TempoLife › Features › Pharmacies and out-of-hours cover › falsified-medicines
The barcode and the seal
What the pharmacist scans, why every prescription pack has a tamper seal, what you can check yourself, and what to do if a pack looks wrong.
| In short | What it means |
|---|---|
| The rules | Directive 2011/62/EU and Delegated Regulation (EU) 2016/161 |
| In force since | 9 February 2019 across the EU and EEA |
| Two features | A unique identifier in a 2D code, and an anti-tampering device |
| What it cannot protect | Anything bought outside the legal supply chain |
This describes how pharmacy systems work; it is not medical advice, not a diagnosis and not a directory. It carries no pharmacy names, addresses, telephone numbers, opening times or prices, because those go out of date faster than a page can be republished — confirm anything time-sensitive with the pharmacy itself. Nothing here is a reason to start, stop or change a medicine: that belongs to your prescriber, and the pharmacist at the counter is the fastest professional to ask in the meantime.
The problem it was built for
Falsified medicines — packs that misrepresent their identity, their history or their source — reached the legal European supply chain often enough that the EU legislated. Directive 2011/62/EU amended the medicines code to add safety features to packs, and Commission Delegated Regulation (EU) 2016/161 specified them in detail. The system became mandatory across the EU and EEA on 9 February 2019, which is why every prescription pack you have handled since then carries a square dot-matrix code and a seal over the flap. It is one of the largest verification systems in European retail, and almost none of the people it protects have noticed it exists.
The two features
The first is a unique identifier: a serial number, product code, batch and expiry encoded in a 2D data-matrix code printed on the carton. It is unique to that individual pack, not to the product — two boxes of the same medicine carry different numbers. The second is an anti-tampering device: a seal, a glued flap or an equivalent, whose purpose is to make it visible if the carton has been opened. Together they answer two different questions: is this pack the one the manufacturer says it is, and has anyone been inside it since.
What the scan actually does
When a manufacturer packs a medicine, the unique identifier is uploaded to a European repository system and routed to the national repository of each country it may be sold in. When the pharmacy dispenses the pack, it scans the code, the system checks that this identifier exists and is still active, and the pack is decommissioned — marked as supplied. That is what makes a duplicate detectable: a second pack presenting the same identifier raises an alert, because the first one has already been dispensed. Wholesalers verify at defined points along the way. The system is operated by a European organisation together with national medicines verification organisations in each country.
What you can check yourself
Four things, none of which require equipment. The seal or glued flap should be intact — a carton that opens without resistance, or shows glue residue and re-sticking, is a reason to ask. The batch number and expiry date printed on the outer carton should match those on the blister or bottle inside. The leaflet should be in the language you would expect for the country of purchase, printed to a proper standard, with correct spelling of the medicine and the manufacturer. And the tablets should look and smell as they always have — an unexpected change in colour, marking, size or odour on a repeat is worth a question, even though a legitimate substitution also changes all of those, which is precisely why you ask rather than guess.
If something looks wrong
Do not take it. Do not throw it away either, because the pack is the evidence. Take it back to the pharmacy that supplied it, with the receipt if you have one, and say what looked wrong. Pharmacies have a route into the national medicines agency for exactly this and the agency will want the pack, not a description. If it arrived by post from a seller you found online, the same applies with more urgency, and the honest expectation is that a genuinely illegal seller will not help you — see buying medicine online for the check that prevents this in the first place.
The limit of the system
The safety features exist only inside the legal supply chain. A pack bought from an unregistered website was never in a national repository, so there is nothing to verify against and a printed code proves nothing — codes can be copied, which is why a duplicate raises an alert only when the legitimate pack passes through a real pharmacy. The system also does not extend to most non-prescription packs, which are outside its scope. What it does deliver is a strong guarantee about the specific thing most people worry about: the prescription pack handed over the counter in an EU or EEA pharmacy has been verified, individually, at the moment it was dispensed.
Sources: Directive 2011/62/EU — the falsified medicines directive · Commission Delegated Regulation (EU) 2016/161 — safety features on medicine packs · European Medicines Verification Organisation · European Medicines Agency · checked 2026-09-08
Frequently asked questions
What is the square barcode on my medicine box?
A 2D data-matrix code carrying a unique identifier for that individual pack — serial number, product code, batch and expiry. The pharmacy scans it, the national repository confirms it is genuine and still active, and the pack is marked as dispensed.
Why is there a seal on the flap?
It is the anti-tampering device required alongside the unique identifier. Its purpose is to make it visible if the carton has been opened between the factory and you. A carton that opens without resistance is a reason to ask at the pharmacy.
When did this start?
The safety features became mandatory across the EU and EEA on 9 February 2019, under Directive 2011/62/EU and Commission Delegated Regulation (EU) 2016/161. Packs manufactured before that date could still be sold through their shelf life.
What should I do if I think a pack is fake?
Do not take it and do not throw it away — the pack is the evidence. Take it back to the pharmacy that supplied it, with the receipt if you have one. They have a route into the national medicines agency, which will want the physical pack.
The other rules
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The search order that works, why the map is wrong more often than the register, how to read an opening_hours string, and what to do when nothing is open.
Nights, weekends and public holidays
Who decides that a pharmacy stays open, how a duty roster is published, which holidays close everything, and how to plan a repeat prescription around a long weekend.
What a pharmacist can do without a doctor
The three legal shelves, what a pharmacist is actually trained to catch, the questions they will ask and why, and the point at which the answer is a doctor rather than a product.
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Which situations are urgent rather than inconvenient, how a repeat is renewed in each country, what a pharmacy can do at its own discretion, and how to stop it happening again.
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What a national prescription store is, how you identify yourself, how to collect for someone else, what you can see yourself, and where the system stops at the border.
Using a prescription in another country
The EU rules that make a prescription portable, the elements it must carry, the medicines that need a travel certificate, and what a European Health Insurance Card does and does not pay for.
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