When people look for "instant" relief for acute anxiety or a panic attack, doctors often consider Benzodiazepines (like Xanax, Ativan, or Valium), as they are "fast-acting" and can begin to reduce physical symptoms within 20 to 30 minutes. However, these are strictly "short-term" solutions and carry a high risk of dependence and sedation. In 2026, many medical professionals also recommend Beta-Blockers (like Propranolol) as a non-addictive, "instant" way to manage the physical symptoms of performance anxiety, such as a racing heart or shaky hands, without affecting cognitive clarity. For those seeking non-prescription options, L-Theanine or high-quality CBD are often cited as grounded "near-instant" calming agents, though their effectiveness varies by individual. It is vital to remember that there is no "magic pill" for anxiety; the "best" medicine is always the one prescribed by your doctor as part of a broader treatment plan that includes therapy and lifestyle changes. Always consult a healthcare professional before taking any new medication, especially in high-stress situations like international travel.