Ativan (lorazepam), which is a common benzodiazepine used for anxiety and panic attacks, typically begins to take effect within 20 to 30 minutes after an oral dose is swallowed. Most patients report feeling a "calming" or "relaxing" sensation that reaches its peak effectiveness between 1 and 2 hours after ingestion. The duration of its therapeutic effect is usually about 6 to 8 hours, making it a "short-to-intermediate" acting medication. Factors such as your metabolic rate, whether you have an empty stomach, and the specific dose (usually 0.5mg to 2mg for anxiety) will influence how quickly you feel the relief. For acute panic situations in a clinical setting, an intramuscular (IM) or intravenous (IV) dose can work even faster, often within 1 to 5 minutes. As a grounded and supportive peer, I must remind you that Ativan is a controlled substance with a high potential for dependence and drowsiness; it should only be taken as prescribed by your healthcare provider. If you are using it for "situational" anxiety, such as a fear of flying in 2026, it is a supportive tip to take the dose about 30 minutes before your scheduled boarding time to ensure it is active during the most stressful part of the journey.