In principle both work on the piston engine but is a Rolls Royce the same as a Honda Civic?

In principle a English fried fish and chips is equivalent to a Madras fish curry but they are not the same.
So here is an example acting in defiance of common sense:

http://www.aljazeera.com/news/asia-pacific/2014/08/japan-ready-offer-flu-drug-ebola-20148258322399660.html

How on earth is a cure for a tuberculosis today the same as cure for a toothache