Amchafibrin (Tranexamic Acid) in Spain: Uses and Risks

Amchafibrin is the Spanish brand of tranexamic acid. It helps blood clots hold, so bleeding slows. In Spain it is used for heavy periods, for bleeding after prostate or bladder surgery, for dental work in people with haemophilia, and for hereditary angioedema. It needs a prescription. It is not a painkiller and it does not stop a period.

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 Amchafibrin used for?

Your body breaks down blood clots once a wound has healed. Tranexamic acid slows that breakdown. The clot stays in place for longer, so less blood is lost. The Spanish leaflet lists four uses:

• Heavy, long periods (menorragia). This is the use most people meet in general practice.
• Surgery on the prostate or bladder, to limit bleeding.
• Tooth removal in people with haemophilia, a bleeding disorder.
• Hereditary angioedema, a rare condition that causes swelling of the mouth and throat.

There are tablets and a solution for injection. The injection is given in hospital. In the UK, doctors also use tranexamic acid for some nosebleeds, and as a mouthwash after dental work. Those uses are not listed in the Spanish Amchafibrin leaflet, so they are a doctor's decision.

How does it help with heavy periods?

A period counts as heavy when it gets in the way of daily life. You may soak through pads or tampons quickly, pass large clots or need to change at night. Tranexamic acid cuts the amount of blood lost. It does not change your cycle and it is not a contraceptive. The leaflet says to start it only once the period has begun. Your doctor or the leaflet sets how much to take.

Heavy periods can lower your iron and leave you tired and short of breath. Our page on anaemia and low iron explains the checks a doctor may suggest.

Is Amchafibrin the same as Cyklokapron?

Yes, the medicine is the same: tranexamic acid. Only the brand name changes from country to country.

Name	Where	How you get it
Amchafibrin	Spain	Prescription
Tranexamic acid (generic)	Spain	Prescription
Cyklokapron	UK	Prescription
Evana Heavy Period Relief	UK	Pharmacy, adults 18 and over, heavy periods only
Lysteda	US	Prescription

If you bring tablets from home, show the box to the doctor or pharmacist. The active ingredient on the label is what matters.

Do you need a prescription for Amchafibrin in Spain?

Yes. Every Amchafibrin product, and every generic tranexamic acid, is listed as needing a prescription on the AEMPS CIMA database. This differs from the UK, where adults can buy some tablets for heavy periods at a pharmacy. In Spain the pharmacist will ask for a prescription. Our guide to prescription status in Spain lists other common medicines.

Who should not take tranexamic acid?

The leaflet says not to take it if you:

• Have had a blood clot in a vein or an artery, such as a deep vein thrombosis (DVT) or a clot in the lungs.
• Have a clotting disorder called consumptive coagulopathy.
• Have ever had seizures.
• Are allergic to tranexamic acid.

Tell the doctor first if you:

• Take the combined pill or another hormonal contraceptive. Together they carry a small extra risk of clots. Our contraception page covers your options.
• Have kidney problems, or blood in your urine.
• Are pregnant, trying for a baby or breastfeeding.
• Have irregular periods, or bleed between periods or after sex. The cause should be checked first.

What Amchafibrin does not treat

• Period pain. It reduces blood loss, not cramps.
• The cause of heavy periods. Fibroids, polyps or thyroid problems need their own checks.
• Bleeding in pregnancy. Any bleeding when pregnant needs a doctor, not a tablet at home.
• Bleeding after the menopause. This always needs a doctor to look into it.

Side effects and warning signs

Most people have no side effects. Nausea, vomiting or loose stools can happen and are usually mild. Rare effects include changes in eyesight, especially colour vision, and itchy skin. Stop and see a doctor if your eyesight changes. See a doctor urgently if one leg becomes painful, swollen, red or warm. That can be a clot.

Call 112 if you have chest pain, sudden breathlessness or cough up blood. Also call 112 for swelling of the lips, tongue or throat, a seizure, or very heavy bleeding with dizziness or fainting.

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 how long your periods last, how heavy they are and how they affect your day.
• Ask about past clots, seizures, kidney problems and the medicines you take.
• Check for signs that need blood tests, a scan or an in-person exam.
• Explain whether tranexamic acid, a hormonal option or another step fits you.

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: Amchafibrin package leaflet
• NHS: Tranexamic acid
• MedlinePlus: Tranexamic acid
• NHS: Heavy periods

Related guides

• Contraception care online
• Anaemia and low iron care online
• Which medicines need a prescription in Spain?
• Urgent Care video visit