How much propranolol should I take for public speaking?

Typical doses for performance anxiety range from 10-40mg, taken 30-60 minutes before the event. Most people start with 10-20mg. Your doctor will advise on the appropriate dose based on your health status. Never take propranolol without medical supervision.

Does propranolol affect mental clarity?

Unlike sedative medications, propranolol does not cause drowsiness or affect cognitive function at typical doses for performance anxiety. You should feel mentally sharp while physical symptoms (shaking, racing heart) are reduced.

Can I take propranolol before every presentation?

While propranolol is generally safe for occasional use, using it for every presentation can become a psychological crutch. It prevents your brain from learning that presenting is safe, potentially maintaining anxiety long-term. It's best used for high-stakes situations while building confidence through practice.

Back to Guides

Medication 8 min read

Propranolol for Public Speaking

The most commonly used beta blocker for performance anxiety. Here's what it does, how to use it, and why it's not a long-term solution.

By Jonathan Prescott

MBA, Bayes Business School · Founder, Cavefish · June 2026

Medical disclaimer: This guide is for information only. Propranolol is a prescription medication. Do not take it without consulting a doctor who can assess your health status and contraindications.

What is propranolol?

Propranolol (brand name Inderal) is a beta-blocker — a medication that blocks the effects of adrenaline on your heart and blood vessels. It was originally developed for heart conditions but has been used off-label for performance anxiety since the 1970s.

How it works for presentations

When you're anxious, your body releases adrenaline. This causes:

Racing heart (palpitations)
Trembling hands and voice
Sweating
Flushing

Propranolol blocks the adrenaline receptors, so these physical symptoms don't manifest — even though you're still releasing adrenaline. Your heart stays calm, your hands steady, your voice stable.

Important distinction: Propranolol blocks physical symptoms but doesn't reduce the mental experience of anxiety. You may still feel nervous — you just won't look or sound nervous.

Dosage and timing

Typical dosages for performance anxiety:

Starting dose: 10-20mg
Common range: 10-40mg
Timing: 30-60 minutes before the event
Duration: Effects last 3-4 hours

Your doctor may recommend a test dose before your first presentation to ensure you tolerate it well and find the right amount.

Who should NOT take propranolol

Propranolol is contraindicated for people with:

Asthma or reactive airway disease
Low blood pressure (hypotension)
Certain heart conditions (bradycardia, heart block)
Diabetes (can mask hypoglycaemia symptoms)
Pregnancy

This is why medical supervision is essential — a doctor needs to assess your individual health status.

Side effects

Common side effects (usually mild):

Cold hands and feet
Fatigue
Dizziness
Nausea

At typical low doses for performance anxiety, most people experience no noticeable side effects beyond the intended calming effect.

The long-term problem

Here's the catch: propranolol can become a safety behaviour — a crutch that prevents genuine confidence from developing.

Anxiety decreases through exposure. When you present successfully, your brain learns that presenting isn't dangerous. But if you always use propranolol, your brain attributes the success to the medication, not to you. The anxiety maintains itself.

Research suggests that using propranolol occasionally for very high-stakes situations is fine. Using it for every presentation prevents the natural desensitisation process.

When propranolol makes sense

A one-off high-stakes presentation (board meeting, TEDx, wedding speech)
As a bridge while building confidence through practice
When physical symptoms are so severe they prevent any progress

When practice makes more sense

Regular workplace presentations
Building long-term confidence
When you want to reduce anxiety, not just mask symptoms

Beta blocker: A class of medication that blocks adrenaline receptors. Used for heart conditions and, off-label, for performance anxiety.
Off-label use: Using a medication for a purpose other than what it was originally approved for. Propranolol is approved for heart conditions; performance anxiety use is off-label but well-established.
Safety behaviour: A coping mechanism that provides short-term relief but prevents long-term learning that the situation is actually safe.

Build real confidence through practice

EchoPitch gives you private AI-powered practice — the exposure that actually builds confidence, without the social threat.

Try EchoPitch Free →