Beta-Blocker
Propranolol
Also known as: Off-label cognitive use
A beta-blocker sometimes used off-label to reduce performance anxiety and stress response.
KÖGN Health grades Propranolol as A (Strong evidence) and rates it 4.0 out of 5.
Last reviewed · June 2026
Primary effects
- Reduced anxiety
- Improved performance under stress
How it works
Blocks adrenergic activity, reducing physical symptoms of anxiety under pressure.
Overview
Propranolol is primarily a cardiovascular medication, but it is sometimes used off-label for performance anxiety, particularly in high-pressure situations such as public speaking. It does not enhance cognition directly but can indirectly improve performance by reducing physiological stress responses. It should be used cautiously and under appropriate medical guidance.
The evidence
Propranolol is a prescription beta-blocker with two cognitive angles. It blunts the physical symptoms of performance anxiety — a long-standing off-label use by performers and public speakers — and it can dampen the emotional charge of memories during formation and recall, which is being studied for PTSD with mixed and often non-replicating results. It does not sharpen thinking, and can mildly impair some emotional memory.
Safety & side effects
It lowers heart rate and blood pressure, which can cause fatigue, dizziness, and cold hands and feet. Stopping it abruptly can be dangerous.
Who should avoid it
Prescription-only — not for self-supplementation. It is unsafe in asthma (it can trigger bronchospasm), in several heart conditions, and with already-low blood pressure, and it can mask the warning signs of low blood sugar in people on diabetes treatment. Use only under a prescriber.
References
Related ingredients
Graded entries that target the same cognitive goals.
Categories
Draft — the dose, safety and evidence notes on this entry were prepared from the published literature and are pending editorial and clinical review.
Educational information, not medical advice. The evidence grade is KÖGN’s editorial assessment of published research, not a health claim. Speak to a qualified clinician before changing what you take.