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Pharmaceutical fillers, diluents and binders

Build formulations your way: Rely on Roquette’s fillers, diluents and binders to help you unlock a wide variety of solid dosage forms and processing methods – from tablets and capsules to direct compression and wet granulation.

Fillers for direct compression: Enhance your process

Direct compression is fast becoming the method of choice for drug manufacturers striving for optimal process efficiencies – but true success depends on finding the right ingredients.

At Roquette, we offer an extensive range of products suitable for directly compressed formulations, offering good flowability, excellent compressibility and a specific particle size distribution to ensure uniform mixing. Our starches or starch compounds make swallowable and dispersible delivery forms possible.

Solutions for direct compression


    A high-performance, coprocessed mannitol-starch compound offering fast disintegration and API release in orodispersible tablets.

  • StarLac®

    Our leading lactose-starch compound is a co-processed excipient with a host of unique tableting properties.


    A multifunctional starch excipient, designed to offer maximum flexibility for the formulation of capsules and tablets.


    Our partially depolymerized crystalline cellulose powder exhibits excellent porosity, compressability and sensory properties, ideal for producing tablets, capsules, granules and pellets.

Unlock a world of patient-friendly formats


    Two of our wide range of mannitol grades, specially adapted for swallowable / chewable / oral dispersible or effervescent tablets. 

  • SweetPearl® P DC

    A directly compressible maltitol excipient for great-tasting chewable tablets, produced faster.


    Enhanced organolepic properties make our sorbitol solution ideal for strongly-flavored suckable tablets.


    Cooling, refreshing and versatile, this xylitol excipient unlocks fresh oral dosage forms.

Diluents: Increase the volume, keep the potency

Diluents are inert powders which act as fillers or diluting agents in the formulation of tablets, capsules and powder sachets. Roquette offers a range of both water-soluble and water-insoluble diluents, as well as solutions with a disintegration function.

Insoluable diluents

Our range of starches or partially pregelatinized starches, including sorbitol, mannitol and maltitol, are prized for their physicochemical stability and superior organoleptic properties.

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Soluble diluents

Choose from our extensive range of maltodextrins, dried glucose syrups, dextrose monohydrate and dextrose anhydrous excipients.

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Binders for wet granulation

A tried and tested traditional manufacturing process, wet granulation comes into its own in applications with a high concentration of active ingredients.

Roquette has specifically developed pharmaceutical binders with different degrees of water solubility and dispersibility to suit every dosage form and formulation.


A cold water soluble starch, primed for use with high shear equipment.

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A water-soluble maltodextrin binder, ideal for the preparation of granulation solutions or dry blends.

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Discover more about our excipients and active ingredients


Discover our solutions

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    All-round benefits for patients, consumers and brands. Learn more about our film coating technology for hard capsules and tablets, designed for ultimate protection and performance.

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    Direct compression

    Tablet formulation made simple. Discover our solutions for direct compression without compromise. 

  • Close up of hands pouring a bright pink pharmaceutical syrup onto a spoon.

    Solubility and stability improvement

    Unlock a whole new level of quality with our range of solubilization and stability enhancers, ideal for virtually any dosage form, from solid tablets to liquid suspensions.

  • Close up of a woman feeding a spoonful of medicine to a young girl.


    Get to know KLEPTOSE®, our leading range of taste-masking agents, strategically adapted to address any process or formulation constraint.

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    Liquid solutions

    From syrups and solutions to ampoules and dispersions: Discover our extensive range of plant-based excipients for liquid dosage forms. 

Ready to start your journey?

Your formulations. Our solutions. Your success. Get in touch with our experts to discuss your formulation goals and understand how we can make them a reality.
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