Pharmaceutical Packaging: GS1 DataMatrix, Serialisation and Tamper-Evident Guide
B2B guide to GS1 DataMatrix codes, serialisation requirements, tamper-evident cartons and EU FMD compliance for pharmaceutical packaging.
Pharmaceutical packaging is subject to the strictest regulation of any packaging category. Errors cost lives, trigger costly recalls and expose manufacturers to criminal liability. Whether you are sourcing primary packaging (in direct contact with the drug) or secondary packaging (the outer carton), understanding the regulatory framework before you brief your packaging supplier is essential.
EU Falsified Medicines Directive (FMD) and GS1 DataMatrix
The EU FMD (Directive 2011/62/EU) requires that prescription medicines sold in the EU carry a unique identifier in GS1 DataMatrix format, along with tamper-evident features. The DataMatrix must encode four data elements:
- Product code: GTIN (Global Trade Item Number) — 14 digits
- Serial number: Up to 20 alphanumeric characters, unique per pack
- Batch/lot number: Up to 20 alphanumeric characters
- Expiry date: YYMMDD format
The DataMatrix symbol must be a minimum of 5×5mm at 10 cells/mm or larger to ensure scanner readability in automated dispensing systems. Grade the symbol at ISO/IEC 15415 minimum Grade C (1.5) at print.
Tamper-Evident Features
EU FMD and equivalent regulations globally require that cartons have a tamper-evident device. Common approaches used in pharmaceutical cartons:
| Feature | How It Works | Regulatory Acceptance |
|---|---|---|
| Tear strip | Perforated strip on carton end flap; visible once torn | EU FMD compliant |
| Glued end flaps | End flaps glued shut; damage visible on opening | EU FMD compliant with correct design |
| Destructible label | Label bridges box opening; tears on first open | Used for OTC; EU FMD requires integrated feature for Rx |
| Security varnish / ink | UV-fluorescent or colour-shifting print element | Anti-counterfeiting; not standalone FMD compliance |
Board Grades for Pharmaceutical Cartons
Pharmaceutical folding cartons use SBS board 270–350gsm. The board must meet USP or EP standards for non-migration of extractables and leachables if the carton is considered primary packaging. For secondary packaging (outer carton with inner blister or bottle), standard SBS 300gsm is acceptable. All pharmaceutical cartons require a high degree of dimensional precision — tolerance ±0.5mm is standard for automated cartoning line compatibility.
Variable Data Printing (VDP)
Serialisation requires printing a unique serial number on each carton. This is achieved either inline on the cartoning line using inkjet or laser, or offline with a dedicated serialisation printer. At BestPackFactory we produce pharma cartons with a pre-designated data matrix window area and supply blank cartons for customer-side serialisation, or work with clients whose serialisation is applied to a label placed on-pack.
RFQ Checklist
- Carton dimensions (L × W × H in mm) and assembled style
- Board grade (gsm and surface coating)
- DataMatrix window: position and size specification
- Tamper-evident feature required
- Destination regulatory market (EU FMD, US DSCSA, China NMPA)
- Print colours and any security print elements
- Annual volume and call-off schedule
- Automated line speed (cartons/minute) to confirm glue pattern spec
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