Propranolol in Spain (Sumial): Uses and Cautions

Propranolol is a beta-blocker, a medicine that slows the heart and blunts the effects of adrenaline. In Spain it is sold as Sumial and as generic propranolol; in the UK and the US it was long known as Inderal. It is used to prevent migraine, to calm an essential tremor, for several heart conditions and, in selected cases, for the physical symptoms of performance anxiety. It is prescription-only in Spain, and it must never be stopped suddenly.

Dr. Pedro Yelamo Vera is a GP licensed in Spain (Colegiado No. 484814280).

For a medical emergency, call 112 or go to the nearest local emergency department. Do not wait for a video consultation or an online reply.

What is propranolol used for?

• Migraine prevention. Taken every day, it reduces how often attacks come. It is one of the first-choice preventive medicines in European and NICE guidance. It does not stop an attack that has started.
• Essential tremor, the shaking of the hands that runs in families and worsens with stress or caffeine.
• Heart conditions: high blood pressure (though no longer a first choice for that alone), angina, after a heart attack, some fast heart rhythms and hypertrophic cardiomyopathy.
• Overactive thyroid, to control palpitations and tremor while the thyroid treatment takes effect.
• Performance anxiety (stage fright, exams, public speaking): taken before the event, it can reduce the racing heart, shaking voice and trembling hands. It does not reduce worry itself.
• Under specialist care: portal hypertension in liver disease, infantile haemangiomas (a special oral solution) and some other uses.

Sumial, Inderal, propranolol: which name is which?

They are all the same molecule. Sumial is the Spanish brand; most Spanish pharmacies also stock generic propranolol tablets. Inderal is the old brand name in the UK and US; in the UK you now mostly get generic propranolol, including slow-release capsules. If you take propranolol at home, bring the box or a photo of it to any Spanish doctor: the strength and whether it is slow-release matter when a prescription is written here.

Is propranolol prescription-only in Spain?

Yes. Every propranolol product in Spain is a medicamento sujeto a prescripción médica. A pharmacy cannot sell it without a Spanish prescription, including a private electronic one, and a UK or US prescription is not valid here. You can check each presentation on the AEMPS CIMA database.

A doctor who prescribes it checks your pulse, blood pressure, lung history, diabetes and other medicines first. If you already take it for migraine and have run out while in Spain, a GP can review you by video and, where clinically appropriate, continue the treatment. Our migraine page explains what that review covers.

Propranolol for anxiety: what it does and does not do

Propranolol blocks the body's response to adrenaline. That is why it eases the physical side of acute, situational anxiety: the pounding heart, shaky hands and quivering voice before a presentation, an exam or a flight. It does not touch the worry, the dread or the racing thoughts, and it is not a treatment for generalised anxiety disorder, panic disorder or depression on its own. Those are treated with talking therapy and, when needed, antidepressant medicines, with follow-up.

Online, propranolol is sometimes presented as an easy "anxiety pill". It is a heart medicine with real contraindications. A doctor assesses whether it is suitable for you, how often you would use it and whether something else would help more. This practice does not prescribe benzodiazepines or other sedatives online, and it does not treat propranolol as a substitute for them. Our anxiety page describes what a GP can and cannot do for anxiety by video.

Who should not take propranolol?

• Asthma or a history of wheezing or bronchospasm. Propranolol narrows the airways and can trigger a severe attack. People with COPD need specialist advice.
• A slow pulse, certain heart-block rhythms, sick sinus syndrome, very low blood pressure or uncontrolled heart failure.
• Severe peripheral artery disease or Raynaud's that is already bad.
• An untreated phaeochromocytoma (a rare adrenal tumour).
• Diabetes treated with insulin: it can hide the warning signs of low blood sugar, so it is used with care.
• Pregnancy and breastfeeding: it can be used when the benefit is clear, but a doctor must decide and the baby may need monitoring.

Tell the doctor about every other medicine. Combining propranolol with verapamil or diltiazem, other blood-pressure drugs, some migraine or antidepressant medicines, or alcohol can drop the pulse and pressure too far.

Never stop propranolol suddenly

After weeks of regular use the body adapts to the beta-blocker. Stopping overnight can cause a rebound: a fast heart, a surge in blood pressure, worse angina and, in people with heart disease, a heart attack. Migraine and tremor also come back harder. If you want to stop, or you are running out and cannot get more, speak to a doctor: the dose is reduced in steps over a period the doctor sets, depending on how long you have taken it. Occasional use before an event only does not need tapering.

Side effects

Common: tiredness, cold hands and feet, a slow pulse, dizziness on standing, vivid dreams or poor sleep, and sometimes low mood or erectile problems. Less common but important: wheezing, very slow pulse, fainting, worsening of psoriasis, and masking of low blood sugar in diabetes. Many side effects are dose-related and settle after the first weeks.

When to see a doctor, and when to call 112

See a doctor if your pulse is regularly below about 50, you feel faint or dizzy, you start wheezing, your mood drops, or the medicine does not seem to help after a fair trial (migraine prevention takes about two to three months to judge).

Call 112 for severe breathing difficulty or wheeze, chest pain, fainting or collapse, a very slow or irregular heartbeat with confusion, or if someone has taken a large number of tablets: a propranolol overdose is dangerous and needs emergency care.

Talking it through with a doctor by video

Dr. Yelamo is a GP licensed in Spain. He sees adults, children and pregnant patients by video, every day from 07:30 to 20:30 (Spain time). In the visit he will:

• Ask what you take it for, how long, at what strength, and whether it is slow-release.
• Check your blood pressure and pulse readings, and ask about asthma, diabetes, heart problems and other medicines.
• Explain whether continuing, adjusting, switching or stopping in steps is the right plan.
• Tell you when a cardiologist, a neurologist or an in-person exam is needed instead.

He does not promise any test or prescription before the visit. Where clinically appropriate, following a genuine evaluation. Treatment and prescriptions are issued solely at the doctor's discretion based on evidence-based clinical guidelines.

A prescription is never guaranteed: it is issued only where clinically appropriate after a genuine evaluation, as a private electronic prescription under Spanish law. This service is for urgent, non-emergency care. In an emergency, call 112.

See how the Urgent Care video visit works. It lasts 15 minutes and costs €50.

This guide is general information. It does not replace the package leaflet or the advice of your doctor or pharmacist.

Frequently asked questions

Sources

• AEMPS CIMA: Sumial and propranolol leaflets and prescription status
• NHS: Propranolol
• MedlinePlus: Propranolol
• Mayo Clinic: Propranolol (oral route)
• NICE CG150: Headaches in over 12s, diagnosis and management
• MSD Manual: Beta-blockers

Related guides

• Migraine treatment online in Spain
• Migraine treatment in Spain: triptan prescriptions and follow-up
• Bisoprolol in Spain (Emconcor): what to know if you take it
• Anxiety support online
• High blood pressure care online
• Urgent Care video visit