Definition of Pharmaceutical & Medical Device Classification
What is the difference between Pharmaceutical and Medical Device?
The definition of Pharmaceutical and Medical Device is a key regulatory issue in the healthcare market. Even for experts, this differentiation is not always self-explanatory. Correct classification determines the approval strategy, clinical requirements, regulatory effort, and market access.
Unlike the U.S. FDA, which clearly separates “drugs” and “devices,” the European system is guided by nuanced definitions under different sets of regulations. And in complex cases, the final classification may even be determined by a court ruling, including the European Court of Justice.
According to the legal definitions in the EU, both product groups are used for the “alleviation, prevention, and treatment of diseases.” However, the distinction is based on differentiated definitions and various regulations based on the intended main effect and the ingredient:
- Pharmaceuticals have a pharmacological, immunological, or metabolic effect.
Medical Devices primarily act physically or mechanically.
When is a product considered a Medical Device?
A product is considered a medical device if it is intended for use on or in humans and serves to detect, prevent, monitor, treat, or alleviate diseases. The intended main effect is achieved through physical effects, mechanical principles of action, barrier functions, or supportive substance effects without pharmacological action.
Medical devices also serve to compensate for injuries or disabilities, or to modify or replace anatomical structures or physiological processes.
This classification is based on the legal basis of the EU Medical Device Regulation (MDR) and specifically describes:
“…all … substances and preparations of substances or other objects… which are intended by the manufacturer to be used for human beings by means of their functions for the purpose of detecting, preventing, monitoring, treating or alleviating diseases […] and whose main intended effect in or on the human body is achieved neither by pharmacological or immunological means nor by metabolism, but whose mode of action may be supported by such means…”
Typical examples include bandages, implants, diagnostic devices, and medical devices made of materials without a primary pharmacological effect.
When is a product considered a Pharmaceutical?
Pharmaceuticals are substances or preparations made from substances that are intended for use on or in the human or animal body or can be administered and are intended as agents with properties for healing or alleviating or preventing human or animal diseases or pathological complaints. They are designed to restore, correct, or influence physiological functions through pharmacological processes, immunological mechanisms, or metabolic processes. The effect actively intervenes in biological processes.
The legal basis is provided by the Medicinal Products Act (AMG), which defines:
“Medicinal products are substances or preparations made from substances … that are intended for use in or on the human or animal body and are intended as agents with properties for healing or alleviating or preventing human or animal diseases or pathological conditions …”
Medicinal products are generally products for the treatment of diseases, the alleviation of complaints, or the prevention of diseases.
How relevant is the intended purpose for this classification?
Regulatory classification depends heavily on how the manufacturer describes the effect. The “intended purpose,” also referred to as the “intended main effect,” is the central criterion here.
For example:
- “Physical stool softening” → medical device
- “Influencing the electrolyte balance” → pharmaceuticals
Even small differences in wording can change the regulatory category.
In addition to this classification, the intended purpose also determines the regulatory approval pathway, the clinical requirements, the extent of the conformity assessment, and the market strategy.
What are borderline products in Medical Device Law?
Borderline products are products that cannot be clearly assigned to a specific legal area. They are also referred to as “material medical devices” or “OTC medical devices (over the counter)” and are classified between medical devices, drugs, cosmetics, biocides, and nutrition supplements.
Examples include laxatives based on macrogol or weight loss products based on plant extracts.
Macrogol can be classified differently depending on the argumentation:
| Medical Device Argumentation | Pharmaceutical Argumentation |
|---|---|
| binds water | influences electrolyte balance |
| physical stool softening | metabolic processes |
| unchanged excretion |
→ The intended purpose and proven main effect are decisive.
Similar requirements also apply to the legal areas of food, dietary supplements, dietetic foods, novel foods, and functional foods.
Do you know the correct regulatory classification?
Which EU guidelines help to clarify the distinction between medical devices and pharmaceuticals?
To simplify classification and differentiation in the respective legal areas, a number of interpretative aids on the subject have been published. These documents are updated regularly and serve as guidance in regulatory borderline cases:
Our service
WQS supports manufacturers in the regulatory classification of medical devices, medicinal products, and borderline products.
Our range of services includes:
- regulatory classification analyses
- evaluation of the main effect and intended purpose
- strategy development for MDR-compliant products
- coordination with notified bodies and authorities
- the validation of borderline products
We specialize in ensuring legally compliant and efficient market access for your product.
Pharmaceutical• Medical Devices
The line between medical devices and pharmaceuticals is thin.
WQS analyzes the mechanism of action, defines the primary effect, and develops the regulatory rationale for your product. We coordinate with notified bodies and regulatory authorities and validate borderline products to ensure compliant and efficient market access.
Frequently Asked Questions
When is a product considered a medical device?
A product is a medical device if it is intended to detect, prevent, monitor, treat or alleviate disease, and achieves its main effect without pharmacological, immunological or metabolic means. A supporting substance effect is permitted as long as it is not the primary one. The legal basis is the MDR (EU) 2017/745.
When is a product considered a pharmaceutical?
Pharmaceuticals are substances or preparations intended to heal, alleviate or prevent disease by acting through pharmacological, immunological or metabolic processes. Their effect actively intervenes in physiological functions. The legal basis is the Medicinal Products Act (AMG).
What is the main difference between a Pharmaceutical and Medical Device?
The difference lies in the mode of action. A medical device achieves its primary intended effect physically or mechanically. A pharmaceutical acts pharmacologically, immunologically or metabolically, actively intervening in biological processes. This distinction determines the approval pathway, the clinical requirements and market access.
Why is it sometimes difficult to difference between a Pharmaceutical and Medical Device?
Many products serve similar purposes (e.g. treatment or prevention of disease), but their mechanisms of action can overlap or be unclear, making classification complex—especially for borderline products.
What role does the “intended purpose” play in classification?
The intended purpose defines how the product is supposed to work. If the primary effect is not achieved pharmacologically, immunologically or metabolically, it may be classified as a Medical Device.
Can a product be both a Medical Device and a Pharmaceutical?
Yes, so-called combination products exist. However, one mode of action must be considered primary, which determines the regulatory path (either under MDR or Pharmaceutical Law).
Are there official guidelines to help with classification?
Yes. Key references include the “Manual on Borderline and Classification” from the EU Commission and the “Classification of Medical Devices” guidance by the AGMP Working Group. You can also contact us for support with your Classification Analyses.
References
- Europäisches Parlament & Rat der EU: Verordnung (EU) 2017/745 über Medizinprodukte (MDR), Amtsblatt der Europäischen Union, 5. Mai 2017 – eur-lex.europa.eu
- Bundesministerium für Gesundheit: Arzneimittel – bundesministerium.com
- Europäisches Parlament & Rat der EU: Richtlinie 2001/83/EG zur Schaffung eines Gemeinschaftskodexes für Humanarzneimittel – eur-lex.europa.eu
- Eropean Commision: MDCG Guidance 2022-5 Rev.1 (2024) – Borderline Guidance – health.ec.europa.eu
- Eropean Commision: Manual on Borderline and Classification (2023) – health.ec.europa.eu
