Patient Leaflet Updated 11-Jun-2026 | Ranbaxy (UK) Limited a Sun Pharmaceutical Company
Lenalidomide 2.5mg, 5 mg, 7.5 mg, 10 mg, 15 mg, 20mg, 25 mg hard capsules
Lenalidomide 2.5 mg hard capsules
Lenalidomide 5 mg hard capsules
Lenalidomide 7.5 mg hard capsules
Lenalidomide 10 mg hard capsules
Lenalidomide 15 mg hard capsules
Lenalidomide 20 mg hard capsules
Lenalidomide 25 mg hard capsules
lenalidomide
1. What Lenalidomide is and what it is used for
2. What you need to know before you take Lenalidomide
3. How to take Lenalidomide
4. Possible side effects
5. How to store Lenalidomide
6. Contents of the pack and other information
Lenalidomide contains the active substance ‘lenalidomide’. This medicine belongs to a group of medicines which affect how your immune system works.
Lenalidomide is used in adults for:
Multiple myeloma
Multiple myeloma is a type of cancer which affects a certain kind of white blood cell, called the plasma cell. These cells collect in the bone marrow and divide, becoming out of control. This can damage the bones and kidneys.
Multiple myeloma generally cannot be cured. However, the signs and symptoms can be greatly reduced or disappear for a period of time. This is called a ‘response’.
Newly diagnosed multiple myeloma – in patients who have had a bone marrow transplant
Lenalidomide is used on its own as a maintenance therapy after patients have recovered enough following a bone marrow transplant.
Newly diagnosed multiple myeloma – in patients who cannot have a bone marrow transplant
Lenalidomide is taken with other medicines. These may include:
You will take these other medicines at the start of treatment and then continue to take Lenalidomide on its own.
If you are aged 75 years or older or have moderate to severe kidney problems - your doctor will check you carefully before starting treatment.
Multiple myeloma – in patients who have had treatment before
Lenalidomide is taken together with an anti-inflammatory medicine called ‘dexamethasone’.
Lenalidomide can stop the signs and symptoms of multiple myeloma getting worse. It has also been shown to delay multiple myeloma from coming back following treatment.
Myelodysplastic syndromes (MDS)
MDS are a collection of many different blood and bone marrow diseases. The blood cells become abnormal and do not function properly. Patients can experience a variety of signs and symptoms including a low red blood cell count (anaemia), the need for a blood transfusion, and be at risk of infection.
Lenalidomide is used alone to treat adult patients who have been diagnosed with MDS, when all of the following apply:
Lenalidomide can increase the number of healthy red blood cells that the body produces by reducing the number of abnormal cells:
Mantle cell lymphoma (MCL)
MCL is a cancer of part of the immune system (the lymph tissue). It affects a type of white blood cell called ‘B-lymphocytes’ or B-cells. MCL is a disease where B-cells grow in an uncontrolled way and build up in the lymph tissue, bone marrow or blood.
Lenalidomide is used alone to treat adult patients who have previously been treated with other medicines.
Follicular lymphoma (FL)
FL is a slow growing cancer that affects the B-lymphocytes. These are a type of white blood cells that help your body fight infection. When you have FL, too many of these B-lymphocytes may collect in your blood, bone marrow, lymph nodes and spleen.
Lenalidomide is taken together with another medicine called ‘rituximab’ for the treatment of adult patients with previously treated follicular lymphoma.
Lenalidomide works by affecting the body’s immune system and directly attacking the cancer. It works in a number of different ways:
You must read the package leaflet of all medicinal products to be taken in combination with Lenalidomide before starting treatment with Lenalidomide.
If any of these apply to you, do not take Lenalidomide. Talk to your doctor if you are not sure.
Talk to your doctor, pharmacist or nurse before taking Lenalidomide if:
If any of the above apply to you, tell your doctor, pharmacist or nurse before starting treatment.
At any time during or after your treatment, tell your doctor or nurse immediately if you:
Before and during the treatment with Lenalidomide you will have regular blood tests. This is because Lenalidomide may cause a fall in the blood cells that help fight infection (white blood cells) and help the blood to clot (platelets).
Your doctor will ask you to have a blood test:
You may be evaluated for signs of cardiopulmonary problems before and during the treatment with lenalidomide.
For patients with MDS taking Lenalidomide
If you have MDS, you may be more likely to get a more advanced condition called acute myeloid leukaemia (AML). In addition, it is not known how Lenalidomide affects the chances of you getting AML. Your doctor may therefore do tests to check for signs which may better predict the likelihood of you getting AML during your treatment with Lenalidomide.
For patients with MCL taking Lenalidomide
Your doctor will ask you to have a blood test:
For patients with FL taking Lenalidomide
Your doctor will ask you to have a blood test:
Your doctor may check if you have a high total amount of tumour throughout the body, including your bone marrow. This could lead to a condition where the tumours break down and cause unusual levels of chemicals in the blood which can lead to kidney failure (this condition is called ‘Tumour Lysis Syndrome’).
Your doctor may check you for changes to your skin such as red spots or rashes.
Your doctor may adjust your dose of Lenalidomide or stop your treatment based on the results of your blood tests and on your general condition. If you are newly diagnosed, your doctor may also assess your treatment based on your age and other conditions you already have.
You should not donate blood during treatment and for at least 7 days after the end of treatment.
Lenalidomide is not recommended for use in children and adolescents under 18 years.
If you are aged 75 years or older or have moderate to severe kidney problems - your doctor will check you carefully before starting treatment.
Tell your doctor or nurse if you are taking or have recently taken any other medicines. This is because Lenalidomide can affect the way some other medicines work. Also, some other medicines can affect the way Lenalidomide works.
In particular, tell your doctor or nurse if you are taking any of the following medicines:
Pregnancy
For women taking Lenalidomide
For men taking Lenalidomide
Breast-feeding
You must not breast-feed when taking Lenalidomide, as it is not known if Lenalidomide passes into breast milk.
Contraception
For women taking Lenalidomide
Before starting the treatment, ask your doctor if you are able to become pregnant, even if you think this is unlikely.
If you are able to become pregnant
AND
For men taking Lenalidomide
Lenalidomide passes into human semen. If your female partner is pregnant or able to become pregnant, and she does not use effective methods of contraception, you must use condoms during treatment and for at least 7 days after the end of treatment, even if you have had a vasectomy. You should not donate semen or sperm during treatment and for at least 7 days after the end of treatment.
Do not drive or operate machines if you feel dizzy, tired, sleepy, have vertigo or blurred vision after taking Lenalidomide.
Lenalidomide contains lactose. If you have been told by your doctor that you have intolerance to some sugars, contact your doctor before taking this medicine.
Lenalidomide must be given to you by healthcare professionals with experience in treating multiple myeloma, MDS, MCL or FL.
Always take Lenalidomide exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure.
If you are taking Lenalidomide in combination with other medicines, you should refer to the package leaflets for these medicines for further information on their use and effects.
Lenalidomide is taken on certain days over 3 weeks (21 days).
OR
Lenalidomide is taken on certain days over 4 weeks (28 days).
Before you start treatment, your doctor will tell you:
To remove the capsule from the blister:
Lenalidomide is taken in treatment cycles, each cycle lasting 21 or 28 days (see above ‘Treatment cycle’). You should continue the cycles of treatment until your doctor tells you to stop.
If you take more Lenalidomide than was prescribed, tell your doctor immediately.
If you forget to take Lenalidomide at your regular time and:
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
Like all medicines, Lenalidomide can cause side effects, although not everybody gets them.
Tell your doctor straight away if you notice any of the following serious side effects:
Lenalidomide may reduce the number of white blood cells that fight infection and also the blood cells which help the blood to clot (platelets) which may lead to bleeding disorders such as nosebleeds and bruising.
Lenalidomide may also cause blood clots in the veins (thrombosis).
It is important to note that a small number of patients may develop additional types of cancer, and it is possible that this risk may be increased with Lenalidomide treatment. Therefore your doctor should carefully evaluate the benefit and risk when you are prescribed Lenalidomide.
Very common side effects (may affect more than 1 in 10 people):
Common side effects (may affect up to 1 in 10 people):
Uncommon side effects (may affect up to 1 in 100 people):
Not known side effects (frequency cannot be estimated from the available data):
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.
Lenalidomide 2.5, 10, 20 mg hard capsules:
Lenalidomide 5 and 25 mg hard capsules:
Lenalidomide 7.5 mg hard capsules:
Lenalidomide 15 mg hard capsules:
Lenalidomide 2.5 mg hard capsules are hard gelatin capsules of about 14mm length with blue green opaque cap and white opaque body imprinted with “RL” on cap and “78” on body containing white to off white granular powder.
Lenalidomide 5 mg hard capsules are hard gelatin capsules of about 18mm length with white opaque cap and white opaque body imprinted with “RL” on cap and “79” on body containing white to off white granular powder.
Lenalidomide 7.5 mg hard capsules are hard gelatin capsules of about 18mm length with pale yellow opaque cap and white opaque body imprinted with “RL” on cap and “86” on body containing white to off white granular powder.
Lenalidomide 10 mg hard capsules are hard gelatin capsules of about 21mm length with blue green opaque cap and pale yellow opaque body imprinted with “RL” on cap and “80” on body containing white to off white granular powder.
Lenalidomide 15 mg hard capsules are hard gelatin capsules of about 21mm length powder blue opaque cap and white opaque body imprinted with “RL” on cap and “81” on body containing white to off white granular powder.
Lenalidomide 20 mg hard capsules are hard gelatin capsules of about 21mm length blue green opaque cap and powder blue opaque body imprinted with “RL” on cap and “82” containing white to off white granular powder.
Lenalidomide 25 mg hard capsules are hard gelatin capsules of about 21mm length white opaque cap and white opaque body imprinted with “RL” on cap and “83” on body containing white to off white granular powder.
Lenalidomide 2.5 mg/ 5 mg/ 7.5 mg/ 10 mg/ 15 mg/ 20 mg/ 25 mg hard capsules are packed in cartons containing 7, 14, 21, 28 or 42 capsules.
Lenalidomide 2.5 mg/ 5 mg/ 7.5 mg/ 10 mg/ 15 mg/ 20 mg/ 25 mg hard capsules are packed in cartons containing 7 x 1, 14 x 1, 21 x 1, 28 x 1 or 42 x 1 capsules.
Not all pack sizes may be available.
This leaflet was last revised in June 2026.
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