As deaths involving prescription drugs increase, who is supplying demand on the streets?
Allan Urry investigates the sale of counterfeit drugs to GPs, hospitals and chemists.
Dr Mark Porter investigates the phenomenon of resistance to antibiotics.
What can be done to tackle antimicrobial resistance, a massive threat that humans face?
Dr Mark Porter sorts out the good from the bad in terms of health advice online.
The "scandal" that has left up to 1.5 million people addicted to prescription drugs.
Sarah Dunant considers a post-antibiotic world with lessons from the past.
Dr Mark Porter looks at the problem of superbugs in hospitals.