The practice of medicine developed gradually.

The practice of medicine developed gradually in ancient Egypt, Babylonia, India, China, Greece, Persia, the Islamic world, medieval Europe, and elsewhere. Medicine as it is now practiced largely developed during the Middle Ages and early modern period in Persia (Rhazes and Avicenna), Spain (Abulcasis and Avenzoar), Syria/Egypt (Ibn al-Nafis, 13th century), England (William Harvey, 17th century), Germany (Rudolf Virchow, 19th century) and France (Jean-Martin Charcot, Claude Bernard and others). The new "scientific" or "experimental" medicine (where results are testable and repeatable) replaced early Western traditions of medicine, based on herbalism, the Greek "four humours" and other pre-modern theories.
The focal points of development of clinical medicine shifted to the United Kingdom and the USA by the early 1900s (Canadian-born) Sir William Osler, Harvey Cushing). Possibly the major shift in medical thinking was the gradual rejection, especially during the Black Death in the 14th and 15th centuries, of what may be called the 'traditional authority' approach to science and medicine. This was the notion that because some prominent person in the past said something must be so, then
http://ephedrine.townhall.com
http://informationfioricet.townhall.com
http://hoodiagordonii.townhall.com
http://hoodiagordoniiplus.townhall.com
http://darvocet.townhall.com/
http://synthroid.townhall.com
http://fioricettreatment.townhall.com
http://metrogel.townhall.com
http://zofran.townhall.com
http://clomid.townhall.com
http://sumycin.townhall.com
http://keflex.townhall.com
http://meridiatablets.townhall.com
http://fastweightloss.townhall.com
http://quickweightloss.townhall.com
http://weightlosstips.townhall.com
http://weightlossprograms.townhall.com
http://headacherelief.townhall.com
http://treatmentfiorciet.townhall.com
http://migraineheadaches.townhall.com
http://migraneheadacherelief.townhall.com
http://firstidea.townhall.com
http://tompson.townhall.com
http://prozacco.townhall.com
http://splavixi.townhall.com
http://lunexiumi.townhall.com
http://tambienco.townhall.com
http://povaliummer.townhall.com
http://povicodinox.townhall.com
http://ordercheapultram1.townhall.com
http://snadipexnew.townhall.com
http://wersomano.townhall.com
http://mativansol.townhall.com
http://raciphexcity.townhall.com
http://dultramino.townhall.com
http://persomali.townhall.com
http://olvicodinone.townhall.com that was the way it was, and anything one observed to the contrary was an anomaly (which was paralleled by a similar shift in European society in general - see Copernicus's rejection of Ptolemy's theories on astronomy). Physicians like Ibn al-Nafis and Vesalius led the way in improving upon or indeed rejecting the theories of great authorities from the past (such as Hippocrates, Galen and Avicenna), many of whose theories were in time discredited. Such new attitudes were made possible in Europe by the weakening of the Roman Catholic church's power in society, especially in the Republic of Venice.
Evidence-based medicine is a recent movement to establish the most effective algorithms of practice (ways of doing things) through the use of the scientific method and modern global information science by collating all the evidence and developing standard protocols which are then disseminated to healthcare providers. One problem with this 'best practice' approach is that it could be seen to stifle novel approaches to treatment.
Drug ampoules
Drug ampoules

 

Genomics and knowledge of human genetics is already having some influence on medicine, as the causative genes of most monogenic genetic disorders have now been identified, and the development of techniques in molecular biology and genetics are influencing medical practice and decision-making.