What drugs work immediately? An overview of rapid-onset medications
•
4 min read
The fastest way for a drug to reach the brain is often by smoking or intravenous (IV) injection, with effects sometimes felt within seconds. Understanding **what drugs work immediately** is crucial in emergency situations, from reversing an opioid overdose with naloxone to treating anaphylaxis with an epinephrine auto-injector. These powerful, fast-acting medications rely on specific delivery routes to bypass the digestive system for near-instant therapeutic effects.