Credo Life Science
Posted on 27th January 2022

Posted on 27th January 2022

Pharmaceutical pellets have become a cornerstone of modern oral drug delivery. These tiny, free-flowing spheres can carry an active ingredient, control its release and be filled into capsules or compressed into tablets. India, with its strong pharmaceutical manufacturing base, is a major source of pellets for domestic and export markets. If you are a formulation company looking for a pellets manufacturer in India, this guide explains what pellets are, how they are made and what to evaluate before choosing a partner.
Pellets are small, roughly spherical particles, typically between 0.5 and 1.5 mm in diameter, containing one or more active pharmaceutical ingredients (APIs) and excipients. They belong to the family of multiparticulate dosage forms, in which the dose is divided into many small units instead of being delivered in a single tablet or capsule mass.
Pellets are filled into hard capsules, compressed into multiple-unit tablets, packed into sachets for sprinkling or used in combination with other pellets in a single capsule.
Because pellets are small, they spread out along the gastrointestinal tract and empty from the stomach more evenly than single large units. This tends to reduce variability between patients and lowers the risk of high local concentrations of drug.
Pellets can be coated to give immediate, delayed, sustained or pulsatile release. Different coated pellets can even be blended in one capsule to create combination profiles.
Their spherical shape and narrow size distribution allow smooth flow, accurate capsule filling and uniform coating.
Acid-sensitive and moisture-sensitive drugs can be protected by suitable sub-coatings and functional coatings.
A wet mass of drug and excipients is extruded into cylindrical strands, which are then broken and rounded into spheres in a spheroniser. The pellets are dried and sieved. This method suits high drug-loading products.
A solution or suspension of drug and binder is sprayed onto inert starter cores, such as sugar spheres or microcrystalline cellulose spheres, in a fluid bed or coating pan. This approach gives uniform pellets with excellent control of drug content, and it is widely used for low-dose and potent drugs.
Powder layering, melt pelletisation and spray congealing are used when the product or equipment demands it.
Once drug-loaded pellets are ready, polymers are applied in fluid bed equipment to provide the required protection or release. Examples include enteric coatings and extended-release membranes.
Key quality attributes to evaluate in pharmaceutical pellets include:
Ask about the technologies available, such as fluid bed processors with bottom-spray (Wurster) coating, extrusion-spheronisation and the range of batch sizes. Experience with enteric, sustained-release and potent drug pellets signals depth.
A dependable supplier should operate under recognised good manufacturing practices and provide documents such as certificates of analysis, specifications, stability data and change control information. Ask whether the facility has been audited by customers or regulators.
Check how the manufacturer transfers a product from development to commercial scale and how it ensures batch-to-batch reproducibility.
Support with documentation for regulatory filings and responsiveness to queries save time during product development and approval.
Lead times, capacity planning, raw material sourcing and packaging all affect your supply chain. Clear communication prevents surprises.
Pellets are sensitive to moisture and, in some cases, heat. Suitable packaging, such as double polythene liners within sealed containers, and recommended storage conditions protect quality until use. Indian suppliers serving export markets should also be familiar with stability requirements for hot and humid climates.
Credo Life Sciences focuses on pharmaceutical pellets and granules for formulation companies that need consistent quality, dependable supply and clear technical communication. We understand that a multiparticulate ingredient is only as good as its reproducibility from batch to batch, so our approach centres on controlled processes, thorough documentation and responsive support for your development and commercial needs. We work as a long-term partner to our customers, not just a vendor.
Pellets give formulators the freedom to design reliable, patient-friendly oral dosage forms, but the benefits depend on the quality of the pellets themselves. By evaluating technical capability, quality systems and support, you can select a pellets manufacturer in India who helps your products succeed. To discuss your requirements, get in touch with our team.
Partner with Credo Life Sciences for your pellet and granule requirements. Contact our team to discuss specifications and quotations.