Chlorambucil is taken orally in tablet form. The exact dosage and frequency of doses will depend on the medical condition being treated and your healthcare provider’s instructions.
- Take with a full glass of water.
- Do not crush or chew the tablets—swallow them whole.
- Follow your healthcare provider’s instructions regarding how often to take the medication and for how long.
Chlorambucil is often given in cycles, meaning you may take it for a period of time followed by a break to allow your body to recover. You should never take more than the prescribed amount, as this can lead to serious side effects.
Chlorambucil is an alkylating agent that works by attaching an alkyl group to the DNA in cells. This damage prevents cancer cells from dividing and multiplying, which slows or stops the growth of tumors. Since cancer cells divide more quickly than normal cells, they are more susceptible to damage from chlorambucil.
While chlorambucil works effectively on cancer cells, it can also affect normal, healthy cells in the body. This is why it can lead to side effects, including damage to the bone marrow (which produces blood cells) and the immune system.
Like all chemotherapy drugs, Chlorambucil can cause side effects. Some of the most common side effects include:
- Bone Marrow Suppression: This can lead to a decrease in red blood cells (causing fatigue and weakness), white blood cells (increasing the risk of infections), and platelets (leading to bleeding or bruising).
- Nausea and Vomiting: Many patients experience nausea or vomiting during treatment.
- Hair Loss: Some people may experience thinning or loss of hair, although this is usually temporary.
- Mouth Sores: Chlorambucil can cause painful sores in the mouth or throat.
- Liver Toxicity: In rare cases, it may affect liver function, which can lead to jaundice or other complications.
- Infections: Since it suppresses the immune system, Chlorambucil increases the risk of infections.
Serious side effects may include:
- Severe allergic reactions (rash, itching, swelling)
- Unusual bleeding or bruising
- Yellowing of the skin or eyes (jaundice)
- Signs of a lung infection, such as coughing, fever, or shortness of breath
Seek immediate medical attention if you experience any of these serious symptoms.
Before starting Chlorambucil, it’s important to discuss your medical history with your doctor, especially if you have:
- A history of blood disorders, such as low white blood cells or low platelets.
- Liver or kidney disease.
- Pregnancy or breastfeeding: Chlorambucil can cause harm to an unborn baby, so it should not be used during pregnancy unless absolutely necessary. It is also excreted in breast milk, so breastfeeding is generally not recommended.
- Infections: Chlorambucil can suppress the immune system, increasing the risk of infections.
It is essential to have regular blood tests to monitor your blood counts while using this drug.
Chlorambucil can interact with other medications, which can either increase or decrease its effectiveness, or exacerbate side effects. Some notable drug interactions include:
- Other Chemotherapy Medications: Combining Chlorambucil with other chemotherapy drugs may increase the risk of bone marrow suppression.
- Vaccines: Since Chlorambucil suppresses the immune system, live vaccines may be less effective, and some vaccines may be dangerous to take during treatment.
- Blood Thinners: Chlorambucil may interact with anticoagulant medications, such as warfarin, and increase the risk of bleeding.
- Allopurinol: Used to treat gout, this medication may increase the effects of chlorambucil, potentially leading to increased side effects.
Always inform your healthcare provider about any medications you’re currently taking before starting Chlorambucil.
Chlorambucil dosage depends on the condition being treated, the patient’s overall health, and their response to the drug. Typically, doses are given in cycles, with the patient taking the medication for a period followed by a rest period to allow for recovery.
For leukemia or lymphoma, the dose will usually start at 0.1 to 0.2 mg per kilogram of body weight per day. The dosage may be adjusted based on blood cell counts and other factors.
For autoimmune diseases, the dosage is typically lower and based on the severity of the disease.
Chlorambucil is a prescription medication and should only be used under the supervision of a healthcare professional. Your doctor will carefully consider your specific condition and medical history before prescribing Chlorambucil. Regular follow-up visits and blood tests are necessary to monitor for any potential side effects.