Herbal Tablet Manufacturing in India: What to Specify
Tablets involve more formulation decisions than capsules, and most of them affect the consumer experience directly. Binders, coating, hardness and disintegration all have to be specified. Get them wrong and the tablet crumbles, will not swallow, or does not break down.
Why Tablets Need More Formulation Work
This guide is for brand owners sourcing herbal, Ayurvedic or nutraceutical tablets in India.
A capsule holds a powder blend. A tablet has to be compressed into a solid that survives handling, swallows acceptably and then disintegrates. That requires binders, disintegrants, lubricants and often a coating, which means a tablet typically carries a higher proportion of excipients than a capsule of the same active dose.
For brand owners that has two consequences. The label composition will show more non-active ingredients, which some consumers notice. And the achievable active dose per tablet may be lower than expected, which affects serving size.
Specification Elements
Settle these in writing before a first batch.
| Element | What to Specify | Why |
|---|---|---|
| Active composition | Ingredients with quantities per tablet | The basis of everything else |
| Excipients | Full list with quantities | Must be declared; affects dose space |
| Tablet weight and size | Target with tolerance | Determines swallowability |
| Shape | Round, oval, caplet | Oval and caplet shapes often swallow more easily |
| Hardness | Target range | Too soft crumbles; too hard may not disintegrate |
| Disintegration | Target time, tested | Functional requirement, not optional |
| Coating | Type, or uncoated | Affects taste masking, appearance and cost |
| Colour | Target, with variation allowance | Herbal tablets vary naturally |
| Friability | Limit | Predicts handling and transit damage |
| Embossing or breakline | If required | Affects tooling and cost |
Hardness and disintegration are linked and must be specified together. Optimising one without the other is the most common tablet formulation failure.
Coating Decisions
Coating is a real cost and sometimes a necessity.
Taste Masking
Many herbal actives are bitter or astringent. Coating is often the only practical way to make them acceptable.
Appearance
Coating produces a uniform finish; uncoated herbal tablets show natural colour variation that some consumers read as inconsistency.
Moisture Protection
Coating provides some barrier benefit for hygroscopic actives, though pack choice matters more.
Cost and Time
Coating adds process cost and time. Decide whether taste and appearance justify it for your product and price point.
If the actives are strongly bitter, treat coating as a requirement rather than an option. Taste is the most common reason consumers stop taking a product.
The Experience Problems to Avoid
Four failures that drive complaints and lost reorders.
- Crumbling in the pack, usually a hardness or friability problem, visible on arrival and damaging to trust.
- Too large to swallow comfortably, which shows up as non-reordering rather than complaints.
- Not disintegrating, which consumers sometimes notice and report, and which undermines the product’s purpose.
- Bitter taste from an uncoated tablet, the most common reason a consumer abandons a course.
Testing Per Batch
The panel to agree.
- Identity of key inputs, particularly extracts.
- Marker assay for each standardised extract, method named.
- Average weight and weight variation.
- Hardness against the specified range.
- Friability against the specified limit.
- Disintegration time against the target.
- Microbial limits including relevant pathogens.
- Heavy metals against stated limits.
- Moisture content where relevant.
- Appearance against an approved physical sample.
Specification Checklist
Before committing to a first order.
- Confirm the achievable active proportion per tablet.
- Obtain the full composition including excipients with quantities.
- Specify weight, size and shape with swallowability in mind.
- Specify hardness and disintegration together.
- Decide coating based on taste and appearance requirements.
- Agree friability limits.
- Approve a physical sample and retain it as the reference.
- Agree the testing panel in writing with limits.
- Choose the pack with moisture sensitivity in mind.
- Commission stability data in the actual pack.
- Verify the manufacturer’s licence covers tablets in your category.
Need Tablets to a Written Specification?
Share your composition, target dose and volume and our team will confirm achievable formulation, coating options and documentation.
Frequently Asked Questions
Why do tablets carry more excipients than capsules?
Because the blend has to be compressed into a solid that survives handling, swallows acceptably and then disintegrates, which requires binders, disintegrants and lubricants. That reduces the space available for active material and shows up in the label composition.
What are the two most important linked specifications?
Hardness and disintegration. They are directly related, and optimising one without the other is the most common tablet formulation failure: too soft crumbles in the pack, too hard may not disintegrate properly.
Is coating necessary?
It depends on the actives. Many herbal ingredients are bitter or astringent, and coating is often the only practical way to make them acceptable. If the actives are strongly bitter, treat coating as a requirement rather than an option.
What tablet problems cause most lost reorders?
Bitter taste from an uncoated tablet, and a tablet too large to swallow comfortably. Neither usually generates a complaint; consumers simply stop reordering, which makes these failures easy to miss and expensive.
What should be tested per batch?
Identity and marker assay for extracts with methods named, average weight and variation, hardness, friability, disintegration time, microbial limits, heavy metals, moisture where relevant, and appearance against an approved physical sample.