“The time may come when penicillin can be bought by anyone in the shops. Then there is the danger that the ignorant man may easily under dose himself and by exposing his microbes to non-lethal quantities of the drug make them resistant. Here is a hypothetical illustration. Mr. X. has a sore throat. He buys some penicillin and gives himself, not enough to kill the streptococci but enough to educate them to resist penicillin. He then infects his wife. Mrs. X gets pneumonia and is treated with penicillin. As the streptococci are now resistant to penicillin the treatment fails. Mrs. X dies. Who is primarily responsible for Mrs. X’s death?” Above statement has been borrowed from the Alexander Fleming’s noble lecture delivered on December 11, 1945. [1] Fleming’s serendipitous discovery of penicillin and its therapeutic potential in treating bacterial infection was a boon to mankind. However, shortly thereafter resistance to penicillin as well other discoverd antibiotics was observed. Scie...