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Chemist Prices

Megalis: UK Status, Risks & the Licensed Equivalent

Written by Suks Minhas, MBBS, MD, FRCS(Urol) · Last updated

Megalis is not licensed as a medicine in the UK as a medicine in the UK. It can still show up in some listings, but the MHRA has not assessed its safety or effectiveness.

Speak with a UK-registered prescriber before using any unlicensed product, and be cautious of sellers making strong claims about it. 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 tadalafil. The MHRA has not assessed what these products actually contain.

UK-licensed equivalent: Tadalafil

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.

Tadalafil price estimates, the UK-licensed equivalent

Estimate, not a quote

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

  • 2.5 mg Not UK-licensed (MHRA)

    £0.09 per tablet or capsule

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    Price estimate

    Where to buy

  • 2.5mg Not UK-licensed (MHRA)

    £25.84 per tablet or capsule

    N/A

    Price estimate

    Where to buy

  • 5 mg Not UK-licensed (MHRA)

    £0.08 per tablet or capsule

    N/A

    Price estimate

    Where to buy

  • 5mg Not UK-licensed (MHRA)

    £3.87 per tablet or capsule

    N/A

    Price estimate

    Where to buy

  • 10 mg Not UK-licensed (MHRA)

    £0.12 per tablet or capsule

    N/A

    Price estimate

    Where to buy

  • 10mg Not UK-licensed (MHRA)

    £2.35 per tablet or capsule

    N/A

    Price estimate

    Where to buy

  • 20 mg Not UK-licensed (MHRA)

    £0.11 per tablet or capsule

    N/A

    Price estimate

    Where to buy

  • 20mg Not UK-licensed (MHRA)

    £2.88 per tablet or capsule

    N/A

    Price estimate

    Where to buy

  • 20 mg/5 mL Not UK-licensed (MHRA)

    £9.90 per mL

    N/A

    Price estimate

    Where to buy
£0.09 2.5 mg £25.84 2.5mg £0.08 5 mg £3.87 5mg £0.12 10 mg £2.35 10mg £0.11 20 mg £2.88 20mg
Estimated price per tablet or capsule by strength
All forms and prices
Price estimates by strength
Forms Price per unit
2.5 mg £0.09 / tablet or capsule
2.5mg £25.84 / tablet or capsule
5 mg £0.08 / tablet or capsule
5mg £3.87 / tablet or capsule
10 mg £0.12 / tablet or capsule
10mg £2.35 / tablet or capsule
20 mg £0.11 / tablet or capsule
20mg £2.88 / tablet or capsule
20 mg/5 mL £9.90 / mL

as of Oct 2, 2026 · Pricing methodology

Listed prices are only an estimate, compiled from the Drug Tariff and other public pricing references, not a price any one pharmacy has promised. Actual prices vary by pharmacy, pack and location, so treat the numbers as a starting point, not a promise. A price well below the listed range should be treated as a red flag for a counterfeit or unlicensed seller.

Pharmacies by area for Tadalafil (UK-licensed equivalent)

Pharmacies near you

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

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Cities with the most pharmacies

About Megalis

Megalis is not a licensed medicine in the United Kingdom and cannot legally be sold there as a medicine. Tadalafil is identified as the same-active-ingredient licensed comparison.

Megalis has no listed form or strength, and its contents have not been independently verified. A doctor or pharmacist can discuss licensed tadalafil and its suitability for the intended use.

Claimed strengths are manufacturer claims; no strength or dosage form is listed for Megalis. There is therefore no stated strength to compare with the licensed tadalafil equivalent. The product details do not establish its contents, and this description does not provide a dosing schedule or instructions for use.

What Megalis is used for

The marketing material does not specify a treatment claim for Megalis, so its intended use cannot be confirmed from its listed product details. Tadalafil, the identified same-active-ingredient comparison, belongs to a class commonly used to help with erectile difficulties.

That general use should not be treated as evidence that Megalis has an established indication, verified contents or demonstrated effectiveness. A doctor or pharmacist can explain the uses of licensed tadalafil and discuss whether an authorised product is appropriate.

How Megalis works

Tadalafil belongs to the phosphodiesterase inhibitor class. It slows the breakdown of a chemical messenger involved in relaxing smooth muscle and widening blood vessels.

In erectile tissue, this can support increased blood flow during sexual stimulation; it does not itself create sexual desire. These are general properties of tadalafil's drug class, not evidence that Megalis contains a verified amount of the ingredient or produces the same effects as an authorised medicine.

Key warnings

  • Megalis lacks licensing as a medicine in the United Kingdom and independent verification of its contents.
  • Tadalafil-class medicines can cause headache, flushing, indigestion and dizziness.
  • Blood pressure can fall, particularly with interacting medicines.
  • An erection that is prolonged or painful requires urgent medical attention.
  • Sudden loss of vision or hearing requires urgent medical attention.
  • Heart conditions may affect whether this class of medicine is suitable.

Main interactions

  • Nitrates used for angina can cause a dangerous fall in blood pressure when combined with tadalafil.
  • Nitrite-containing recreational substances, sometimes called poppers, can cause a dangerous fall in blood pressure.
  • Riociguat can cause an unsafe fall in blood pressure when combined with this class.
  • Alpha blockers and other blood pressure medicines can increase the risk of dizziness or low blood pressure.
  • Medicines that affect liver enzymes, including some antifungals and antibiotics, can alter tadalafil levels.
  • Other medicines for erectile difficulties may increase adverse effects when combined.
  • Alcohol can increase dizziness and the risk of low blood pressure.

Missed dose

There is no verified dosing schedule listed for Megalis, so a product-specific missed-dose instruction cannot be established. For licensed tadalafil, missed-dose advice depends on the prescribed regimen and formulation. A doctor or pharmacist can clarify the relevant instructions; compensating with an extra dose can increase adverse effects.

Pregnancy and breastfeeding

The marketing material does not specify pregnancy or breastfeeding data for Megalis. Any consideration of tadalafil during pregnancy or breastfeeding requires discussion with a doctor or pharmacist, taking account of the intended treatment and available safety information.

Storage

No storage conditions or dosage form are listed for Megalis. General medicine storage practice is to keep products in their original packaging, away from excess heat and moisture, and out of the sight and reach of children.

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