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Introduction
“Quality means freedom from deficiencies – freedom from
errors that require doing work again (rework) or that
results in field failures, customer dissatisfaction,
customer claims.” Joseph M. Duran, Father of QA
“Although drugs are responsible for therapeutic
activity, it is a medicine and not a drug which a
patient receives in the treatment of an illness. The
difference separating a medicine from a drug is the
presence of excipients and these may lead to changes in
the biopharmaceutical performance of the system”
History of Excipients
Although important pharmaceutical industry has been
using excipients, developed over the last century or
little more, excipients per se have been used since
ancient time. Given below is evolution of excipients:
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