Propranolol (Inderal): Performance Anxiety, Akathisia, Tremor — Uses, Dosing, Side Effects

What It's Used For

In psychiatry, propranolol is mostly a “body symptoms” medication. It doesn’t directly treat the core thoughts of anxiety — it dampens the adrenaline response so your hands stop shaking and your heart stops trying to escape your chest.

Primary Indications

Performance anxiety (off-label): Situational anxiety with prominent physical symptoms (tremor, palpitations, sweating, voice shakiness)Antipsychotic-induced akathisia (off-label): Restlessness, pacing, can’t-sit-still feeling after starting or increasing an antipsychoticMedication-induced tremor (off-label): Tremor related to psychiatric meds, especially lithium

Off-Label Uses

Situational tremor control when symptoms spike during specific eventsAdrenergic symptom control during medication side effect episodes when clinically appropriate

How Fast It Works

For psychiatry uses, timing matters. Propranolol is usually chosen because you can predict when you’ll need it (like a presentation) or because you want steady symptom control (like akathisia or medication tremor).

30–60 minutes

Many people notice performance-anxiety benefit in this window (especially physical symptoms)

1–2 hours

Oral beta-blockade effect is typically established; this is often when the “steady” effect feels most noticeable

6–12 hours

Typical effect window for immediate-release tablets

~24 hours

Extended-release forms can provide all-day coverage (not usually necessary for performance-only use)

IV onset is minutes, but IV use is a medical setting workflow — not a psychiatry outpatient anxiety strategy

Safe Discontinuation

If you’ve been taking propranolol daily (akathisia or tremor schedules), don’t stop abruptly. A gradual taper helps prevent rebound symptoms like fast heart rate and blood pressure spikes. If you only use it rarely (performance PRN), tapering usually isn’t necessary.

Key Points

Daily use: taper down over at least several days to 2 weeks, depending on dose, duration, and cardiac risk profile.
Higher-risk patients (heart disease, angina history): taper more cautiously and involve cardiology if needed.
Rebound can show up within 24–48 hours after abrupt stopping in chronic users (fast heart rate, elevated BP, shakiness).
If propranolol was being used for akathisia, plan for symptom monitoring during taper and make sure the antipsychotic side effect plan is addressed (dose change, switch, or additional targeted meds).

Dosing Information

Adult Dosing

performance anxiety prn: 10 to 20 mg PO once, taken 30 to 60 minutes before the anxiety-provoking situation; if not enough, increase by 10 to 20 mg before a future situation; maximum 60 mg per event

akathisia initial: 10 mg PO BID

akathisia titration: If needed, adjust based on response and tolerability at intervals of ≥1 week

akathisia max: 120 mg/day PO (divided doses)

lithium tremor initial: 10 mg PO TID to QID

lithium tremor titration: Titrate based on response and tolerability; aim for the lowest effective dose that reduces tremor while keeping heart rate and blood pressure safe

lithium tremor max: 80 mg/day PO (divided doses)

Simple Explanation

For performance anxiety, propranolol is usually a low-dose one-time pill before an event. For akathisia or medication tremor, it’s usually scheduled dosing and adjusted gradually. The goal is symptom relief without making your heart rate or blood pressure drop too much.

Available Formulations

Immediate-release tablets (generic): 10 mg, 20 mg, 40 mg, 60 mg, 80 mg
Extended-release capsules (generic and brand): 60 mg, 80 mg, 120 mg, 160 mg (Inderal LA, Inderal XL, InnoPran XL; strengths vary by product)
Oral solution (generic): 20 mg/5 mL (4 mg/mL) and 40 mg/5 mL (8 mg/mL)
Oral solution (Hemangeol): 4.28 mg/mL (primarily for infantile hemangioma use)
IV solution (generic): 1 mg/mL

Critical Safety Information

This medication can slow your heart rate and lower blood pressure. If you have asthma or significant breathing issues, it can trigger bronchospasm.

→If you’re using this for performance anxiety: do a trial dose on a normal day first — you don’t want your first test run to be on stage.
→If you feel wheezing, chest tightness, or new breathing trouble, stop and get urgent medical help — especially if you have asthma history.
→Stand up slowly if you’re prone to dizziness. Hydrate. Don’t mix with other meds that also lower heart rate unless your clinician is actively managing that combination.
→If you have diabetes or you’re prone to low blood sugar, be extra cautious — propranolol can hide your usual warning signs.
→If you’ve been taking it daily, taper — don’t quit suddenly.

Side Effects

Most common issues are fatigue, dizziness/lightheadedness, cold hands/feet, sleep changes (insomnia or vivid dreams), and slower heart rate. Side effects are more likely if your baseline blood pressure or heart rate runs low.

Common Things People Notice

Tiredness or low energy
Dizziness, especially when standing up fast
Slow heart rate
Cold hands or feet
Sleep changes (insomnia, vivid dreams, nightmares)
GI upset (nausea, diarrhea, constipation)
Sexual side effects (can happen, but not everyone)

Common Side Effects

Common

Fatigue / low energy— Some people feel a “weighted blanket” body sensation — calmer, but also less pep. This is one reason performance dosing is often kept low and tested in advance.

Common

Dizziness / lightheadedness— Usually related to blood pressure lowering. If you’re feeling faint or getting tunnel vision when you stand, the dose may be too high or you may not be a good match for this medication.

Variable

Sleep disturbance / vivid dreams— Propranolol can affect sleep quality in some people. If dreams get intense or insomnia ramps up, dose timing changes or switching strategies may help.

Dose-dependent

Bradycardia (slow heart rate)— If your heart rate drops too low (or you feel weak, faint, or short of breath), this needs medical attention and dose adjustment.

Serious side effects

Bronchospasm (especially in asthma/COPD): wheezing, shortness of breath, chest tightness. MEDICAL EMERGENCY if severe.
Severe bradycardia, heart block, or fainting episodes: urgent evaluation needed.
Worsening heart failure symptoms: swelling, shortness of breath, rapid weight gain, fatigue out of proportion.
Severe hypoglycemia risk and masked warning signs (especially in infants/children, and in adults with diabetes on glucose-lowering therapy).
Withdrawal reactions after abrupt stoppage in chronic users: rebound tachycardia, hypertension, chest pain, arrhythmias.

Critical Drug Interactions

Most dangerous interactions are the ones that stack heart-rate-lowering effects or worsen breathing/glucose risk.

With: Other AV node / heart-rate lowering meds (verapamil, diltiazem, digoxin, ivabradine; some antiarrhythmics)

Risk: Excessive bradycardia, hypotension, heart block, fainting.

Action: Use only with clinician oversight. Monitor heart rate, blood pressure, and symptoms closely, especially after dose changes.

With: Bronchodilators and beta-agonists (albuterol, formoterol, etc.)

Risk: Propranolol can blunt the effect of rescue inhalers and may worsen bronchospasm.

Action: Avoid if you have asthma. If you have COPD or reactive airway symptoms, discuss safer alternatives (often a beta-1 selective blocker if a beta-blocker is needed at all).

With: Diabetes medications (insulin, sulfonylureas and others that can cause hypoglycemia)

Risk: Propranolol can prolong hypoglycemia and hide warning signs like tremor and palpitations.

Action: Monitor glucose carefully, especially during dose changes or illness/poor intake. Educate that sweating may be the main visible warning sign.

With: Alcohol

Risk: Alcohol can unpredictably raise or lower propranolol levels and can worsen dizziness and blood pressure drops.

Action: Use caution. If you’re using propranolol for performance, avoid experimenting with alcohol the same day.

With: Smoking

Risk: Cigarette smoking can lower propranolol levels and reduce effect in some people.

Action: If you change smoking status (start/stop), your dose response may change too.

Pregnancy, Breastfeeding, Special Groups

Propranolol can be used in pregnancy when clinically necessary, but it’s not usually the first-choice beta-blocker for pregnancy hypertension. Late-pregnancy exposure can affect newborn heart rate and glucose. In breastfeeding, it’s generally considered compatible at usual doses, but infants should be monitored.

👶Pregnancy

Crosses the placenta. Third-trimester exposure may increase risk of neonatal bradycardia, hypoglycemia, hypotension, and respiratory depression. If used during pregnancy, clinicians typically monitor fetal growth and monitor the newborn for at least 48 hours after delivery for bradycardia, hypoglycemia, and respiratory effects. For psychiatric performance anxiety, clinicians often try non-med options first in pregnancy unless symptoms are significantly impairing and benefits outweigh risks.

🤱Breastfeeding

Propranolol and inactive metabolites appear in breast milk. At usual doses it is often considered compatible with breastfeeding, but monitor the infant for bradycardia, cyanosis, and hypoglycemia, especially in very young infants or if maternal doses are higher.

👴Older Adults (65+)

Use caution and consider lower starting doses. Older adults are more prone to bradycardia, hypotension, dizziness, and falls. If used, titrate slowly and monitor closely, especially with other heart-rate-lowering medications.

🔬Liver Impairment

Use caution in hepatic impairment; accumulation can be significant with cirrhosis. For many non-variceal indications, immediate-release is preferred for flexible titration. In moderate to severe cirrhosis (Child-Pugh B/C), a common approach is ≤50% of the usual indication-specific dose no more frequently than twice daily, with slower adjustments (every 3 to 5 days or longer) based on response and tolerability.

💧Kidney Impairment

No dose change is usually needed for kidney problems or dialysis, but use caution when starting it with advanced kidney disease, because side effects may be more likely.

Clinical Monitoring

Heart rate and blood pressure: baseline and after dose changes; watch for symptomatic bradycardia or hypotension (dizziness, fainting).
Respiratory symptoms: wheezing, shortness of breath, chest tightness — especially in anyone with asthma/COPD history.
Mental alertness and fatigue: sedation-like tiredness can show up, especially early or at higher doses.
Sleep effects: insomnia, vivid dreams, nightmares — track whether timing changes help.
Akathisia tracking (if relevant): symptom rating over time (restlessness, pacing, inner agitation) and safety monitoring for severe distress.
Tremor tracking (if relevant): functional impact (writing, eating, phone use) and whether benefit is worth side effects.
Blood glucose awareness in diabetes: propranolol can mask hypoglycemia symptoms; educate on sweating as a key warning sign.
Medication review for interactions: especially other heart-rate-lowering agents and any regimen changes.

How Well It Works

Best-case target symptom

Physical adrenergic symptoms

vs Thought-based anxiety symptoms

Propranolol is usually most effective when the problem is the adrenaline surge — tremor, pounding heart, sweating, shaky voice — especially in performance situations. If the main issue is nonstop worry, rumination, dread, or panic spirals, propranolol tends to be less satisfying as a standalone treatment.

Mechanism of Action

Propranolol is a nonselective beta-blocker. It blocks beta-1 and beta-2 adrenergic receptors, which lowers heart rate and reduces the physical effects of adrenaline. In psychiatry, that translates to fewer outward anxiety symptoms like tremor, palpitations, and shaky voice — the “fight-or-flight” part gets quieter.

Place in Treatment Algorithm

Propranolol is a symptom-targeting tool. For performance anxiety, it’s often used PRN when physical symptoms are the main problem and you need predictable timing. For akathisia, it’s typically used as part of a broader plan that also addresses the causative antipsychotic (dose reduction, switch, or additional treatments). For medication-induced tremor (like lithium tremor), it can reduce tremor without destabilizing mood when changing the primary medication isn’t feasible.

Questions people ask

Does propranolol treat anxiety?

It treats the physical side of anxiety — the adrenaline symptoms. Think: shaky hands, pounding heart, sweating, voice tremor. It usually doesn’t remove anxious thoughts the way therapy, SSRIs, or other anxiety treatments can.

How do I take propranolol for performance anxiety?

Typical approach is immediate-release 10–20 mg taken 30–60 minutes before the event. If that’s not enough and you tolerate it well, some people increase in 10–20 mg steps on future events, up to 60 mg per event. Always do a trial run on a normal day first.

Will propranolol make me feel sleepy or weird?

It can. The most common “weird” feelings are fatigue, low energy, lightheadedness, and sometimes vivid dreams or sleep disruption. If you feel faint, your dose may be too high — or you may not be a good match for this med.

Can propranolol help the strong inner restlessness (akathisia) some antipsychotics cause?

Yes, sometimes. Propranolol is commonly used as an add-on for this restlessness caused by antipsychotics. But it often needs a bigger plan too – adjusting the antipsychotic (a dose change or switch) is usually part of the solution.

Can propranolol help lithium tremor?

It can reduce lithium-related tremor in many people. Dosing is usually scheduled (not PRN), and the goal is the lowest dose that helps tremor without dropping heart rate or blood pressure too much.

Who should NOT take propranolol?

People with asthma generally should not take propranolol because it can tighten the airways (bronchospasm). It is also not appropriate for certain heart rhythm problems (like significant heart block), a very slow heart rate, shock caused by the heart (cardiogenic shock), or heart failure that is not under control, unless a specialist is directing care.

Can I drink alcohol if I’m taking propranolol?

Use caution. Alcohol can worsen dizziness and blood pressure drops, and it can make propranolol’s effects less predictable. If you’re using propranolol for a performance event, don’t experiment with alcohol that same day.

Do I need to taper propranolol?

If you take it daily, yes — don’t stop abruptly. Tapering helps avoid rebound fast heart rate and blood pressure spikes. If you use it rarely and only PRN for performance anxiety, tapering usually isn’t needed.

How long does propranolol last?

Immediate-release tablets often last about 6–12 hours. Extended-release forms can cover about a full day. For performance anxiety, many people only need the immediate-release effect window around the event.

What It's Used For

Primary Indications

Off-Label Uses

Situational tremor control when symptoms spike during specific eventsAdrenergic symptom control during medication side effect episodes when clinically appropriate

How Fast It Works

30–60 minutes

Many people notice performance-anxiety benefit in this window (especially physical symptoms)

1–2 hours

Oral beta-blockade effect is typically established; this is often when the “steady” effect feels most noticeable

6–12 hours

Typical effect window for immediate-release tablets

~24 hours

Extended-release forms can provide all-day coverage (not usually necessary for performance-only use)

IV onset is minutes, but IV use is a medical setting workflow — not a psychiatry outpatient anxiety strategy

Safe Discontinuation

Key Points

Daily use: taper down over at least several days to 2 weeks, depending on dose, duration, and cardiac risk profile.
Higher-risk patients (heart disease, angina history): taper more cautiously and involve cardiology if needed.
Rebound can show up within 24–48 hours after abrupt stopping in chronic users (fast heart rate, elevated BP, shakiness).
If propranolol was being used for akathisia, plan for symptom monitoring during taper and make sure the antipsychotic side effect plan is addressed (dose change, switch, or additional targeted meds).

Dosing Information

Adult Dosing

performance anxiety prn: 10 to 20 mg PO once, taken 30 to 60 minutes before the anxiety-provoking situation; if not enough, increase by 10 to 20 mg before a future situation; maximum 60 mg per event

akathisia initial: 10 mg PO BID

akathisia titration: If needed, adjust based on response and tolerability at intervals of ≥1 week

akathisia max: 120 mg/day PO (divided doses)

lithium tremor initial: 10 mg PO TID to QID

lithium tremor titration: Titrate based on response and tolerability; aim for the lowest effective dose that reduces tremor while keeping heart rate and blood pressure safe

lithium tremor max: 80 mg/day PO (divided doses)

Simple Explanation

Available Formulations

Immediate-release tablets (generic): 10 mg, 20 mg, 40 mg, 60 mg, 80 mg
Extended-release capsules (generic and brand): 60 mg, 80 mg, 120 mg, 160 mg (Inderal LA, Inderal XL, InnoPran XL; strengths vary by product)
Oral solution (generic): 20 mg/5 mL (4 mg/mL) and 40 mg/5 mL (8 mg/mL)
Oral solution (Hemangeol): 4.28 mg/mL (primarily for infantile hemangioma use)
IV solution (generic): 1 mg/mL

Critical Safety Information

This medication can slow your heart rate and lower blood pressure. If you have asthma or significant breathing issues, it can trigger bronchospasm.

→If you’re using this for performance anxiety: do a trial dose on a normal day first — you don’t want your first test run to be on stage.
→If you feel wheezing, chest tightness, or new breathing trouble, stop and get urgent medical help — especially if you have asthma history.
→Stand up slowly if you’re prone to dizziness. Hydrate. Don’t mix with other meds that also lower heart rate unless your clinician is actively managing that combination.
→If you have diabetes or you’re prone to low blood sugar, be extra cautious — propranolol can hide your usual warning signs.
→If you’ve been taking it daily, taper — don’t quit suddenly.

Side Effects

Common Things People Notice

Tiredness or low energy
Dizziness, especially when standing up fast
Slow heart rate
Cold hands or feet
Sleep changes (insomnia, vivid dreams, nightmares)
GI upset (nausea, diarrhea, constipation)
Sexual side effects (can happen, but not everyone)

Common Side Effects

Common

Fatigue / low energy— Some people feel a “weighted blanket” body sensation — calmer, but also less pep. This is one reason performance dosing is often kept low and tested in advance.

Common

Variable

Sleep disturbance / vivid dreams— Propranolol can affect sleep quality in some people. If dreams get intense or insomnia ramps up, dose timing changes or switching strategies may help.

Dose-dependent

Bradycardia (slow heart rate)— If your heart rate drops too low (or you feel weak, faint, or short of breath), this needs medical attention and dose adjustment.

Serious side effects

Bronchospasm (especially in asthma/COPD): wheezing, shortness of breath, chest tightness. MEDICAL EMERGENCY if severe.
Severe bradycardia, heart block, or fainting episodes: urgent evaluation needed.
Worsening heart failure symptoms: swelling, shortness of breath, rapid weight gain, fatigue out of proportion.
Severe hypoglycemia risk and masked warning signs (especially in infants/children, and in adults with diabetes on glucose-lowering therapy).
Withdrawal reactions after abrupt stoppage in chronic users: rebound tachycardia, hypertension, chest pain, arrhythmias.