Sterile Injectable & Fill-Finish Contract Manufacturing
Liquid and freeze-dried vials, ampoules, prefilled syringes and infusions made under your brand by sterile manufacturing sites in India.
Sterility cannot be tested into a product
A sterility test checks only a few units from each batch, so it cannot prove that every vial is sterile. Sterile products depend on how they are made: validated sterilisation, clean rooms, aseptic technique, and process simulations (media fills) that show the filling line does not contaminate the product. Choosing a sterile manufacturer is mostly about judging those systems.
Products that can withstand heat are sterilised in their final container. Many others, including most biologics, cannot, so they are sterile-filtered and filled aseptically, which carries more risk and needs tighter control. The revised EU GMP Annex 1, in force since August 2023, requires every site making sterile medicines for the EU market to have a documented contamination control strategy.
India has a large sterile manufacturing base, including many sites inspected by the US FDA and European authorities, but capability varies widely from plant to plant. We shortlist sites that already make your type of product, in your container, for your markets.
Tell us this to get a quote
- Molecule(s) and strength
- Container: vial, ampoule, prefilled syringe, cartridge or infusion bag
- Liquid, freeze-dried (lyophilised) or sterile powder
- Fill volume
- Target market(s)
- Annual volume and first-order quantity
- Special handling: cytotoxic, hormone, beta-lactam or cold chain
What to check in a sterile manufacturer
Inspection history
Which regulators have inspected the sterile line in recent years, and with what outcome. US FDA warning letters and EU GMP certificates (in EudraGMDP) are public; ask the site for its recent inspection reports.
Media fills
The results of recent aseptic process simulations for the actual line and container size, and how any failures were investigated.
Contamination control strategy
For EU supply, the site's documented strategy under Annex 1: clean-room classification, environmental monitoring, water and utilities, and personnel controls.
Segregation and containment
Penicillins, cephalosporins, carbapenems and other beta-lactams need dedicated, segregated facilities. Cytotoxic and some hormone products need containment or dedicated lines.
Inspection and container integrity
100% visual inspection for particles, container closure integrity testing, and the source and type of glass, stoppers and seals.
Stability and cold chain
Stability data for your climatic zone in the final container, and a plan for refrigerated products from the plant to your warehouse.
Which sterile format fits the product?
| Format | What it is | Typical examples | Watch for |
|---|---|---|---|
| Liquid vial or ampoule | Ready-made solution | Ondansetron, dexamethasone, heparin | Particles, glass delamination, light protection |
| Freeze-dried (lyophilised) vial | Dried in the vial, dissolved before use | Pantoprazole, many oncology products | Cycle validation, moisture, reconstitution time |
| Sterile powder fill | Sterile powder filled into vials | Ceftriaxone, meropenem, piperacillin-tazobactam | Dedicated beta-lactam facilities, powder sterility |
| Prefilled syringe or cartridge | Ready-to-use single dose | Enoxaparin, insulin cartridges | Syringe components, silicone, needle protection |
| Large-volume infusion | Bags or bottles for intravenous drip | Sodium chloride, dextrose, paracetamol infusion | Container leachables, terminal sterilisation |
The same molecule can be supplied in more than one format. The right choice depends on stability, how it is used in hospital and what your market already accepts.
How it works with PharmaTradz
You send the product, form, market and volume.
Two or three plants that already make that form, with their approvals and country of manufacture. Names under a confidential disclosure agreement when the requirement is firm.
Samples of an existing product, or technology transfer, development and stability batches for a new one.
Your brand, artwork and pack, and the dossier or product file your market needs.
Production and release with a batch-wise Certificate of Analysis, sterility and endotoxin results. Cold-chain shipping where needed.
Scheduled batches with the same site, materials and documents.
Problems we see most often
Particles found after delivery
Visible particles found by a hospital or regulator lead to complaints and recalls. Ask how the site inspects every unit and how it trends defects.
Supply stops after a sterility failure
A failed media fill or sterility deviation can stop a line for weeks. Ask about backup lines and how much stock to hold.
Cold-chain excursions
Refrigerated injectables exposed to heat in transit may have to be destroyed. Agree temperature monitoring and responsibilities before shipping.
Have a sterile product in mind?
Send the molecule, format, market and annual volume. We will tell you which sterile sites fit and what inspections they hold.
Send your requirement Talk to our teamOther contract manufacturing
For refrigerated products see our cold-chain logistics service. Also: lyophilisation, prefilled syringes, ophthalmic products and small batches. Building your own brand across several products? See white label and third-party manufacturing, or the CDMO and contract manufacturing guide hub.
