Patients with major depressive disorder experienced the greatest improvement with placebo treatment in randomized clinical trials, while patients with schizophrenia benefited the least.

New research presented at the 2025 European Congress of Psychiatry reveals that the use of cannabidiol (CBD) cannabis extract ...

For decades, the placebo effect — the phenomenon where a patient’s condition improves after receiving an inert treatment, often a sugar pill, because they believe it to be real medication ...

In some types of birth control pills, the last week of the pack usually consists of inactive or placebo pills. These pills do not contain any hormones. There are many different types of birth ...

However, the first-ever randomized clinical trial investigating the pharmacological effects of psychedelics found that microdosing LSD is as effective as a placebo in improving ADHD symptoms.