What we do

We stand for excellence and expertise. From product development and manufacturing to packaging, testing and final shipment of goods, we deliver everything from a single source, offering the perfect end-to-end solution for our customers. New products are accompanied and supported by our professional transfer team until they transition into safe routine operation. 

We are happy to meet specific customer requests. Furthermore, we work on continuous product improvement in close collaboration with the customer. 

With efficient, validated processes and a robust organisational structure, we always guarantee high-quality, reliable products.

Product development

We impress our customers with the development of customised, innovative products that set you apart from your competitors. As a CDMO (Contract Development and Manufacturing Organization), we develop novel, needs-based solutions and formulations, using conventional as well as new and modern technologies. Alongside formulation development, we also handle the development and validation of analytical methods, ICH (Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use) stability studies, dossier preparation and clinical batch manufacturing in a cGMP (Current Good Manufacturing Practice) environment.

Thanks to strong integration and technological alignment, we can guarantee our customers a seamless and secure transition from product development to industrial production.


Another core competence at our site is the flexible and efficient filling of hard gelatine capsules. We have the right process technology to produce every conceivable hard gelatine capsule formulation. Our high-performance capsule filling machines offer the best conditions for the highest pharmaceutical standards. The dosing systems are optimally configured for the product to be filled, whether it is powders, (mini) tablets, pellets, granules or various combinations in hard-shell capsules (Hydroxypropylmethylcellulose (HPMC) or gelatine). High-precision weighing modules, sensors and control systems ensure high product quality. Our experts from the development team are happy to support you in the process development.

Our quality standards

The employees of the analytical laboratory and the quality assurance department contribute to meeting the strictest quality standards and earning the trust of our customers. In addition to GMP certification for human and veterinary medicines, we hold a license issued by the Spanish health authority for processing of anaesthetics as well as production and packaging of clinical samples.


Tablets are the most common and important dosage form in all pharmaceutical markets. At Medinsa, tablets are also the most frequently produced form of medicine; last year alone, 612 million units were produced. Starting from a good compressible granulate or powder mixture, we produce a variety of different tablet forms, each of which is optimally tailored to specific drug treatments. In addition to film-coated and sustained-release tablets, common variations manufactured by us include special forms such as chewable, orally disintegrating, buccal and effervescent tablets. More advanced forms, such as mini- or microtablets and MUPS (Multiple Unit Pellet Systems) produced from pellets, are also part of our highly diversified range of services.

Pellets and MUPS

Pellets are produced using different methods depending on the starting materials and requirement profile. The most common process is layering. Here, the active substance is applied layer by layer onto neutral starter pellets in the form of a solution, suspension or powder. The active substance-coated core is then covered with various protective layers. This can achieve sustained release as well as gastric acid resistance. Alternatively, the pellets can be produced through extrusion and spheronisation. In this case, a granulate containing the active substance is wet extruded, crushed and then rounded to form pellets. After drying and sieving, these pellets are then coated with the appropriate protective layers to achieve effects such as sustained release and gastric acid resistance. 

After completion, the pellets are filled into capsules or sachets. Further processing into MUPS (Multiple Unit Pellet Systems) tablets is also possible. This process involves compressing the pellets with powdered excipients. Undoubtedly, this technology belongs to the top tier in the processing of pellets.

Effervescent tablets

The range of applications for effervescent tablets is very diverse, including for flu remedies, cough relievers, vitamins or painkillers. The water-soluble effervescent tablets are not only pleasant for children but also for the elderly and patients with difficulty swallowing or sensitive stomachs. While effervescent tablets offer many advantages for consumers, the hygroscopic pharmaceutical form is challenging to manufacture and process. Effervescent tablets are large, weighing two to five grammes, and are naturally prone to air entrapment and undesirable capping. Their tabletting is therefore done step by step with increasing compression force, often involving external spraying with magnesium stearate, which acts as a lubricant. Due to their high fragility, the delicate tablets must be filled and packed directly into plastic tubes under dry room conditions.

Quality control

Our robust IT-supported quality management system (QMS) is the basis of our daily work in all GxP (Good Practice)-relevant areas. The system is continuously inspected, both internally and externally, and is continuously refined and improved to ensure its effectiveness.

Our QMS (Quality Management System) is built on innovation, digitalisation and continuous improvement. It strengthens the connection between development and manufacturing activities throughout the entire product lifecycle, from development and manufacturing to product shipment. Our QMS includes monitoring and implementation of industry trends and new regulatory requirements, frequent reviews of our processes and products, monitoring key quality indicators, risk assessments, quality management reviews, audits, inspections and self-inspections. The insights gained from these processes contribute to the development of our quality strategy, ensuring a robust and continuous level of quality. 

In our state-of-the-art laboratories, we rigorously verify the strict adherence to specifications and standards of our raw materials and finished products. All testing is done in-house by our qualified and well-trained staff. This also applies to microbiological testing and hygiene monitoring.   

Our Services

What we also do

In addition to pharmaceutical manufacturing, we place special emphasis on development. We see ourselves as an extended workbench for Aristo Pharma and our third-party customers. Our highly efficient full-service approach supports new pharmaceuticals from conception and formulation to post-marketing production.

Process optimisation

We advise and support our customers in implementing optimisation potentials related to manufacturing, analytics or the stability of products. Optimisation is not limited to quality issues; it can also extend to improving efficiency, reducing costs and enhancing sustainability.

Method and technology transfer

The launch and transfer of a new product is a complex process that requires intensive project support. Our experienced project management team brings all internal and external stakeholders to the table and develops a product-specific, detailed project timeline of all necessary activities.

Pilot batches

We start our development trials with micro-batches, gradually scale up to an industrial batch size and validate as the development progresses. Using the same machine technologies at pilot and industrial scale ensures a safe, low-risk transition between development phases.

Laboratory analyses

Our quality control laboratory enables the full range of analysis and control processes required in development and production. All tests are performed using the latest analytical and chromatography methods, including microbiological testing.


The products are properly packaged directly on site by our packaging lines, whether it be thermoformed plastic or cold-formed aluminium blisters, plastic or glass bottles, or plastic tubes. We are happy to support our customers in finding sustainable packaging solutions as well.

Storage and logistics

As a Contract Development and Manufacturing Organisation (CDMO), we offer comprehensive warehousing and logistics services. We take care of inventory management, monitoring warehousing operations, customs clearance of import and export goods and ensure the timely shipment of goods.


Are you looking for a contract manufacturer? Get in touch with us.

Do you have questions about our services, would you like advice or a quote? Then get in touch with us. We are available to you at any time by phone or email.

Your contact for contract manufacturing of pharmaceutical products near Madrid

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