This page has been automatically translated. Please refer to the page in French if needed.
Third party paying
From 1 Sep 2026
New rules for the reimbursement of medicines from 1 September
Publié le 29 juillet 2026 - Public Service / Directorate of Legal and Administrative Information (Prime Minister)
A hybrid or biosimilar medicinal product contains the same active substance as the reference medicinal product. A pharmacist can therefore offer you this type of substitution treatment. From 1er in september 2026, reimbursement terms change if you refuse to take a hybrid or biosimilar drug instead of the reference treatment without medical evidence.

Health Insurance covers all or part of the cost of the reimbursable medicines you buy. And your Vitale card allows you not to have to advance this part of the costs covered by the Health Insurance; it is the ‘third-party payment’ principle.
From 1er in september 2026, you will no longer benefit from the third-party payment if you refuse the substitution that may be offered to you by a pharmacist: take a biosimilar or hybrid drug instead of a reference drug. You will therefore have to pay the pharmacist the full amount of the drug. You will then be reimbursed by the Health Insurance, at the fixed rate.
One hybrid drug contains the same active substance as a reference medicinal product; however, it differs from the latter by a difference concerning, for example:
- the therapeutic form (for example, a hybrid medicine may be offered as an oral solution to make it easier for very young or elderly patients to use);
- dosing (a hybrid drug may, for example, have a dosage that reduces the number of times a day it takes treatment);
- the route of administration (a new route of administration may be used to make it easier for people with difficulty swallowing to take the medicine).
One biosimilar medicinal product is similar to a reference biologic drug (there are very slight differences between the two). A biological drug is a treatment made from a living cell or organism. These include hormones (insulins, growth hormones, etc.) or vaccines. A biosimilar medicinal product may be produced when the patent for the reference biological medicinal product has become publicly available.
Warning
In some cases, the reimbursement by the Health Insurance of the drug delivered will be based on the most expensive biosimilar or hybrid drug of the « biosimilar » or « hybrid » group concerned (each group consists of a reference treatment, and hybrid or biosimilar drugs that can be substituted for it), and not on the basis of the reference drug that you have purchased. If the price of the reference medicine that has been delivered to you is higher than the price of the biosimilar or hybrid medicine, the additional cost will be borne by you.
Example: a reference drug costs 20 €, and the hybrid drug 18 €. If you refuse the pharmacist to deliver the hybrid medicine to you, you pay the reference medicine 20 €; and you are reimbursed by the Health Insurance on the basis of 18 € and not 20 €.
Your pharmacist is not allowed to replace the reference treatment with a hybrid or biosimilar medicine, if your doctor has ruled this out in view of your medical situation ; your doctor must have clearly stated on the prescription that it is not possible to substitute the reference medicine with another treatment.
Please note
The non-application rule of the third party payer is already in force for generic medicines. In principle, you do not benefit from the third-party payment in pharmacies if you refuse to replace a reference drug with a generic drug. However, you can discuss with your pharmacist a problem with the generic medicine (for example, an unpleasant taste or a less convenient tablet form).
The Health Insurance underlines that « by accepting a hybrid or biosimilar drug where substitution is possible, continuity of treatment is ensured, while contributing to the control of health expenditure, the prevention of supply disruptions and the maintenance of sustainable access to treatment for all ».
Please note
Hybrid and biosimilar medicinal products, like any treatment available in France, are the subject of a marketing authorization application evaluated by the French National Agency for the Safety of Medicines and Health Products (ANSM) or the European Medicines Agency (EMA).
Additional topics
Service Public
Service Public
National Health Insurance Fund (Cnam)
Agenda
Jusqu'au 28 juil. 2026
Soldes
Publié le 06 juillet 2026
À partir du 15 juil. 2026
Enseignement supérieur
Publié le 17 juin 2026