Logan Steele
Imbruvica (ibrutinib) is a brand-name drug used to treat certain cancers and immune system conditions. It is known to cause several side effects, some of which are temporary and last a few days to weeks. However, if the side effects persist, become bothersome, or severe, it is recommended to consult a doctor or pharmacist. One of the frequently reported side effects of Imbruvica is muscle pain, which can manifest as muscle cramps or spasms. This side effect has been widely discussed in online forums, with patients sharing their experiences of muscle cramps in different parts of the body, such as the feet, calves, and thighs. While some individuals have found relief through supplements like magnesium and potassium, others have had to modify their physical activities due to the severity of the cramps.
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What You'll Learn
Tumour lysis syndrome
TLS is characterised by metabolic disturbances, including hyperkalemia (high potassium), hyperphosphatemia (high phosphate), hypocalcemia (low calcium), and hyperuricemia (high uric acid). These disturbances can result in severe complications, including acute kidney injury, cardiac arrhythmias, neurological changes, and even death. TLS is commonly observed in patients undergoing treatment for hematologic malignancies, particularly following the initiation of chemotherapy.
The timely recognition and management of TLS are essential to reducing patient morbidity. Before treatment, healthcare providers will assess the risk of developing TLS based on a patient's clinical history. If a patient is at risk, interventions such as aggressive hydration, the use of hypouricemic agents, and close monitoring of metabolic parameters can be implemented to prevent or mitigate end-organ injury and failure.
TLS can cause a range of symptoms, including kidney failure, abnormal heart rhythm, seizures, and sometimes death. It is a potentially life-threatening condition that requires immediate treatment.
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Diarrhea, nausea and vomiting
Imbruvica (ibrutinib) is a targeted therapy used to treat chronic lymphocytic leukaemia (CLL), small lymphocytic lymphoma (SLL), Waldenström’s macroglobulinemia (WM), and chronic graft versus host disease (cGVHD). It is an oral, once-daily medicine available as a capsule, tablet, or oral suspension.
Diarrhea, nausea, and vomiting are common side effects of Imbruvica. Diarrhea is a particularly frequent side effect, and patients are advised to drink plenty of fluids during treatment to help reduce the risk of dehydration. If you experience diarrhea that does not go away, be sure to tell your healthcare provider.
Nausea and vomiting are also recognised side effects of Imbruvica. If you are sick with vomiting, you may get dehydrated, and you should call your doctor.
In addition to the above, Imbruvica may cause other serious side effects. Call your doctor at once if you experience any of the following:
- Heart rhythm disorders: dizziness, chest pain, shortness of breath, fast or irregular heart rate, feeling light-headed
- High blood pressure: severe headache, blurred vision, pounding in your neck or ears
- Low blood cell counts: fever, chills, tiredness, mouth sores, skin sores, easy bruising, unusual bleeding, pale skin, cold hands and feet, feeling light-headed or short of breath
- Kidney problems: swelling, urinating less, feeling tired or short of breath
- Liver problems: stomach pain or discomfort, dark-coloured urine, or yellow skin and eyes
- Tumour cell breakdown (Tumor Lysis Syndrome): tiredness, weakness, muscle cramps, nausea, vomiting, diarrhea, fast or slow heart rate, tingling in your hands and feet or around your mouth
It is important to take Imbruvica exactly as your doctor instructs. Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Taking Imbruvica with certain other medicines may affect how it works and can cause side effects.
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Heart rhythm disorders
Imbruvica (ibrutinib) is used to treat chronic lymphocytic leukemia (CLL), small lymphocytic lymphoma (SLL), Waldenström’s macroglobulinemia (WM), and chronic graft versus host disease (cGVHD).
Imbruvica may cause serious side effects, including heart rhythm disorders. The risk of heart rhythm disorders is higher in patients who already have heart problems, high blood pressure, or diabetes. Patients with a history of atrial fibrillation (AF) are also at an increased risk of experiencing AF while taking Imbruvica. In patients with CLL, male gender, older age, valvular heart disease, and hypertension at the time of diagnosis have been identified as independent risk factors for AF.
Symptoms of heart rhythm disorders include:
- Dizziness
- Chest pain
- Shortness of breath
- Fast or irregular heart rate
- Feeling light-headed
If you experience any of these symptoms, contact your healthcare provider. Your heart function will be checked before and during treatment with Imbruvica. Your healthcare provider may conduct tests to check your heart and may change your Imbruvica dose.
In rare cases, Imbruvica has been associated with serious and fatal cardiac arrhythmias or cardiac failure. Patients with significant cardiac co-morbidities may be at greater risk for developing these events, including sudden fatal cardiac events.
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Infections
Imbruvica affects your immune system and can increase your risk of developing infections. Serious bacterial, viral, or fungal infections have been reported with Imbruvica; 21% were Grade 3 or higher.
Progressive multifocal leukoencephalopathy (PML) is a brain infection caused by a virus (polyomavirus JC) that can lead to disability or death. Tell your doctor if you have problems with speech, thought, vision, or muscle movement. These symptoms can deteriorate quickly. Tell your doctor if you have a fever, chills, cough, mouth sores, or other signs of infection.
In addition, Imbruvica can temporarily lower the number of white blood cells in your blood, increasing the chance of getting an infection.
Imbruvica is also associated with an increased risk of cardiac arrhythmias and cardiac failure, especially in people who have an infection, an increased risk for heart disease, or have had heart rhythm problems in the past.
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Muscle pain
Imbruvica (ibrutinib) is a brand-name drug that treats certain cancers and immune system conditions. It is approved by the Food and Drug Administration (FDA) to treat small lymphocytic lymphoma (SLL), chronic lymphocytic leukemia (CLL), and Waldenstrom macroglobulinemia (WM). It is also used to treat chronic graft versus host disease (cGVHD).
Like other drugs, Imbruvica can cause side effects, some of which are more common than others. These side effects may be temporary, lasting a few days to weeks. However, if the side effects bother you or become severe, it is important to talk to your doctor or pharmacist.
Some patients have reported that taking a magnesium supplement or consuming magnesium-rich foods can help alleviate muscle cramps. Potassium ER 20 meq (=1500mg) is also said to be effective in relieving cramps and spasms within 10 minutes. It is important to consult your doctor before taking any supplements or making significant dietary changes.
It is worth noting that Imbruvica may cause other serious side effects, and it is recommended to seek medical help or contact your doctor if you experience any of the following symptoms:
- Heart rhythm disorders, such as dizziness, chest pain, shortness of breath, fast or irregular heart rate, or feeling lightheaded.
- High blood pressure, which may be asymptomatic but can include symptoms such as severe headaches, blurred vision, or pounding in your neck or ears.
- Low blood cell counts, including fever, chills, tiredness, mouth sores, skin sores, easy bruising, unusual bleeding, pale skin, cold hands and feet, feeling lightheaded, or shortness of breath.
- Kidney problems, such as swelling, decreased urination, feeling tired, or shortness of breath.
- Liver problems, including stomach pain or discomfort, dark-colored urine, or jaundice (yellow skin and eyes).
- Signs of tumor cell breakdown, such as tiredness, weakness, muscle cramps, nausea, vomiting, diarrhea, fast or slow heart rate, or tingling in your hands, feet, or around your mouth.
- Serious eye symptoms, including sudden vision loss, blurred vision, tunnel vision, eye pain or swelling, or seeing halos around lights.
- Serious infections, such as progressive multifocal leukoencephalopathy (PML) and Pneumocystis jirovecii pneumonia (PJP), which may require immediate medical attention.
- Skin and subcutaneous tissue disorders, such as Stevens-Johnson Syndrome (SJS), onychoclasis, panniculitis, neutrophilic dermatoses, and cutaneous vasculitis.
- Hepatobiliary disorders, including hepatic failure, hepatic cirrhosis, and drug-induced liver injury.
- Fatal and serious cardiac arrhythmias and cardiac failure, which have occurred in a small percentage of patients taking Imbruvica.
- Allergic reactions, although this side effect was not reported in clinical trials.
It is important to note that this list may not include all possible serious side effects, and patients are advised to refer to Imbruvica's prescribing information for more details. Additionally, patients should always follow their doctor's instructions when taking Imbruvica and inform their healthcare provider about any other medications or supplements they are taking to avoid potential interactions.
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Frequently asked questions
Yes, Imbruvica can cause muscle pain and cramps. It is one of the drug's common side effects.
If you experience muscle cramps or any other side effects, you should consult your doctor or pharmacist.
Some people have found that taking a magnesium supplement and eating magnesium-rich foods help with the cramps. Potassium ER 20 meq is also said to relieve muscle cramps and spasms in 10 minutes.
