Drug approval: a long and complicated procedure

[riky]

Drug approval: a long and complicated procedure

<p><a href="http://news.yahoo.com/drug-approval-long-complicated-procedure-201248918.html"><img src="http://l.yimg.com/bt/api/res/1.2/3Oe8NBPFkK5Gz8nSWliKVQ--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTg2O3E9NzU7dz0xMzA-/http://media.zenfs.com/en_us/News/afp.com/02a44daeafc356de6d106897155901fbd5420f3e.jpg" width="130" height="86" alt="A pharmacist searches for drugs in a pharmacy in Lagos, Nigeria on July 26, 2014" align="left" title="A pharmacist searches for drugs in a pharmacy in Lagos, Nigeria on July 26, 2014" border="0" /></a>By authorising the use of experimental drugs in the fight against Ebola, the World Health Organisation is allowing a shortcut in drug-vetting procedures that usually takes years. After preliminary tests on animals or cells in petri dishes, a laboratory must obtain permission from health authorities for clinical trials on humans to assess a drug's safety and effectiveness. -- Phase one is generally carried out with a sample of fewer than 100 volunteers to assess drug tolerance and check for side-effects. -- Phase two evaluates the effectiveness of the drug and the optimal dosage, usually on a sample of several hundred people.</p><br clear="all"/>

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