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E Mgality 120 mg - solution for injection Pre-filled pen – patient leaflet, side effects, dosage

Last updated: · Text from the MHRA, as of · About this document

Medicine status: Prescription only (POM) Details

Medicine strength:
120 mg
Contains active substance:
Similar medicines:

Patient leaflet - E Mgality 120 mg - solution for injection Pre-filled pen

1. What Emgality is and what it is used for

Emgality contains galcanezumab, a medicine that stops the activity of a naturally occurring substance in the body called calcitonin gene-related peptide (CGRP). People with migraine may have increased levels of CGRP.

Emgality is used to prevent migraine in adult patients who have at least 4 migraines days per month.

Emgality can reduce the frequency of migraine headache and improve your quality of life. It starts working in about a week.

2. What you need to know before you use Emgality

Do not use Emgality:

  • if you are allergic to galcanezumab or any of the other

    ingredients of this medicine (listed in section 6).

Warnings and precautions

Talk to your doctor, pharmacist or nurse before or during treatment with Emgality if:

  • you have a serious cardiovascular disease. Emgality has

    not been studied in patients with serious cardiovascular diseases.

Look out for allergic reactions

Emgality can potentially cause serious allergic reactions. Serious allergic reactions happen mainly within 1 day after having taken Emgality, but some reactions can be delayed (happen more than 1 day to 4 weeks after having taken Emgality). Some allergic reactions can be prolonged in duration. You must look out for signs of these reactions while you are using Emgality. Stop using Emgality and tell your doctor or seek medical help immediately if you notice any signs of a serious allergic reaction. Such signs are listed under “Serious side effects” in section 4.

Children and adolescents

This medicine should not be given to children and adolescents under 18 years of age because it has not been studied in this age group.

Other medicines and Emgality

Tell your doctor, pharmacist or nurse if you are using, have recently used or might use any other medicines.

Pregnancy and breast-feeding

If you are a woman able to have children, you are advised to avoid becoming pregnant while using Emgality.

If you are pregnant, think you may be pregnant or are planning to have a baby, ask your doctor for advice before taking this medicine. It is preferable to avoid the use of Emgality in pregnancy as the effects of this medicine in pregnant women are not known.

If you are breast-feeding or are planning to breast-feed, talk to your doctor before using this medicine. You and your doctor should decide if you should breast feed and use Emgality.

Driving and using machines

Galcanezumab could have a minor effect on your ability to drive and use machines. Some patients have had vertigo whilst using Emgality.

Emgality contains sodium

This medicine contains less than 1 mmol sodium (23 mg) per 120 mg dose, that is to say essentially “sodium-free”.

3. How to use Emgality

Always use this medicine exactly as your doctor, pharmacist or nurse has told you. Check with your doctor, pharmacist or nurse if you are not sure.

Emgality pre-filled pen is for single use only and contains one dose of Emgality (120 mg).

  • The first time you receive Emgality your doctor or nurse

    will inject two pens (total 240 mg).

  • After the first dose, you will use one pen (120 mg) every

    month.

Your doctor will decide for how long you should use Emgality.

Emgality is given by injection under your skin (subcutaneous injection). You and your doctor or nurse should decide if you can inject Emgality yourself.

It is important not to try to inject yourself until you have been trained by your doctor or nurse. A caregiver may also give you your Emgality injection after proper training.

The pen must not be shaken.

Read the “Instructions for Use” for the pen carefully before using Emgality.

If you use more Emgality than you should

If you have injected more Emgality than you should, e.g. if after the first dose of 240 mg, you have injected it twice in a single month, or if anyone else has accidentally used Emgality, contact your doctor immediately.

If you forget to use Emgality

Do not take a double dose to make up for forgotten injection

If you have forgotten to inject a dose of Emgality, inject the missed dose as soon as possible and then inject the next dose after a month from that date.

If you stop using Emgality

You should not stop using Emgality without speaking to your doctor first.

If you have any further questions on the use of this medicine, ask your doctor, pharmacist or nurse.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

Serious side effects

Allergic reactions with Emgality are usually mild to moderate (such as rash or itching). Serious allergic reactions may occur rarely (may affect up to 1 in 1 000 people) and the signs may include:

  • difficulty breathing or swallowing,
  • low blood pressure, which can cause dizziness or

    light-headedness,

  • swelling of the neck, face, mouth, lips, tongue or throat

    which may develop rapidly,

  • severe itching of the skin, with a red rash or raised

    bumps.

Tell your doctor or get emergency medical help straight away if you notice any of those signs.

Other side effects that have been reported.

Very common side effects (may affect more than 1 in 10 people):

  • Injection site pain
  • Injection site reactions (e.g. red skin, itching, bruising,

    swelling)

Common side effects (may affect up to 1 in 10 people):

  • Vertigo (a feeling of dizziness or “spinning”) - Constipation
  • Itching
  • Rash

    Uncommon side effects (may affect up to 1 in 100 people):

    • Hives (raised itchy areas of skin)

Reporting of side effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme, Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Emgality

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiry date which is stated on the label and on the carton after “EXP.” The expiry date refers to the last day of that month.

Store in a refrigerator (2 °C to 8 °C). Do not freeze.

Store in the original package in order to protect from light.

Emgality may be stored unrefrigerated for a single period up to 7 days when stored at temperatures up to 30 °C. If the pen is stored at a higher temperature or for a longer period it must be discarded.

Do not use this medicine if you notice that the pen is damaged, or the medicine is cloudy or has particles in it.

Do not throw away any medicines via wastewater or household waste. Ask your doctor, nurse or pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Contents of the pack and other information

What Emgality contains

The active substance is galcanezumab. Each pre-filled pen contains 120 mg of galcanezumab in 1 mL solution.

The other ingredients are: L-histidine, L-histidine hydrochloride monohydrate, polysorbate 80, sodium chloride and water for injections.

What Emgality looks like and contents of the pack

Emgality is a solution for injection in a clear glass syringe. Its colour may vary from colourless to slightly yellow.

The syringe is encased in a disposable, single-dose pen. Pack sizes of 1, 2 or 3 pre-filled pens.

Not all pack sizes may be marketed.

Marketing Authorisation Holder

Eli Lilly Nederland B.V., Orteliuslaan 1000, 3528 BD Utrecht, The Netherlands.

Manufacturer:

Lilly, S.A., Avda. de la Industria, 30, 28108 Alcobendas, Madrid Spain.

For any information about this medicine, please contact the local representative of the Marketing Authorisation Holder:

United Kingdom

Eli Lilly and Company Limited

Tel: + 44-(0) 1256 315000

This leaflet was last revised in February 2026.

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PLGB 14895/0242

Last revision stated in the text: February 2026 · MHRA data as of 13 October 2026

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about E Mgality 120 mg - solution for injection Pre-filled pen

Prescription needed? Yes, prescription-only medicine (POM)
Active substance Galcanezumab
Strength 120 mg
Pharmaceutical form Solution for injection
The solution is clear and colourless to slightly yellow.
How is it taken Subcutaneous
Excipients L-histidine, L-histidine hydrochloride monohydrate, Polysorbate 80, Sodium chloride, Water for injections
Pack sizes 1 pre-filled disposable injection
Is it available? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life 2 years
Storage Store in a refrigerator (2 °C – 8 °C).
Do not freeze.
Store in the original package in order to protect from light.
Emgality may be stored unrefrigerated for up to 7 days when stored at temperatures up to 30 °C. If these conditions are exceeded, the pre-filled pen must be discarded.
Drug group (ATC) Analgesics, calcitonin gene-related peptide (CGRP) antagonists
  1. N Nervous system drugs
    1. N02 Analgesics
      1. N02C Antimigraine preparations
        1. N02CD Calcitonin gene-related peptide (CGRP) antagonists
          1. N02CD02 galcanezumab
Marketing authorisation PLGB 14895/0242 (first authorised 1 September 2023)
Marketing authorisation holder Eli Lilly Nederland B.V., Orteliuslaan 1000, 3528 BD Utrecht, The Netherlands
Codes GTIN 5014602101725 · BNF 04070402

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.2.0 of 19 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.