New research published in The Lancet details an association between high cannabis potency — or concentration of tetrahydrocannabinol (THC) — and an increased risk of psychosis and cannabis use ...

Massachusetts regulators will take action if THC potency is not within 75% to 125% of the value printed on the product label.

From the onset of marijuana prohibition, criminalization advocates sought to advance their agenda — an unduly influence to the public — by sensationalizing the supposed strength of cannabis. In the ...

But potency (mg/mL) is only part of the larger strength equals efficacy equation. Research is still ongoing, but most experts agree that CBD on its own is going to be less effective overall than a ...

Just 20 years ago levels of tetrahydracannabinol, the compound in cannabis known as THC that makes you high, was between 2% and 4% in most marijuana. By 2013, common strains contained 25% THC, with ...

Potency is a required measurement to determine the amount of active ingredient contained in a preclinical dose formulation. Assessing potency ensures that the test system receives the appropriate ...

Ten years ago, the average gram of meth available in the U.S. was 39 percent pure. Today, it is being sold in a nearly pure state, manufactured in Mexican “superlabs” and smuggled across the border to ...

A study published in Molecular Psychiatry is the first to suggest that the use of high-potency cannabis leaves a distinct mark on DNA, providing valuable insights into the biological impact of ...

The high-potency cannabis that is now widely available may raise the risk of both psychosis and addiction, a report published Monday in The Lancet Psychiatry finds. Subscribe to read this story ...