A small biotech we work with had a launch window of three months and a finished API sitting in bulk drums. They had no blister line, no wallet machine, no validated cleanroom. What they needed was a co-packer who could take the bulk product and turn it into FMD-serialized retail packs ready for the EU market. That is the work co-packing actually does.
So what is co-packing?
Co-packing (sometimes written co-packaging) is the outsourced assembly of a finished pharmaceutical product into its market-ready packaging. Filling, blistering, cartoning, labeling, kitting, FMD serialization. All handled by a third party that runs a GMP-licensed line and takes regulatory responsibility for the work it does.
It sits in the middle of the supply chain: after the API has been formulated and the primary packaging is filled, before the boxes leave the warehouse. At Ecobliss it is the day-to-day work of our GMP-certified secondary contract packing line, from clinical Phase I batches up to commercial volumes.
Where co-packing ends and co-manufacturing begins
Co-manufacturing is the broader job. A co-manufacturer can take a formula and produce the drug from raw API up to the finished pack. Co-packing is narrower. The drug already exists, and the question is how to get it into wallets, cartons, kits or device trays that meet GMP, FMD, and the labeling requirements of the destination market.
The distinction matters once you start scoping a contract. Cost, lead time, batch records, change-control responsibilities. They are different conversations.
Why pharma teams outsource the packaging step
- No need to build a blister line, validate a cleanroom, or hire a packaging operations team. Capex stays where it should.
- Volume flexibility. A launch peak, a new geography, a pilot with twelve units. Co-packers carry the capacity so you do not have to plan for every scenario.
- Regulatory layer is already there. GMP, FMD, FSC, audit history. You inherit the certifications instead of building them.
- Access to packaging formats your in-house team would otherwise have to source. Things like cold seal blister packaging or child-resistant Locked4Kids wallets.
What ends up on a typical co-packing line
For us it is mostly: blister packs, multi-panel wallets, kit assemblies, child-resistant secondary, and clinical trial supply. Same lines run titration packs, medical-device trays, and serialized commercial cartons. Whatever the format, FMD serialization and aggregation are integrated, not bolted on after the fact.
How to pick a co-packer without regretting it
A few things worth pressure-testing before you commit:
- Can they actually scale with you? A partner who runs Phase II clinical batches but cannot move into commercial is a problem you discover too late.
- Audit history. GMP, FMD, FSC. Ask for inspection records, not just certificates on a wall.
- Technology fit. Cold seal versus heat seal, manual versus fully automated lines, what they can do for child-resistance and high-barrier needs.
- Their reference list. Have they worked in your therapeutic area, your geographies, your dosage forms.
For context, we have been doing this since 1996. Lundbeck, Sanofi, Merck KGaA, Novartis, Janssen and Organon all sit on the customer side. Forty people, one site in Echt, focus on niche and complex products rather than the highest-volume commodity work.
Thinking about outsourcing your packaging?
Whether it is one clinical batch or a multi-market launch, drop us a brief. We can usually tell within a week if it is a fit. Send us your project or request a packaging sample.
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