One listed reason for raising prices was "market conditions."

“Oxys, Roxy, Xans, Addy, codeine, perc...Available 24.7 for delivery.”

An Oklahoma judge has found Johnson & Johnson and its subsidiaries helped fuel the state's opioid drug crisis and ordered the consumer products giant to pay $572 million US to help address the problem.

Drug dealers 'moving from street corners to social media'

CVS pharmacies become the latest to withdraw Zantac, a drug being investigated for cancer links.

Most medical research is funded by industry, not public sources. And industry puts pressure on researchers in many ways, from guiding the research question to suppressing unfavourable findings.

Australia's island state is known for its rich history and pristine environment — it also plays a huge part of supplying the raw materials that make the painkillers at the centre of the United States' opioid crisis.

A stunningly successful experiment has the potential to upend the US approach to deviance.

Did technology disrupt the drug game, too?

A new study of more than 283,000 elderly people in the UK has found that long-term use of anticholinergic drugs – including some medications for depression, epilepsy, and Parkinson's disease – is associated with a significant increased risk of dementia

Although "meth-gators" is somewhat extreme, scientists do believe some drugs in the sewer system are affecting wildlife populations.

An implant containing an HIV-prevention drug has been trialled in humans, in a step experts have hailed as an exciting development in curtailing infections. Pre-exposure prophylaxis, or PrEP, with antiretroviral drugs has become a hot topic in recent years, with the drugs shown to substantially reduce the risk of contracting HIV from an HIV-positive partner. PrEP pills are already available through the NHS in Scotland to high-risk individuals, while trials are under way in England.

Antonella Barba, who appeared on "American Idol," pleaded guilty to possession of at least 400 grams of fentanyl with intent to distribute.

Drug makers have mastered gaming the system to beat generic competition, critics say.

FDA approves new 3-drug regimen

When José Capriles arrived in 2008 at the Cueva del Chileno rock shelter, nestled on the western slopes of Bolivia’s Andes, he didn’t know what he would find within.

While other cities are jailing drug users, Seattle has found another way.

We will soon learn if a much-hyped, rapamycin-like drug can boost the immune response by targeting how the body ages.

Nine people who took a cocktail of drugs for a year saw a 1.5-year reduction in their epigenetic age – the largest effect of its kind ever seen

Scientists have raised hopes of a new treatment for multiple sclerosis after animal studies showed a common diabetes drug can repair nerve damage caused by the disease. The effect of the drug was so striking that doctors in Cambridge are now planning a clinical trial of MS patients next year.