Oral solid dose MES. The material balance kept as the batch runs.

Oral solid dose manufacturing turns weighed materials into tablets or capsules through a sequence of transformations. At every stage, the site must know what entered, what happened, what was measured, what moved forward and where the remainder went.

Seal keeps dispensing, processing, in-process testing, packaging, QC and release in one batch genealogy, together with the material, equipment and cleaning state each step depended on. The reconciliation is computed from every movement and transformation recorded against the batch when it occurs.

1Material balance is the operating truth.

A batch may begin with drums and bags, become dispensed components, wet or dry granules, milled material, a blend, cores, coated tablets, bulk product and packaged units. Paper records document those forms on separate pages. Inventory systems often see only the issue and the finished receipt.

Seal treats each intermediate state as a controlled batch object. Quantity, unit, status, location, container, process stage, samples and losses remain explicit.

The reconciliation is not a calculation typed at the end. It is the sum of recorded events:

Issued material = acceptable output + samples + documented loss + scrap + accountable returns

If the equation does not close within the approved tolerance, the batch cannot move through normal review. The missing quantity is investigated while the physical context still exists.

1.1Why teams choose Seal for oral solid dose

A material balance that does not close is usually found at the end of an OSD batch, because the batch is recorded on paper or in a document-style eBR and the inventory system sees only the issue and the finished receipt. Seal records each intermediate on one platform with the batch, the in-process tests and the quality events, and sums the reconciliation from what was recorded. A revised tolerance, IPC or hold time becomes a new master version for the batches that follow, so the product family can improve from its own batch history.

2Identity is established at receipt and verified at dispense.

APIs, excipients, capsules and packaging components arrive with different storage, sampling and testing requirements. Seal creates received lots and containers in quarantine, assigns eligible locations and generates sampling work from the approved material and supplier plan. Each laboratory sample stays linked to the containers it represents, and QC disposition changes a lot’s availability without anyone copying the decision into another system. Retest and expiry dates stay with the lot.

The dispensing order derives from the approved master record and batch size. The operator scans the material and container, and Seal checks identity, status, expiry or retest, allocation and whether the lot is permitted for the product. The balance reading can enter directly, so target, tolerance, tare, net weight, balance, operator and verifier are one event rather than a transcription. Partial containers keep their remaining quantity.

A wrong material or unacceptable weight stops the step before the component reaches the process; any permitted exception follows an approved path. Independent verification can be electronic and risk-based. When a supplier or lot issue appears later, genealogy traces forward through every dispensed quantity and batch that consumed it.

3The master record becomes the run.

The approved master manufacturing record defines the sequence, materials, equipment classes, instructions, parameters, ranges, hold times, samples, calculations, signatures and conditional paths.

Seal instantiates that version for the batch. Operators see the current instruction and capture the required evidence in context. The system checks what can be checked: correct equipment, material identity, parameter ranges, required sequence, elapsed time, yield tolerance and completion of prerequisites.

Granulation, drying, milling, blending, compression or encapsulation, coating and packaging each keep their own parameters and checks rather than being flattened into generic steps. Reusable operation templates reduce configuration work, while product-specific parameters remain under controlled approval.

4In-process controls belong to the operation.

Controls run at different stages and frequencies: moisture and blend uniformity before compression, weight, hardness and friability during it, dissolution and appearance later.¹ Seal creates the required checks from the process definition. Results can enter from a connected device, an at-line instrument, the QC laboratory or controlled manual observation. The batch step knows whether the result permits continuation, requires adjustment within an approved range, or triggers a hold and investigation.

Adjustments remain visible. If compression weight trends and the operator changes fill depth, the record connects the observation, approved adjustment, new parameter, affected time or unit range, and follow-up result. Reviewers see control, not a final average that hides the process response.

5Material and equipment carry their own eligibility.

Intermediates wait between steps: granules for milling, blend for compression, cores for coating, bulk for packaging. Seal starts each hold clock when the defined event occurs and carries the deadline with the container. Scheduling sees what must run next, and material past its normal hold cannot be issued without the approved assessment. A storage excursion identifies the containers and batches inside the affected interval.

A blender is not available merely because the schedule is empty. Its cleaning status, prior product, maintenance, calibration, qualification and line clearance decide whether it may be used, and Seal checks the selected equipment against the batch requirement. Cleaning execution records its agents, parameters, inspection and release.² Dirty and clean hold times stay live. Changeover rules can add controls based on the previous and next product. The asset state that permitted execution is kept with the batch, closing the gap between the equipment register and the batch record.

6Packaging continues the genealogy.

Packaging is part of the batch history, not an inventory transaction after manufacturing. Labels, cartons, leaflets and other printed components must be the correct ones for the batch.³ Each also has identity, version, quantity and reconciliation requirements.

Seal verifies component issue and line clearance, records code setup and checks, links inspection or vision results, and accounts for issued, used, rejected, destroyed and returned quantities. Finished units inherit the bulk batch and packaging-lot genealogy.

Batch production and control records must show that each significant step was accomplished.⁴ A connected genealogy makes that history retrievable from one place rather than distributed across records.

7Review follows exceptions and transformations.

QA can review completed sections while the batch proceeds. Material verification, parameters, IPCs, yields, hold times, cleaning, samples and deviations surface against the stage where they occurred.

At completion, the release record joins manufacturing with finished-product testing, open quality events, packaging reconciliation, stability commitments and required approvals. The reviewer moves through unresolved evidence rather than reading every normal entry as if each carried equal risk.

When disposition is approved, finished goods change status and the Certificate of Analysis renders from the same approved dataset.

8Start with one product family.

An effective implementation begins with a representative family rather than every SKU. Model shared materials, equipment classes, unit operations, tests and packaging patterns. Configure one master record and exercise normal execution plus the exceptions that define real operations: wrong material, out-of-tolerance weight, failed IPC, hold-time risk, yield discrepancy, equipment alarm, cleaning failure and packaging reconciliation difference.

The second product should inherit approved reusable components. The implementation scales when adding a strength or presentation is a controlled delta review—not another document-conversion project.