Many young people are being prescribed multiple psychiatric drugs at once — which can be risky Sean Hennessy of the Perelman School of Medicine led a study that explored the risks of prescribing multiple medications at once. maidenc@upenn.edu Thu, 02/12/2026 - 14:27 https://tinyurl.com/yv6zf4m4 February 10, 2026 PhillyVoice