OLYSIO® sales during the first quarter 2015


Stockholm, Sweden — Medivir AB (Nasdaq Stockholm: MVIR) announces that the
global first quarter net sales of OLYSIO® (simeprevir) amounted to 234 MUSD, of
which 98 MUSD were sales in the USA.

Medivir’s royalties based on sales for the first quarter are calculated from the
lowest royalty tier and currency conversion from USD to Euro is based on the YTD
exchange rate.
The royalty amounted to 129 MSEK (13.8 MEUR).

OLYSIO® global net sales               Sales in MUSD
Market                       Q1 -2015     Q1-2014     Change
US                              98          291        -66%
RoW                            136          63         116%
Total global net sales MUSD    234          354        -34%

Medivir will publish its Financial Statement on May 5, 2015 at 10.00 CET
followed by a conference call for investors, analysts and the media at 12.30
CET. More information about the conference call/webcast will be posted at
www.medivir.com.

For more information please contact:
Ola Burmark, CFO: +46 725 480 580

Medivir is required under the Securities Markets Act to make the information in
this press release public. The information was submitted for publication at
13.55 CET on 14 April 2015.

About Simeprevir (OLYSIO®)
Simeprevir is an NS3/4A protease inhibitor jointly developed by Janssen Sciences
Ireland UC and Medivir AB and indicated for the treatment of chronic hepatitis C
infection as a component of a combination antiviral treatment regimen.
Simeprevir efficacy has been established in HCV genotype 1 and HCV genotype 4
infected patients with compensated liver disease, including cirrhosis. Janssen
is responsible for the global clinical development of simeprevir and has
exclusive, worldwide marketing rights, except in the Nordic countries. Medivir
AB retains marketing rights for simeprevir in these countries under the
marketing authorization held by Janssen-Cilag International NV. In November
2013, simeprevir was approved by the U.S. Food & Drug Administration and, in May
2014, it was granted marketing authorisation by the European
Commission. Subsequent marketing authorisations have followed in several other
countries around the world. Indications vary by market.

About Medivir
Medivir is a research based pharmaceutical company with a research focus on
infectious diseases and oncology. We have a leading competence within protease
inhibitor design and nucleotide/nucleoside science and we are dedicated to
develop innovative pharmaceuticals that meet great unmet medical need. Our
commercial organization provides a growing portfolio of specialty care
pharmaceuticals on the Nordic market. Medivir is listed on the Nasdaq Stockholm
Mid Cap List.

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