Sildalis: UK Status, Risks & the Licensed Equivalent
Sildalis does not have MHRA approval under UK medicines law. It may still appear in some listings, but its safety and effectiveness have not been assessed by the MHRA.
Consult a qualified clinician before deciding anything about it, and question sellers who make bold claims about it. A seller who is vague about licensing status is worth a direct question to the seller.
Not UK-licensed. This medicine is not supplied through UK-registered pharmacies.
Sellers list the active ingredient as tadalafil / sildenafil. 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.
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2.5 mg Not UK-licensed (MHRA) NHS SPS supply disruption listed
£0.09 per tablet or capsule
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2.5mg Not UK-licensed (MHRA) NHS SPS supply disruption listed
£25.84 per tablet or capsule
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Where to buy -
5 mg Not UK-licensed (MHRA) NHS SPS supply disruption listed
£0.08 per tablet or capsule
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Where to buy -
5mg Not UK-licensed (MHRA) NHS SPS supply disruption listed
£3.87 per tablet or capsule
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Where to buy -
10 mg Not UK-licensed (MHRA) NHS SPS supply disruption listed
£0.12 per tablet or capsule
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Where to buy -
10mg Not UK-licensed (MHRA) NHS SPS supply disruption listed
£2.35 per tablet or capsule
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Where to buy -
20 mg Not UK-licensed (MHRA) NHS SPS supply disruption listed
£0.11 per tablet or capsule
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Where to buy -
20mg Not UK-licensed (MHRA) NHS SPS supply disruption listed
£2.88 per tablet or capsule
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Where to buy -
20 mg/5 mL Not UK-licensed (MHRA) NHS SPS supply disruption listed
£9.90 per mL
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Where to buy
All forms and prices
| 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
Treat any price here as an estimate, assembled from public pricing references for the UK, not a quote from any specific pharmacy. What you pay can differ by pharmacy and where you are, so confirm the exact price with the pharmacy before you buy. A price well below the listed range is a red flag about who is actually selling it.
Pharmacies by area for Tadalafil (UK-licensed equivalent)
- North East · 884 pharmacies
- North West · 2538 pharmacies
- Yorkshire and The Humber · 1676 pharmacies
- East Midlands · 1307 pharmacies
- West Midlands · 1778 pharmacies
- East of England · 1860 pharmacies
- London · 3261 pharmacies
- South East · 2368 pharmacies
- South West · 1374 pharmacies
- Northern Ireland · 714 pharmacies
- Scotland · 1725 pharmacies
- Wales · 1050 pharmacies
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.
Cities with the most pharmacies
- London · 724 pharmacies
- Birmingham · 265 pharmacies
- Nottingham · 180 pharmacies
- Glasgow · 177 pharmacies
- Leeds · 173 pharmacies
- Sheffield · 162 pharmacies
- Bristol · 148 pharmacies
- City of London · 144 pharmacies
- Manchester · 134 pharmacies
- Edinburgh · 131 pharmacies
- Bolton · 124 pharmacies
- Belfast · 122 pharmacies
- Hampstead · 121 pharmacies
- Coventry · 115 pharmacies
- Cardiff · 112 pharmacies
About Sildalis
Sildalis is not a licensed medicine in the United Kingdom and cannot legally be sold there as a medicine. Its quality, contents and manufacturing standards may therefore differ from those of authorised treatments. Anyone considering treatment for erection problems should speak with a doctor or pharmacist and ask about suitable, regulated options, including tadalafil where clinically appropriate.
Claimed strengths are manufacturer claims, but no claimed tablet strength is listed for Sildalis. The label does not provide a dose or dosing schedule.
This information is not a dosing instruction. A pharmacist or doctor can advise about regulated treatment and any suitable strength of tadalafil.
How Sildalis works
Tadalafil belongs to a group of medicines called phosphodiesterase type five inhibitors. These medicines help relax blood vessels in the penis when sexual stimulation occurs. This can improve blood flow and help an erection develop.
They do not normally create sexual desire and do not work without sexual stimulation. The effect depends on the medicine being genuine and containing the stated ingredient. Unlicensed products may not have reliable contents, so their action and safety cannot be assumed.
What Sildalis is used for
Sildalis is marketed for erection problems in adults. This is a marketing claim, not an established indication for a licensed United Kingdom medicine. Erection problems can have physical or emotional causes and may sometimes be linked with other health conditions.
A doctor or pharmacist can discuss symptoms, possible causes and suitable treatment. Buying a product online does not confirm that it contains the stated ingredient or strength.
Key warnings
- Sildalis is not a licensed medicine in the United Kingdom and cannot legally be sold there as a medicine.
- The product has not been independently verified for its contents, quality or strength.
- Tadalafil medicines can cause a prolonged or painful erection requiring urgent medical help.
- Seek urgent help for chest pain, fainting or sudden changes in vision or hearing.
- Tadalafil may not be suitable for people with certain heart or blood pressure problems.
- Do not use a product advertised as tadalafil if its contents cannot be confirmed by a registered United Kingdom pharmacy.
Main interactions
- Nitrate medicines used for chest pain can cause a dangerous fall in blood pressure with tadalafil.
- Riociguat can interact with tadalafil and may cause a dangerous fall in blood pressure.
- Some medicines for high blood pressure can add to tadalafil's blood pressure lowering effect.
- Alpha-blockers can increase the risk of dizziness or low blood pressure with tadalafil.
- Certain medicines that affect liver enzymes can change tadalafil levels in the body.
- Large amounts of alcohol may increase dizziness and lower blood pressure.
Storage
No storage conditions are listed for Sildalis. Keep the product in its original packaging, dry and away from heat, moisture and direct light.
Keep it out of the sight and reach of children. Follow any storage directions on the label and do not use tablets that look damaged or altered.
Missed dose
A missed dose depends on the intended treatment plan. Tadalafil is used in different ways, so general advice may not suit every person. Do not take extra medicine to make up for a missed dose.
Check the product instructions or ask a pharmacist or doctor for advice. This guidance does not establish a dosing schedule for Sildalis, whose contents and instructions have not been independently verified.
Pregnancy and breastfeeding
Tadalafil is not intended for use during pregnancy. It is also not generally used to treat women. The marketing material for Sildalis does not specify pregnancy or breastfeeding data.
Anyone who is pregnant, planning a pregnancy or breastfeeding should discuss the product with a doctor or pharmacist before use. An unlicensed product may not have reliable information about its ingredients or possible effects.
Related medicines
- Tadalafil · UK-licensed equivalent
- Minoxidil
- Finasteride
- Avanafil
- Vardenafil
- Sildenafil
First published October 2, 2026 · Last updated · Report an error on this page