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Mustargen Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Mustargen (mechlorethamine HCl) is used to treat several types of cancer, such as Hodgkin's Disease, lymphosarcoma, chronic myelocytic or chronic lymphocytic leukemia, lung cancer and mycosis fungoides. It is also used to treat certain other blood disorders (polycythemia vera) and is sometimes injected into body spaces, such as the chest, abdomen or the sack containing the heart, to stop the accumulation of fluids caused by cancer. It is a cancer (antineoplastic) medication. Common side effects include nausea/vomiting (may be severe), loss of appetite, diarrhea, headache, confusion, drowsiness, metallic taste in the mouth, or weakness.
The dosage of Mustargen varies with the clinical situation, the therapeutic response and the magnitude of hematologic depression. A total dose of 0.4 mg/kg of ideal dry body weight for each course usually is given either as a single dose or in divided doses of 0.1 to 0.2 mg/kg per day. Mustargen may interact with "live" vaccines. Tell your doctor all medications and supplements you use. Mustargen is not recommended for use during pregnancy. It may harm a fetus. If you become pregnant or think you may be pregnant, tell your doctor. Males and females using this drug should use birth control (e.g., birth control pills, condoms) during treatment; consult your doctor. It is unknown if this drug passes into breast milk. Because of the possible risk to the infant, breastfeeding while using this drug is not recommended.
Our Mustargen (mechlorethamine HCl) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Mustargen in Detail - Patient Information: Side Effects
If you experience any of the following serious side effects, seek emergency medical attention or contact your doctor immediately:
- an allergic reaction (shortness of breath; closing of your throat; difficulty breathing; swelling of your lips, face, or tongue; or hives);
- blood in the urine;
- black or tarry stools;
- signs of infection such as fever; chills, or sore throat;
- joint pain and stiffness similar to gout (high levels of uric acid in the blood);
- jaundice (yellowing of the skin or eyes);or
- unusual bleeding or bruising.
Other less serious side effects may be more likely to occur. Talk to your doctor if you experience:
- nausea, vomiting, or decreased appetite;
- mouth sores;
- a sensation of spinning or dizziness (vertigo);
- temporary hair loss;
- a ringing in the ears or decreased ability to hear; or
In some cases, second malignancies have been reported to occur during and following treatment with mechlorethamine. Talk to your doctor about the risks and benefits of this medication.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at 1-800-FDA-1088.
Read the entire detailed patient monograph for Mustargen (Mechlorethamine HCl) »
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Mustargen Overview - Patient Information: Side Effects
Nausea, vomiting, loss of appetite, diarrhea, headache, confusion, drowsiness, metallic taste in the mouth, or weakness may occur. Nausea and vomiting can be severe. In some cases, your doctor may prescribe medication to prevent or relieve nausea and vomiting. Eating several small meals, not eating before treatment, or limiting activity may help lessen some of these effects. If these effects persist or worsen, tell your doctor or pharmacist promptly.
Severe nausea, vomiting, and diarrhea may infrequently result in a loss of too much body water (dehydration). Contact your doctor promptly if you notice any symptoms of dehydration such as unusual decreased urination, unusual dry mouth/increased thirst, lack of tears, dizziness/lightheadedness, or pale/wrinkled skin.
Temporary hair loss may occur. Normal hair growth should return after treatment has ended.
Many people using this medication have serious side effects. However, your doctor has prescribed this drug because he or she has judged that the benefit to you is greater than the risk of side effects. Careful monitoring by your doctor may decrease your risk.
Tell your doctor right away if you have any serious side effects, including: hearing changes (decreased hearing, ringing in ears), menstrual changes (e.g., stopped periods), numbness/tingling, unusual bleeding/bruising (e.g., small red spots on the skin, black/bloody stools, bloody urine, vomit that looks like coffee grounds), urination changes (e.g., decreased/painful urination).
This medication can lower the body's ability to fight an infection. Tell your doctor promptly if you develop any signs of an infection such as fever, chills, or persistent sore throat.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Mustargen (Mechlorethamine HCl)»
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Mustargen FDA Prescribing Information: Side Effects
Clinical use of MUSTARGEN usually is accompanied by toxic manifestations.
Thrombosis and thrombophlebitis may result from direct contact of the drug with the intima of the injected vein. Avoid high concentration and prolonged contact with the drug, especially in cases of elevated pressure in the antebrachial vein (e.g., in mediastinal tumor compression from severe vena cava syndrome).
Hypersensitivity reactions, including anaphylaxis, have been reported. Nausea, vomiting and depression of formed elements in the circulating blood are dose-limiting side effects and usually occur with the use of full doses of MUSTARGEN. Jaundice, alopecia, vertigo, tinnitus and diminished hearing may occur infrequently. Rarely, hemolytic anemia associated with such diseases as the lymphomas and chronic lymphocytic leukemia may be precipitated by treatment with alkylating agents including MUSTARGEN. Also, various chromosomal abnormalities have been reported in association with nitrogen mustard therapy.
MUSTARGEN is given preferably at night in case sedation for side effects is required. Nausea and vomiting usually occur 1 to 3 hours after use of the drug. Emesis may disappear in the first 8 hours, but nausea may persist for 24 hours. Nausea and vomiting may be so severe as to precipitate vascular accidents in patients with a hemorrhagic tendency. Premedication with antiemetics, in addition to sedatives, may help control severe nausea and vomiting. Anorexia, weakness and diarrhea may also occur.
The usual course of MUSTARGEN (total dose of 0.4 mg/kg either given as a single intravenous dose or divided into two or four daily doses of 0.2 or 0.1 mg/kg, respectively) generally produces a lymphocytopenia within 24 hours after the first injection; significant granulocytopenia occurs within 6 to 8 days and lasts for 10 days to 3 weeks. Agranulocytosis appears to be relatively infrequent and recovery from leukopenia in most cases is complete within two weeks of the maximum reduction. Thrombocytopenia is variable but the time course of the appearance and recovery from reduced platelet counts generally parallels the sequence of granulocyte levels. In some cases severe thrombocytopenia may lead to bleeding from the gums and gastrointestinal tract, petechiae, and small subcutaneous hemorrhages; these symptoms appear to be transient and in most cases disappear with return to a normal platelet count. However, a severe and even uncontrollable depression of the hematopoietic system occasionally may follow the usual dose of MUSTARGEN, particularly in patients with widespread disease and debility and in patients previously treated with other antineoplastic agents or X-ray. Persistent pancytopenia has been reported. In rare instances, hemorrhagic complications may be due to hyperheparinemia. Erythrocyte and hemoglobin levels may decline during the first 2 weeks after therapy but rarely significantly. Depression of the hematopoietic system may be found up to 50 days or more after starting therapy.
Occasionally, a maculopapular skin eruption occurs, but this may be idiosyncratic and does not necessarily recur with subsequent courses of the drug. Erythema multiforme has been observed. Herpes zoster, a common complicating infection in patients with lymphomas, may first appear after therapy is instituted and on occasion may be precipitated by treatment. Further treatment should be discontinued during the acute phase of this illness to avoid progression to generalized herpes zoster.
Since the gonads are susceptible to MUSTARGEN, treatment may be followed by delayed catamenia, oligomenorrhea, or temporary or permanent amenorrhea. Impaired spermatogenesis, azoospermia, and total germinal aplasia have been reported in male patients treated with alkylating agents, especially in combination with other drugs. In some instances spermatogenesis may return in patients in remission, but this may occur only several years after intensive chemotherapy has been discontinued. Patients should be warned of the potential risk to their reproductive capacity.
To report SUSPECTED ADVERSE REACTIONS, contact Recordati Rare Diseases Inc. at 1-888-575-8344 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Read the entire FDA prescribing information for Mustargen (Mechlorethamine HCl) »
Additional Mustargen Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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