/usr/lib/x86_64-linux-gnu/libmedC.so is in libmedc-dev 3.0.6-9build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libmedC.so.1.4.1
/usr/lib/x86_64-linux-gnu/libmedC.so.1.4.1