Think the drugs your GP gives you are safe?

We are all swallowing an increasing number of pills, not just to treat disease but to cut the risk of getting a disease in the first place. Even in a time of austerity the NHS is spending nearly £12 billion on drugs and the total keeps rising.
People believe the drugs are effective and safe because they have all been properly tested in clinical trials. But this is a dangerous delusion.
Failures in our system for testing drugs mean not only are drugs often no better than a placebo, but, at worst, they end up damaging the health of tens of thousands of Britons every year. Pharmaceutical companies spend billions conducting trials to come up with evidence for the benefits of drugs, but they have a number of ways of making small benefits look impressive.

Source  - Daily Mail