpha-blockers may increase the risk of dizziness or low blood pressure.
  • Other medicines that lower blood pressure may intensify this effect.
  • Some medicines that inhibit liver enzymes can increase sildenafil exposure and adverse effects.
  • Large amounts of alcohol may worsen dizziness and reduce erectile response.

Missed dose

Sildenafil-class treatment is generally used around planned sexual activity rather than as a regular daily medicine. If a planned dose is missed, the product should not be doubled or used more often to compensate. Advice depends on the prescribed product, the person's health and other medicines.

A doctor or pharmacist can provide individual guidance. Urgent advice is needed if excessive use is followed by severe dizziness, chest pain, visual changes or a prolonged erection.

Pregnancy and breastfeeding

Sildenafil is not generally used to treat erectile difficulties in pregnancy. The marketing material for Sildamax does not specify pregnancy or lactation data.

Anyone who is pregnant, planning pregnancy or breastfeeding should discuss the product with a doctor or pharmacist before use. This is particularly relevant because the product's contents and strength have not been independently verified.

Storage

No storage conditions are listed for Sildamax. Keep the product in its original packaging, dry and away from excessive heat, moisture and direct light, and keep it out of the reach of children. Follow any storage directions printed on the packaging to maintain quality.

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