Isentress 400 mg tablets
- Name:
Isentress 400 mg tablets
- Company:
MSD Ireland (Human Health) Limited
- Active Ingredients:
- Legal Category:
Product subject to medical prescription which may not be renewed (A)
Patient Information Leaflet Patient Information Leaflet last updated on medicines.ie: 06/11/20

Click on this link to Download PDF directly
MSD Ireland (Human Health) Limited

Company Products
When a pharmaceutical company changes any document, a new version is published on medicines.ie. For each version, we show the dates it was published on medicines.ie and the reasons for change.
Updated on 6 November 2020 PIL
Reasons for updating
- Change to section 2 - excipient warnings
- Change to section 4 - how to report a side effect
- Change to section 6 - date of revision
- Correction of spelling/typing errors
Updated on 6 November 2020 SPC
Reasons for updating
- Change to section 4.4 - Special warnings and precautions for use
- Change to Section 4.8 – Undesirable effects - how to report a side effect
- Change to section 10 - Date of revision of the text
- Correction of spelling/typing errors
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Update to implement the 2017 excipient guideline
Updated on 24 July 2019 PIL
Reasons for updating
- Change to section 6 - date of revision
Updated on 23 July 2019 PIL
Reasons for updating
- Change to section 6 - date of revision
Updated on 16 July 2019 PIL
Reasons for updating
- Change to section 6 - date of revision
Updated on 1 March 2019 SPC
Reasons for updating
- Change to section 10 - Date of revision of the text
- Improved presentation of SPC
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Improved presentation of SPC
Change to section 10 - Date of revision of the text
Editorial updates
Updated on 21 November 2018 PIL
Reasons for updating
- Change to section 2 - pregnancy, breast feeding and fertility
Updated on 21 November 2018 SPC
Reasons for updating
- Change to section 4.6 - Pregnancy and lactation
- Change to section 5.3 - Preclinical safety data
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Change to section 4.6 & 5.3 (update regarding pregnancy and risk of malformative or foetal toxicity (LEG)
Updated on 22 October 2018 SPC
Reasons for updating
- Change to section 4.4 - Special warnings and precautions for use
- Change to section 4.8 - Undesirable effects
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Change to section 4.4 & Change to section 4.8: addition of "autoimmune hepatitis”
Updated on 26 June 2018 SPC
Reasons for updating
- Change to section 7 - Marketing authorisation holder
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Change to section 7 - Marketing authorisation holder
Present |
Proposed |
Merck Sharp & Dohme Ltd. |
Merck Sharp & Dohme B.V. |
Updated on 26 June 2018 PIL
Reasons for updating
- Change to section 6 - marketing authorisation holder
- Change to section 6 - date of revision
Updated on 3 May 2018 SPC
Reasons for updating
- Change to section 4.1 - Therapeutic indications
- Change to section 4.2 - Posology and method of administration
- Change to section 4.8 - Undesirable effects
- Change to section 5.2 - Pharmacokinetic properties
- Change to section 10 - Date of revision of the text
- Correction of spelling/typing errors
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Change to section 4.1 (update regarding Paediatric population) Change to section 4.2 (update regarding Paediatric population); Change to Section 4.8 (update the safety information); Change to section 5.2 (update regarding Paediatric population)
Updated on 24 April 2018 PIL
Reasons for updating
- Change to section 2 - what you need to know - warnings and precautions
- Change to section 4 - how to report a side effect
- Change to section 6 - date of revision
Updated on 27 March 2018 SPC
Reasons for updating
- New SPC for new product
Legal category: Product subject to medical prescription which may not be renewed (A)
Updated on 27 March 2018 SPC
Reasons for updating
- Change to section 4.8 - Undesirable effects
- Change to section 5.1 - Pharmacodynamic properties
- Change to section 10 - Date of revision of the text
- Correction of spelling/typing errors
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Change to Section 4.8 (update the safety information); Change to section 5.1 (editorial corrections);
Updated on 6 November 2017 PIL
Reasons for updating
- New PIL for new product
Updated on 6 November 2017 SPC
Reasons for updating
- Change to section 6.5 - Nature and contents of container
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Change to section 6.5: add the term “multipack”
Updated on 6 November 2017 PIL
Reasons for updating
- Change to section 6 - what the product looks like and pack contents
- Change to section 6 - date of revision
Updated on 11 August 2017 SPC
Reasons for updating
- Change to section 4.2 - Posology and method of administration
- Change to section 4.5 - Interaction with other medicinal products and other forms of interaction
- Change to section 4.6 - Pregnancy and lactation
- Change to Section 4.8 – Undesirable effects - how to report a side effect
- Change to section 10 - Date of revision of the text
- Correction of spelling/typing errors
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Updated on 10 August 2017 PIL
Reasons for updating
- Change to section 1 - what the product is used for
- Change to section 2 - interactions with other medicines, food or drink
- Change to section 3 - use in children/adolescents
- Change to section 3 - overdose, missed or forgotten doses
- Change to section 4 - possible side effects
- Change to section 6 - date of revision
Updated on 5 December 2016 SPC
Reasons for updating
- Correction of spelling/typing errors
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
SPC change details: Minor formatting changes to tables
Updated on 21 January 2015 SPC
Reasons for updating
- Change to section 4.2 - Posology and method of administration
- Change to section 4.4 - Special warnings and precautions for use
- Change to section 4.5 - Interaction with other medicinal products and other forms of interaction
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Updated on 4 September 2014 SPC
Reasons for updating
- Change to section 4.1 - Therapeutic indications
- Change to section 4.2 - Posology and method of administration
- Change to section 4.7 - Effects on ability to drive and use machines
- Change to section 4.8 - Undesirable effects
- Change to section 5.1 - Pharmacodynamic properties
- Change to section 5.2 - Pharmacokinetic properties
- Change to section 6.1 - List of excipients
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Updated on 26 June 2014 PIL
Reasons for updating
- Change to warnings or special precautions for use
- Addition of information on reporting a side effect.
Updated on 3 June 2014 SPC
Reasons for updating
- Change to section 2 - Qualitative and quantitative composition
- Change to section 4.2 - Posology and method of administration
- Change to section 4.4 - Special warnings and precautions for use
- Change to section 4.5 - Interaction with other medicinal products and other forms of interaction
- Change to section 4.8 - Undesirable effects
- Change to section 6.6 - Special precautions for disposal and other handling
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Changes to Sections: 2, 4.2, 4.4, 4.5, 4.8, 6.6, 10
Updated interactions (Effect on pharmacokinetics of boceprevir)
Updated on 13 September 2013 PIL
Reasons for updating
- Change to warnings or special precautions for use
- Change to side-effects
- Change to date of revision
Updated on 6 September 2013 SPC
Reasons for updating
- Change to section 4.2 - Posology and method of administration
- Change to section 4.4 - Special warnings and precautions for use
- Change to section 4.5 - Interaction with other medicinal products and other forms of interaction
- Change to section 4.8 - Undesirable effects
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Updated on 3 July 2013 PIL
Reasons for updating
- Change to warnings or special precautions for use
Updated on 14 June 2013 SPC
Reasons for updating
- Change to section 4.4 - Special warnings and precautions for use
- Change to section 4.5 - Interaction with other medicinal products and other forms of interaction
- Change to section 4.8 - Undesirable effects
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
SPC sections have changed: 4.4, 4.5, 4.8, 10 - Updated warnings re: autoimmune disorders; interactions with boceprevir
Updated on 8 April 2013 PIL
Reasons for updating
- Change to warnings or special precautions for use
- Change to side-effects
- Change to further information section
Updated on 6 March 2013 SPC
Reasons for updating
- Change to section 2 - Qualitative and quantitative composition
- Change to section 4.1 - Therapeutic indications
- Change to section 4.2 - Posology and method of administration
- Change to section 4.4 - Special warnings and precautions for use
- Change to section 4.5 - Interaction with other medicinal products and other forms of interaction
- Change to section 4.6 - Pregnancy and lactation
- Change to section 4.8 - Undesirable effects
- Change to section 5.1 - Pharmacodynamic properties
- Change to section 5.2 - Pharmacokinetic properties
- Change to section 5.3 - Preclinical safety data
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Following SPC sections have changed: 2, 4.1, 4.2, 4.4, 4.5, 4.6, 4.8, 5.1, 5.2, 5.3, 10.
Added paediatric indication; updated interactions (omeprazole and famotidine); updated fertility, pregnancy and lacation information; updated side effects
Updated on 11 January 2013 SPC
Reasons for updating
- Change to section 4.5 - Interaction with other medicinal products and other forms of interaction
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
SPC sections: 4.5, 10 - Updated pharmacokinetics for raltegravir and darunavir
Updated on 10 January 2013 PIL
Reasons for updating
- Change to side-effects
- Change to further information section
Updated on 3 December 2012 SPC
Reasons for updating
- Change to section 4.4 - Special warnings and precautions for use
- Change to section 4.8 - Undesirable effects
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Detailed SPC change information: Added reference to hepatic failure (uncommon)
Updated on 12 September 2012 PIL
Reasons for updating
- Change to further information section
Updated on 24 August 2012 SPC
Reasons for updating
- Change to section 5.2 - Pharmacokinetic properties
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Updated on 10 April 2012 PIL
Reasons for updating
- Change to warnings or special precautions for use
- Change to side-effects
- Change to further information section
Updated on 4 April 2012 SPC
Reasons for updating
- Change to section 4.4 - Special warnings and precautions for use
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Sections 4.4 (Special warnings and precautions for use
)
Added warning on depression
Updated on 29 February 2012 SPC
Reasons for updating
- Change to section 4.8 - Undesirable effects
- Change to section 5.1 - Pharmacodynamic properties
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Sections 4.8 (
Undesirable effects), 5.1 (Pharmacodynamic properties)
Added side effects / modified side effect frequencies.
Updated on 16 January 2012 PIL
Reasons for updating
- Change to side-effects
Updated on 7 December 2011 SPC
Reasons for updating
- Change to section 4.4 - Special warnings and precautions for use
- Change to section 4.8 - Undesirable effects
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Sections 4.4 and 4.8 updated
Added warnings for Severe skin and hypersensitivity reactions and updated uncommon side effects
Updated on 24 November 2010 PIL
Reasons for updating
- Change to side-effects
Updated on 22 September 2010 SPC
Reasons for updating
- Change to section 4.8 - Undesirable effects
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Section 4.8 & 10
4.8 The update concerns the addition of the terms "rhabdomyolysis" and "thrombocytopenia" in section 4.8 of the SPC based upon post-marketing reports. The frequency category of the ADRs identified in the post-marketing period "Stevens-Johnson Syndrome" and "Suicidal ideation and suicidal behaviour" is changed from "not known" to "uncommon
10 - Amend date of revision
Updated on 17 May 2010 PIL
Reasons for updating
- Change to warnings or special precautions for use
- Change to side-effects
- Change to date of revision
Updated on 21 April 2010 SPC
Reasons for updating
- Change to section 4.1 - Therapeutic indications
- Change to section 4.4 - Special warnings and precautions for use
- Change to section 4.8 - Undesirable effects
- Change to section 5.1 - Pharmacodynamic properties
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
To include additional clinical data (96 weeks data)
Section 4.1, 4.4, 4.8, 5.1 and 10 have changed
Section 4.1, 4.4, 4.8, 5.1 and 10Updated on 6 October 2009 PIL
Reasons for updating
- Change to side-effects
- Changes to therapeutic indications
Updated on 2 October 2009 SPC
Reasons for updating
- Change to section 4.1 - Therapeutic indications
- Change to section 4.2 - Posology and method of administration
- Change to section 4.5 - Interaction with other medicinal products and other forms of interaction
- Change to section 4.8 - Undesirable effects
- Change to section 5.1 - Pharmacodynamic properties
- Change to section 5.3 - Preclinical safety data
- Change to section 9 - Date of renewal of authorisation
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Updated on 12 August 2009 PIL
Reasons for updating
- Change to side-effects
Updated on 10 June 2009 SPC
Reasons for updating
- Change to section 5.3 - Preclinical safety data
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Update to Section 5.3 Preclinical safety data.
Updated on 20 May 2009 SPC
Reasons for updating
- Change to section 10 - Date of revision of the text
- Change to section 4.8 - Undesirable effects
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
To add the following to section 4.8:
suicidal ideation, suicidal behaviour (particularly in patients with a pre-existing history of psychiatric illness).
Updated on 15 May 2009 PIL
Reasons for updating
- Change to side-effects
Updated on 28 January 2009 PIL
Reasons for updating
- Improved electronic presentation
Updated on 20 January 2009 SPC
Reasons for updating
- Change to section 4.1 - Therapeutic indications
- Change to section 4.5 - Interaction with other medicinal products and other forms of interaction
- Change to section 4.8 - Undesirable effects
- Change to section 5.1 - Pharmacodynamic properties
- Change to section 8 - MA number
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Changes are to Sections 4.1, 4.5, 4.8, 5.1, 8 & 10.
Updated on 8 September 2008 PIL
Reasons for updating
- Change to side-effects
Updated on 5 September 2008 SPC
Reasons for updating
- Change to section 4.8 - Undesirable effects
- Change to section 10 - Date of revision of the text
Legal category: Product subject to medical prescription which may not be renewed (A)
Free text change information supplied by the pharmaceutical company
Changes are to Section 4.8 and 10.
Updated on 31 January 2008 SPC
Reasons for updating
- New SPC for new product
Legal category: Product subject to medical prescription which may not be renewed (A)
Updated on 31 January 2008 PIL
Reasons for updating
- New PIL for new product