Hi,
Thank you for posting your query.
I have noted your mother-in-law's symptoms and findings. 
Based on that, she seems to have suffered a brain stroke (lack of blood flow to brain).
Ecosprin AV consists of 
aspirin and 
atorvastatin. Aspirin is a blood thinner and atorvastatin controls 
cholesterol levels. Both these medicines prevent the recurrence of brain stroke. They are reasonably safe medicines.
In addition, her 
diabetes should be kept under control too.
I hope my answer helps. Please get back if you have any follow up queries or if you require any additional information.
Wishing you good health,
Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad, India
Click on this link to ask me a DIRECT QUERY: http://bit.ly/Dr-Sudhir-kumar
My BLOG: http://bestneurodoctor.blogspot.in