Iran has developed chemical weapons based on synthetic opioids such as fentanyl, warns a US expert, powerful agents that could incapacitate soldiers or civilians when added to grenades or artillery.

Universities affiliated with Iran's armed forces have been working on militarizing fentanyl, the low-cost synthetic opioid often used to treat severe pain, by researching fentanyl's analogues ...

Our fortnightly column also highlights attacks on the LGBT community in Russia, fentanyl production in Mexico, and a New York ...

Background: Fentanyl, a short-acting synthetic opioid, has a pharmacokinetic profile suited to fast relief of brief episodic pain. Objective: To characterize the pharmacokinetic-pharmacodynamic ...