ORS sachet contract manufacturing in India — what brands need to know

Oral rehydration salts (ORS) sachets are among the most consistently demanded products across South Asia, the Middle East, and emerging markets. If you're a brand, distributor, or pharmacy chain looking to source ORS sachets from an Indian contract manufacturer, this guide covers the practical considerations — from formulation to regulatory compliance and export readiness.

ORS formulation — WHO-guided or proprietary?

The most widely recognised ORS formulation follows the WHO-UNICEF reduced-osmolarity guideline: sodium chloride, potassium chloride, trisodium citrate, and glucose at defined concentrations, producing a 245 mOsm/L solution when dissolved in one litre of water. This is the benchmark formulation used by healthcare systems and NGO supply chains globally.

In practice, most branded ORS sachets sold through pharmacy and health channels incorporate the WHO-guided salt composition but add flavouring — lemon, orange, mango — to improve palatability, particularly for paediatric use. Proprietary blends can also be developed that go beyond the standard ORS composition to include zinc, Vitamin C, or additional electrolytes for specific use cases such as sports recovery or clinical rehydration.

If you have your own formulation, a contract manufacturer should replicate it to specification. If you need formulation development support, look for a manufacturer with in-house formulation capability and the ability to validate outcomes through their own QC lab.

Fill weights and sachet formats for ORS

ORS sachets are typically offered at the following fill weights:

• 4.2 g or 5 g — paediatric single-dose sachets (dissolve in 200 mL water)
• 10.5 g — adult single-dose sachets (dissolve in 500 mL water)
• 21 g — adult double-dose sachets (dissolve in 1 litre of water)
• 200 g or 840 g bulk pouches — institutional channels: hospitals, clinics, NGO programmes

Your contract manufacturer should be capable of filling across this range from the same base blend. Confirm that the filling equipment supports your target sachet format and that sealing integrity is verified by in-process sampling — poor seals are a primary cause of moisture ingress and degraded product.

Regulatory framework — FSSAI vs Drug Licence

This question catches many brands off guard. ORS products in India are regulated differently depending on how they're positioned and labelled.

Products marketed as food supplements or nutraceuticals — and labelled accordingly without specific therapeutic or disease-treatment claims — fall under FSSAI licensing and the Food Safety and Standards Act, 2006. The manufacturer needs a valid FSSAI manufacturing licence for your product category.

Products marketed as medicines or drug products — particularly those making direct therapeutic claims (e.g., "treatment of dehydration in cholera") or listed as Schedule items — require a Drug Manufacturing Licence issued under the Drugs and Cosmetics Act. These licences are granted at state level by CDSCO-affiliated authorities and involve different compliance requirements.

Most commercially-sold ORS sachets in the FMCG and health channel in India operate under FSSAI licences. If you plan to position your product as a pharmaceutical product or seek pharmacy-only listings, confirm the regulatory category with your legal and compliance counsel before placing any manufacturing order.

Documentation for export markets

ORS sachets exported to Gulf markets, the UK, Australia, or other regulated destinations require detailed batch documentation. Import clearance typically requires:

• Certificate of Analysis from the manufacturer's own or NABL-accredited laboratory
• Full batch manufacturing records
• Stability data and shelf-life declaration, especially for temperature-sensitive corridors
• Labelling compliant with the destination country's food or pharmaceutical labelling regulations

Choose a manufacturer already exporting to markets similar to yours. The documentation processes are established, the common clearance pitfalls are known, and you're less likely to encounter preventable delays at customs.

Working with Sonfus Pharma

Sonfus Pharma manufactures ORS and electrolyte sachets from our FSSAI-licensed facility in Silvassa (Licence No. 13124999000001). We produce in the standard fill weight range including 10.5 g single-serve sachets, 21 g sachets, and 840 g bulk pouch formats, and provide full batch documentation and CoA with every order.

We are actively exporting to Gulf markets and can support labelling, CoA formatting, and export documentation for UAE, Saudi Arabia, Oman, Qatar, and other international destinations. We work from your supplied formulation or develop one with you — your formulation IP stays confidential under NDA. Trial batches are available before committing to commercial volumes.