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Verzenios® 100 mg film-coated tablets – patient leaflet, side effects, dosage

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

Medicine status: Prescription only (POM) Details

Medicine strength:
100 mg
Contains active substance:
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Patient leaflet - Verzenios 100 mg film-coated tablets

1. What Verzenios is and what it is used for

Verzenios is a cancer medicine containing the active substance abemaciclib.

Abemaciclib blocks the effects of proteins called cyclin-dependent kinase 4 and 6. These proteins are abnormally active in some cancer cells and make them grow out of control. Blocking the action of these proteins can slow down growth of cancer cells, shrink the tumour and delay progression of the cancer.

Verzenios is used to treat certain types of breast cancer (hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-)) which have: - spread to the lymph nodes of the armpit, with no detectable spread to other parts of the

body, been surgically removed, and have certain characteristics that increase the risk of the cancer returning. Treatment is given in combination with hormonal therapy, such as aromatase inhibitors or tamoxifen, to prevent the cancer from coming back after surgery (treatment after surgery is called adjuvant therapy)

  • spread beyond the original tumour and/or to other organs. It is given together with

    hormonal therapies, such as aromatase inhibitors or fulvestrant.

2. What you need to know before you take Verzenios

Do not take Verzenios:

  • if you are allergic to abemaciclib or any of the other ingredients of this medicine

    (listed in section 6).

Warnings and precautions

Verzenios may:

  • reduce the number of your white blood cells, and you may be at greater risk of getting an

    infection. Serious infections such as lung infections can be life-threatening; - cause blood clots in the veins;

  • cause severe or life-threatening inflammation of the lungs;
  • affect the way your liver works;
  • cause diarrhoea. At the first sign of diarrhoea, start treatment with antidiarrhoeal agents,

    such as loperamide. Drink plenty of fluids;

  • cause blood clots in the arteries in patients also receiving hormone therapies.

See section 4 “Possible side effects”, and talk to your doctor if you have any symptoms.

What your doctor will check before and during your treatment

You will have regular blood tests before and during treatment to check whether Verzenios affects your blood (white blood cells, red blood cells, platelets) or the concentration in your blood of enzymes from your liver.

Children and adolescents

Verzenios is not to be used in children and adolescents under 18 years of age.

Other medicines and Verzenios

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.

In particular, tell you doctor or pharmacist before taking Verzenios if you are taking the following:

  • medicines that may increase the concentration of Verzenios in the blood:

    o Clarithromycin (antibiotic used to treat bacterial infections)

    o Itraconazole, ketoconazole, posaconazole, voriconazole (used to treat fungal

    infections)

    o Lopinavir/ritonavir (used to treat HIV/AIDS)

    o Digoxin (used to treat heart disorders)

    o Dabigatran etexilate (used to reduce the risk of stroke and blood clots)

    • medicines that may reduce the effectiveness of Verzenios:

      o Carbamazepine (anti-epileptic used to treat seizures or fits)

      o Rifampicin, used to treat tuberculosis (TB)

      o Phenytoin (used to treat seizures)

      o St. John’s wort (a herbal product used to treat mild depression and anxiety)

Verzenios with food and drink

Avoid grapefruit or grapefruit juice while you are taking the medicine as they may increase the concentration of Verzenios in the blood.

Pregnancy, breast-feeding and fertility

If you are pregnant, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

Pregnancy

You should not use Verzenios if you are pregnant.

You should avoid becoming pregnant while taking Verzenios.

If you are able to have children, you should use adequate contraceptive methods (e.g., double –barrier contraception such as condom and diaphragm) during therapy and for at least 3 weeks after completing therapy. Discuss contraception with your doctor if there is any possibility that you may become pregnant.

You must tell your doctor if you become pregnant.

Breast-feeding

You should not breast-feed while taking Verzenios. It is not known if Verzenios passes into breast milk.

Fertility

Verzenios may decrease fertility in men. Talk to your doctor to seek advice about fertility prior to treatment.

Driving and using machines

Tiredness and dizziness are very common side effects. If you feel unusually tired or dizzy, take special care when driving or using machines.

Verzenios contains lactose

If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicine.

Verzenios contains sodium

This medicine contains less than 1 mmol sodium (23 mg) per tablet, that is to say essentially ‘sodium-free’.

3. How to take Verzenios

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

When given together with endocrine therapy to treat your breast cancer, the recommended dose of Verzenios is 150 mg taken by mouth twice daily.

If you get certain side effects while you are taking Verzenios your doctor may lower your dose or stop treatment temporarily or permanently.

When and how to take Verzenios

Take Verzenios twice daily, at about the same time every day, preferably in the morning and evening, so there is enough medicine in your body all the time.

You can take the tablets either with or without food, just avoid grapefruit and grapefruit juice (see section 2 “Verzenios with food and drink”).

Swallow the tablet whole with a glass of water. Do not chew, crush or split the tablets before swallowing.

How long to take Verzenios

Take Verzenios continuously for as long as your doctor tells you to. If you take Verzenios for early breast cancer treatment, you should take it for up to 2 years.

If you take more Verzenios than you should

If you take too many tablets, or if someone else takes your medicine, contact a doctor or hospital for advice. Show the Verzenios carton and this leaflet. Medical treatment may be necessary.

If you miss a dose of Verzenios

If you vomit after taking the dose or forget a dose, take your next dose at your usual time. Do not take a double dose to make up for the forgotten or vomited dose.

If you stop taking Verzenios

Do not stop taking Verzenios unless your doctor tells you to.

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

4. Possible side effects

Like all medicines, this medicine can cause side-effects, although not everybody gets them. Contact your doctor immediately for any of the following:

  • Symptoms such as chills or fever. These could be a sign of low white blood cell counts

    (which may affect more than 1 in 10 people) and should be treated immediately. If you have cough, fever and difficulty breathing or chest pain, this could be a sign of lung infection. Serious or life-threatening infections are uncommon (may affect up to 1 in 100 people). - Painful swollen leg, chest pain, shortness of breath, rapid breathing or rapid heart rate as these can be signs of blood clots in the vein (which may affect up to 1 in 10 people). - Diarrhoea (which may affect more than 1 in 10 people).

Refer to section 2 for more information on any of the possible effects listed above.

Other side effects with Verzenios may include:

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

  • Infections
  • Reduction in white blood cells, red blood cells, and blood platelets
  • Nausea (feeling sick), vomiting
  • Inflammation or sore mouth
  • Decreased appetite
  • Headache
  • Alteration in sense of taste
  • Hair loss
  • Tiredness
  • Dizziness
  • Itching
  • Rash
  • Abnormalities in liver blood tests

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

  • Watering eyes
  • Muscular weakness
  • Dry skin
  • Inflammation of the lungs which causes breathlessness, cough and raised temperature
  • Indigestion or upset stomach
  • Nail disorders such as breaking or splitting of nails

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

  • Low levels of white blood cells with fever
  • Perception of flashes of light or floaters in your vision
  • Keratitis (inflammation of the Cornea)

Rare side effects (may affect up to 1 in 1000 people)

  • A skin reaction that causes red spots or patches on the skin that may look like a target or

    “bullseye” with a dark red centre surrounded by paler red rings (erythema multiforme).

Reporting of side effects

If you get any side effects, talk to your doctor or pharmacist.

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 Verzenios

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 blister and carton after “EXP”. The expiry date refers to the last day of that month.

This medicine does not require any special storage conditions.

Do not use this medicine if you notice that the pack is damaged or shows signs of tampering.

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

If your medicine shows any signs of discolouration or deterioration, you should seek the advice of your pharmacist.

6. Contents of the pack and other information

What Verzenios contains

  • The active substance is abemaciclib. Verzenios film-coated tablets come in different strengths:

    • Verzenios 50 mg film-coated tablet: each tablet contains

      50 mg abemaciclib.

    • Verzenios 100 mg film-coated tablet: each tablet contains

      100 mg abemaciclib.

    • Verzenios 150 mg film-coated tablet: each tablet contains

      150 mg abemaciclib.

The other ingredients in this medicine are:

  • Tablet core: colloidal hydrated silica, croscarmellose sodium, lactose monohydrate, microcrystalline cellulose, sodium stearyl fumarate (see section 2 under ‘Verzenios contains lactose’ and ‘Verzenios contains sodium’ for further information).
  • Film-coating: titanium dioxide (E171), talc (E553b), polyvinyl alcohol (E1203), macrogol 3350 (E1521), iron oxide yellow (E172) [50 mg and 150 mg tablets only], iron oxide red (E172) [50 mg tablets only].

What Verzenios looks like and contents of the pack

  • Verzenios 50 mg film-coated tablets are beige, oval tablets debossed with “Lilly” on one side and “50” on the other.
  • Verzenios 100 mg film-coated tablets are white, oval tablets debossed with “Lilly” on one side and “100” on the other.
  • Verzenios 150 mg film-coated tablets are yellow, oval tablets debossed with “Lilly” on one side and “150” on the other.

Verzenios is available in calendar blister packs of 28, 56 film-coated tablets.

Not all the pack sizes may be marketed.

Manufacturer

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

Procured from within the EU and repackaged for the PL Holder: Abacus Medicine Ltd., Abbey House, 282 Farnborough Road, Farnborough, GU14 7NA, United Kingdom

Verzenios 50 mg film-coated tablets:

PL 45763/0878

Verzenios 100 mg film-coated tablets:

PL 45763/0880

Verzenios 150 mg film-coated tablets:

PL 45763/0876

POM

For any information about this medicine, please contact the local representative of the Product Licence Holder:

Abacus Medicine Ltd.

tel: +44(0)2036301244,

email: MedInfo@abacusmedicine.co.uk or

drugsafetyuk@abacusmedicine.co.uk

Verzenios® is a registered trademark of Eli Lilly and Company

This leaflet was last revised on 26.05.2026.

Blind or partially sighted?

Is this leaflet hard to see or read?

Call 02036301310 or write to info@abacusmedicine.com to obtain the leaflet in a format suitable for you.

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PLPI 45763/0880

Last revision stated in the text: 26 May 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 Verzenios 100 mg film-coated tablets

Prescription needed? Yes, prescription-only medicine (POM)
Active substance Abemaciclib
Strength 100 mg
Pharmaceutical form Oral tablet
Verzenios 100 mg film-coated tablets
White, oval tablet of 6.6 x 12.0 mm, debossed with “Lilly” on one side and “100” on the other.
How is it taken Oral
Excipients Croscarmellose sodium, Lactose monohydrate, Microcrystalline cellulose, Colloidal hydrated silica, Sodium stearyl fumarate, Verzenios 50 mg film-coated tablets, Polyvinyl alcohol (E1203), Titanium dioxide (E171), Macrogol (E1521), Talc (E553b), Iron oxide yellow (E172), Iron oxide red (E172), Verzenios 100 mg film-coated tablets, Verzenios 150 mg film-coated tablets
Pack sizes 28 tablet, 56 tablet
Is it available? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life 3 years.
Storage This medicinal product does not require any special storage conditions.
Drug group (ATC) Antineoplastic agents, protein kinases inhibitors
  1. L Antineoplastic and immunomodulating agents
    1. L01 Antineoplastic agents
      1. L01E Protein kinase inhibitors, antineoplastic and immunomodulating agents
        1. L01EF Cyclin-dependent kinase (CDK) inhibitors
          1. L01EF03 abemaciclib
Marketing authorisation PLGB 14895/0264 (first authorised 27 September 2018), PLPI 45763/0880
Marketing authorisation holder Eli Lilly Nederland B.V., Orteliuslaan 1000, 3528 BD Utrecht, The Netherlands.
Codes GTIN 5014602401306, 5014602401313 · BNF 08010500

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.