Generic name: Mechlorethamine
Other names: Nitrogen
Chemocare.com uses generic names in all descriptions of drugs. Mustargen is the
trade name for Mechlorethamine. Nitrogen Mustard, Mustine, and Mechlorethamine Hydrochloride
are other names for Mustargen. In some cases, health care professionals may use
the trade name Mustargen or other names Nitrogen Mustard, Mustine, and Mechlorethamine
Hydrochloride when referring to the generic drug name Mechlorethamine.
Drug type: Mustargen is an anti-cancer ("antineoplastic" or "cytotoxic")
chemotherapy drug. Mustargen is classified as an "alkylating agent."
(For more detail, see "How this drug works" section below).
What Mustargen is used for:
- As part of combination regimens in treatment of Hodgkin's disease, non-Hodgkin's
- As palliative chemotherapy in lung and breast cancers.
- As a lotion to skin lesions of mycosis fungoides (cutaneous T-cell lymphoma).
Note: If a drug has been approved for one use, physicians
may elect to use this same drug for other problems if they believe it may be helpful.
How Mustargen is given:
- As an injection into the vein (intravenous, IV).
- Mechlorethamine is a vesicant. A vesicant is a chemical that causes extensive
tissue damage and blistering if it escapes from the vein. The nurse or doctor
who gives this drug must be carefully trained. If you notice redness or swelling
at the IV site while you are receiving mechlorethamine, alert your health care professional
- Diluted solution applied to mycosis fungoides skin lesions.
- There is no pill form of mechlorethamine.
- The amount of mechlorethamine that you will receive and route depends on many factors,
including your height and weight, your general health or other health problems,
and the type of cancer or condition being treated. Your doctor will determine
your dose and schedule.
Side effects of Mustargen:
Important things to remember about the side effects of Mustargen:
- Most people do not experience all of the side effects listed.
- Side effects are often predictable in terms of their onset and duration.
- Side effects are almost always reversible and will go away after treatment is complete.
- There are many options to help minimize or prevent side effects.
- There is no relationship between the presence or severity of side effects and the
effectiveness of the medication.
The following side effects are common (occurring in greater than 30%) for
patients taking Mustargen:
- Low blood counts. Your white and red blood cells and platelets may temporarily
decrease. This can put you at increased risk for infection, anemia and/or
Nadir: Meaning low point, nadir is the point in time between
chemotherapy cycles in which you experience low blood counts.
Onset: 4 - 7 days
Nadir: 14 days
Recovery: 21 days
- Nausea and vomiting. Usually occurs within first 3 hours after drug administration.
You will be given anti-nausea medication before receiving drug.
- Hair loss
- Mouth sores
- Darkening of veins used for infusion
- Redness, dryness, irritation with topical use
- Loss of fertility. Meaning, your ability to conceive or father a child may
be affected by mechlorethamine. Discuss this issue with your health care provider.
These side effects are less common side effects (occurring in about 10-29%)
of patients receiving Mustargen:
- Poor appetite
- Taste changes (metallic taste)
- Ringing in the ears (tinnitus) (see hearing problems)
- Abnormal blood tests: increased uric acid levels
Delayed effects of Mustargen:
- There is a slight risk of developing a blood cancer such as leukemia after taking
mechlorethamine. Talk to your doctor about this risk.
Not all side effects are listed above. Some that are rare (occurring in less than
10% of patients) are not listed here. However, you should always inform your
health care provider if you experience any unusual symptoms.
When to contact your doctor or health care provider:
Contact your health care provider immediately, day or night, if you
should experience any of the following symptoms:
- Fever of 100.4° F (38° C) or higher, chills (possible signs of infection)
The following symptoms require medical attention, but are not an emergency.
Contact your health care provider within 24 hours of noticing any of the
- Nausea (interferes with ability to eat and unrelieved with prescribed medication)
- Vomiting (vomiting more than 4-5 times in a 24 hour period)
- Diarrhea (4-6 episodes in a 24-hour period)
- Unusual bleeding or bruising
- Black or tarry stools, or blood in your stools or urine
- Extreme fatigue (unable to carry on self-care activities)
- Mouth sores (painful redness, swelling or ulcers)
- Swelling, redness and/or pain in one leg or arm and not the other.
- Signs of infection such as redness or swelling, pain on swallowing, coughing up
mucous, or painful urination.
Always inform your health care provider if you experience any unusual symptoms.
- Before starting mechlorethamine treatment, make sure you tell your doctor about
any other medications you are taking (including prescription, over-the-counter,
vitamins, herbal remedies, etc.). Do not take aspirin, or products containing
aspirin unless your doctor specifically permits this.
- Do not receive any kind of immunization or vaccination without your doctor's approval
while taking mechlorethamine.
- Inform your health care professional if you are pregnant or may be pregnant prior
to starting this treatment. Pregnancy category D (mechlorethamine may be hazardous
to the fetus. Women who are pregnant or become pregnant must be advised of
the potential hazard to the fetus).
- For both men and women: Do not conceive a child (get pregnant) while taking mechlorethamine.
Barrier methods of contraception, such as condoms, are recommended. Discuss with
your doctor when you may safely become pregnant or conceive a child after therapy.
- Do not breast feed while taking this medication.
- If redness or swelling is noted at the IV infusion site, apply ice and notify your
health care professional immediately.
- Drink at least two to three quarts of fluid every 24 hours, unless you are instructed
- You may be at risk of infection so try to avoid crowds or people with colds and
those not feeling well, and report fever or any other signs of infection immediately
to your health care provider.
- Wash your hands often.
- To help treat/prevent mouth sores, use a soft toothbrush, and rinse three times
a day with 1/2 to 1 teaspoon of baking soda and/or 1/2 to 1 teaspoon of salt mixed
with 8 ounces of water.
- Use an electric razor and a soft toothbrush to minimize bleeding.
- Avoid contact sports or activities that could cause injury.
- To reduce nausea, take anti-nausea medications as prescribed by your doctor, and
eat small, frequent meals.
- Avoid sun exposure. Wear SPF 15 (or higher) sunblock and protective clothing.
- In general, drinking alcoholic beverages should be kept to a minimum or avoided
completely. You should discuss this with your doctor.
- Get plenty of rest.
- Maintain good nutrition.
- If you experience symptoms or side effects, be sure to discuss them with your health
care team. They can prescribe medications and/or offer other suggestions that
are effective in managing such problems.
Monitoring and testing:
You will be checked regularly by your health care professional while you
are taking mechlorethamine, to monitor side effects and check your response to therapy.
Periodic blood work to monitor your complete blood count (CBC) as well as the function
of other organs (such as your kidneys and liver) will also be ordered by your doctor.
How Mustargen works:
Cancerous tumors are characterized by cell division, which is no longer controlled
as it is in normal tissue. "Normal" cells stop dividing when they come
into contact with like cells, a mechanism known as contact inhibition. Cancerous
cells lose this ability. Cancer cells no longer have the normal checks and
balances in place that control and limit cell division. The process of cell
division, whether normal or cancerous cells, is through the cell cycle. The
cell cycle goes from the resting phase, through active growing phases, and then
to mitosis (division).
The ability of chemotherapy to kill cancer cells depends on its ability to halt
cell division. Usually, the drugs work by damaging the RNA or DNA that tells
the cell how to copy itself in division. If the cells are unable to divide,
they die. The faster the cells are dividing, the more likely it is that chemotherapy
will kill the cells, causing the tumor to shrink. They also induce cell suicide
(self-death or apoptosis).
Chemotherapy drugs that affect cells only when they are dividing are called cell-cycle
specific. Chemotherapy drugs that affect cells when they are at rest are called
cell-cycle non-specific. The scheduling of chemotherapy is set based on the
type of cells, rate at which they divide, and the time at which a given drug is
likely to be effective. This is why chemotherapy is typically given in cycles.
Chemotherapy is most effective at killing cells that are rapidly dividing.
Unfortunately, chemotherapy does not know the difference between the cancerous cells
and the normal cells. The "normal" cells will grow back and be healthy but in the
meantime, side effects occur. The "normal" cells most commonly affected by
chemotherapy are the blood cells, the cells in the mouth, stomach and bowel, and
the hair follicles; resulting in low blood counts, mouth sores, nausea, diarrhea,
and/or hair loss. Different drugs may affect different parts of the body.
Mechlorethamine is classified as an alkylating agent. Alkylating agents are
most active in the resting phase of the cell. These drugs are cell cycle non-specific.
There are several types of alkylating agents.
- Mustard gas derivatives: Mechlorethamine, Cyclophosphamide,
Chlorambucil, Melphalan, and Ifosfamide.
- Ethylenimines: Thiotepa and Hexamethylmelamine.
- Alkylsulfonates: Busulfan.
- Hydrazines and Triazines: Altretamine, Procarbazine, Dacarbazine
- Nitrosureas: Carmustine, Lomustine and Streptozocin.
Nitrosureas are unique because, unlike most chemotherapy, they can cross the blood-brain
barrier. They can be useful in treating brain tumors.
- Metal salts: Carboplatin, Cisplatin, and Oxaliplatin.
Note: We strongly encourage you to talk with your health
care professional about your specific medical condition and treatments. The information
contained in this website is meant to be helpful and educational, but is not a substitute
for medical advice.