Skip to Content


Active Substance: miglustat
Common Name: miglustat
ATC Code: A16AX06
Marketing Authorisation Holder: JensonR+ Limited
Active Substance: miglustat
Status: Authorised
Authorisation Date: 2017-03-22
Therapeutic Area: Gaucher Disease
Pharmacotherapeutic Group: Other alimentary tract and metabolism products

Therapeutic Indication

Treatment of Gaucher disease.

What is Yargesa and what is it used for?

Yargesa is a medicine used to treat adults with mild to moderate type-1 Gaucher disease.

Patients with this disease lack an enzyme that breaks down a type of fat called glucosylceramide. As a result, glucosylceramide builds up in different parts of the body, such as the spleen, liver and bones. Yargesa is used in patients who cannot receive enzyme-replacement therapy.

Yargesa is a ‘generic medicine’. This means that it contains the same active substance (miglustat) and works in the same way as a ‘reference medicine’ already authorised in the European Union (EU) called Zavesca.

How is Yargesa used?

Yargesa is available as 100 mg capsules to be taken by mouth. The recommended starting dose is one capsule three times a day. A lower dose should be used in patients with reduced kidney function and those who develop diarrhoea.

The medicine can only be obtained with a prescription and treatment should be supervised by doctors who are experienced in the management of Gaucher disease.

For more information, see the package leaflet.

How does Yargesa work?

The active substance in Yargesa, miglustat, prevents an enzyme called glucosylceramide synthase from working. This enzyme is involved in the first step of the production of glucosylceramide. By preventing the enzyme from working, miglustat can reduce the production of glucosylceramide in cells, thereby reducing the symptoms of type-1 Gaucher disease.

How has Yargesa been studied?

Studies on the benefits and risks of the active substance in the approved use have already been carried out with the reference medicine, Zavesca, and do not need to be repeated for Yargesa.

As for every medicine, the company provided studies on the quality of Yargesa. The company also carried out a study that showed that it is ‘bioequivalent’ to the reference medicine. Two medicines are bioequivalent when they produce the same levels of the active substance in the body and are therefore expected to have the same effect.

What are the benefits and risks of Yargesa?

Because Yargesa is a generic medicine and is bioequivalent to the reference medicine, its benefits and risks are taken as being the same as the reference medicine’s.

Why is Yargesa approved?

The Agency’s Committee for Medicinal Products for Human Use (CHMP) concluded that, in accordance with EU requirements, Yargesa has been shown to have comparable quality and to be bioequivalent to Zavesca. Therefore, the CHMP’s view was that, as for Zavesca, the benefit outweighs the identified risk. The Committee recommended that Yargesa be approved for use in the EU.

What measures are being taken to ensure the safe and effective use of Yargesa?

Recommendations and precautions to be followed by healthcare professionals and patients for the safe and effective use of Yargesa have been included in the summary of product characteristics and the package leaflet.

Other information about Yargesa

The European Commission granted a marketing authorisation valid throughout the European Union for Yargesa on 22 March 2017.

For more information about treatment with Yargesa, read the package leaflet (also part of the EPAR) or contact your doctor or pharmacist.

Source: European Medicines Agency

Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. This information has been compiled for use by healthcare practitioners and consumers in the United States. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist.