Tetrazepam-containing medicines

  • Procedure started
  • Under evaluation
  • PRAC recommendation
  • CMDh position
  • European Commission final decision
Current status
European Commission final decision



Tetrazepam-containing medicines suspended across the EU

On 24 April 2013, following the recommendation by the Pharmacovigilance Risk Assessment Committee (PRAC), the Coordination Group for Mutual Recognition and Decentralised Procedures – Human (CMDh) endorsed by majority the PRAC recommendation to suspend the marketing authorisations of tetrazepam-containing medicines across the European Union (EU). The CMDh, a body representing EU Member States, is responsible for ensuring harmonised safety standards for medicines authorised via national marketing-authorisation procedures across the EU.

Tetrazepam, a medicine of the benzodiazepine class, is used in several EU Member States to treat painful contractures (such as in low-back pain and neck pain) and spasticity (excessive stiffness of muscles).

The review of tetrazepam was triggered by the French National Agency for the Safety of Medicine and Health Products (ANSM), following reports of serious skin reactions with this medicine in France. Having assessed all available data on the risk of skin reactions, including post-marketing data in the EU and the published literature, the PRAC concluded that tetrazepam is associated with a low but increased risk of serious skin reactions (including Stevens-Johnson syndrome, toxic epidermal necrolysis and drug-rash-with-eosinophilia-and-systemic-symptoms (DRESS) syndrome) compared with other benzodiazepines. The Committee also noted that, in the light of the risks identified, the available data on the effectiveness of tetrazepam were not sufficiently robust to support its use in the authorised indications.

The CMDh agreed with the PRAC conclusion that the benefits of these medicines do not outweigh their risks, and adopted a final position that the marketing authorisations should be suspended throughout the EU. Because the CMDh took this position by majority it was sent to the European Commission, which endorsed it and adopted a legally binding decision on 29 May 2013.

The suspension of the marketing authorisations can be lifted if the companies that market these medicines provide data identifying a specific group of patients for whom the benefits of tetrazepam-containing medicines outweigh the risks.

Key facts

About this medicine
Approved name
Tetrazepam-containing medicines
International non-proprietary name (INN) or common name
Associated names
Myolastan and generics
About this procedure
Current status
European Commission final decision
Reference number
Article 107i procedures

This type of procedure is triggered when a Member State or the European Commission consider that urgent action is necessary because of a safety issue. Situations that fall under this procedure include consideration for suspension or revocation of the marketing authorisation for a medicine, the prohibition of supply of a medicine or major changes to the marketing authorisation such as deletion of indications, reduction of the recommended dose or new contraindications. The procedure is also applicable in case of a safety issue with a class of medicines.

Authorisation model
Nationally authorised product(s)
Decision making model
Key dates and outcomes
Procedure start date
PRAC recommendation date
CHMP opinion/CMDh position date
EC decision date

Data submission

The Agency invites all stakeholders (e.g. healthcare professionals, patients' organisations and the general public) to submit data relevant to this procedure. This is in accordance with Article 107j(1) of Directive 2001/83/EC.

The following requirements apply for data to be considered:

  • Submissions must be accompanied by the submission form below, with all fields completed. The form must be used with Adobe Reader X+ or Adobe Acrobat X+:
    PDF icon Stakeholder's submission form
  • The submission of all data should take place by 4 February 2013.

Submitting data

Send the completed form electronically to the stakeholders' submission inbox (public@ema.europa.eu). Specify the name of the medicine in the subject line of the e-mail.

The size of the submission file should not exceed 25 MB. If your attempt to send your data package to the dedicated e-mail address is unsuccessful, please use alternative submission means.

It is of the utmost importance that data are provided promptly, to avoid undermining the safety review. Due to the urgent nature of the procedure, you are strongly advised to submit your data in English.

Protection of personal data

Personal data submitted are subject to data-protection rules as established by Regulation (EC) 45/2001. They will be treated in accordance with the specific privacy statement for public consultations.

Treatment and publication of data

Data submitted will be received and recorded by the Agency.

The Agency will prepare a list of all submissions received, which will be published as an annex to the PRAC assessment report for transparency purposes and public awareness.

Please note that all data submitted in the context of this procedure may be shared and disclosed in the public domain.

All documents

Procedure started

Recommendation provided by Pharmacovigilance Risk Assessment Committee

Position provided by CMDh

  • List item

    Tetrazepam-containing medicines - Article-107i procedure - Tetrazepam-containing medicines suspended across the EU (PDF/95.94 KB)


    First published: 29/07/2013
    Last updated: 29/07/2013
    EMA/402567/2013 – Rev. 1

  • List item

    Tetrazepam-containing medicines - Article-107i procedure - Annex III (PDF/18.59 KB)

    First published: 08/05/2013
    Last updated: 08/05/2013

  • List item

    Tetrazepam-containing medicines - Article-107i procedure - Annex I (PDF/135.42 KB)

    First published: 08/05/2013
    Last updated: 08/05/2013

  • List item

    Tetrazepam-containing medicines - Article-107i procedure - Divergent positions to CMDh position (PDF/44.77 KB)

    First published: 08/05/2013
    Last updated: 08/05/2013

  • List item

    Tetrazepam-containing medicines - Article-107i procedure - Annex II (PDF/61.24 KB)


    First published: 08/05/2013
    Last updated: 08/05/2013

  • Description of documents published

    Please note that some of the listed documents apply only to certain procedures.

    • Overview - lay-language summary of the stage of the procedure
    • Notification – a letter from a Member State, the European Commission or the marketing authorisation holder requesting the initiation of the procedure
    • Scientific background – further background information from the triggering Member State on the issues leading to the initiation of the procedure (if applicable)
    • List of questions – questions agreed by the Committee requesting further information from the marketing authorisation holder(s) / applicant(s) to evaluate the issues identified
    • Timetable for the procedure – agreed timeframe to respond to the list of questions, to assess the issues and to adopt a conclusion
    • List of medicines concerned by the procedure – medicine(s) / active substance(s) concerned, and marketing authorisation holder(s) / applicant(s)
    • List of questions to be addressed by the stakeholders – call for data to be submitted by stakeholders (e.g. healthcare professionals, patient organisations, individual patients) (if applicable)
    • Stakeholder submission form – form to be used by stakeholders to submit data (if applicable)
    • Scientific conclusions – scientific conclusions of the PRAC and/or CHMP and/or CMDh
    • Assessment report – PRAC or CHMP assessment and conclusions on the issues investigated, including divergent positions (if applicable)
    • Divergent positions – divergent positions of the CHMP or CMDh members for pharmacovigilance procedures (if applicable)
    • Changes to the summary of product characteristics, labelling and package leaflet (amended sections or fully revised version) (if applicable)
    • Condition(s) to the marketing authorisation(s) – condition(s) for the safe and effective use of the medicine(s) (if applicable)
    • Condition for lifting the suspension – condition to be fulfilled for the suspension of the marketing authorisation(s) to be lifted (if applicable)
    • Timetable for implementation of CMDh position – agreed timeframe to submit and finalise the variation(s) implementing the outcome of the procedure (if applicable)

    Note that older documents may have different titles.

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