Mesnex (Mesna Oral)

Generic name: Mesna (MES-na)
Drug class: Antineoplastic detoxifying agents

Usage of Mesnex (Mesna Oral)

Mesna is used to lower the risk of inflammation and bleeding of the bladder (hemorrhagic cystitis) in patients who receive ifosfamide (cancer medicine).

This medicine is available only with your doctor's prescription.

Mesnex (Mesna Oral) side effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common

Black, tarry stools

bleeding gums

bloating or swelling of the face, arms, hands, lower legs, or feet

blood in the urine

chest pain

chills

cough

decreased urination

dizziness

dry mouth

fainting

fast, pounding, or irregular heartbeat or pulse

fever

increased thirst

lightheadedness

loss of appetite

mood changes

muscle pain or cramps

nausea

numbness or tingling in the hands, feet, or lips

painful or difficult urination

pinpoint red spots on the skin

rapid breathing

rapid weight gain

seizures

sore throat

sores, ulcers, or white spots on the lips or in the mouth

sunken eyes

swelling

swollen glands

tightness in the chest

trouble breathing

unusual bleeding or bruising

unusual tiredness or weakness

unusual weight gain or loss

vomiting

wrinkled skin

Less common

Blurred vision

confusion

dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position

sweating

Incidence not known

Coughing or spitting up blood

dark urine

general tiredness and weakness

headache

light-colored stools

nervousness

pounding in the ears

slow or fast

upper right abdominal or stomach pain

yellow eyes and skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Diarrhea

difficulty having a bowel movement

hair loss

lack or loss of strength

sleepiness or unusual drowsiness

stomach pain

weight loss

Less common

Back pain

belching

feeling of warmth

heartburn

increased sweating

indigestion

redness of the face, neck, arms, and occasionally, upper chest

stomach discomfort or upset

trouble sleeping

Incidence not known

Change or loss of taste

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Before taking Mesnex (Mesna Oral)

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

Appropriate studies have not been performed on the relationship of age to the effects of mesna in the pediatric population. Safety and efficacy have not been established.

Geriatric

Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of mesna in the elderly. However, elderly patients are more likely to have age-related liver, kidney, and heart problems, which may require caution and an adjustment in the dose for patients receiving mesna.

Breast Feeding

Studies suggest that this medication may alter milk production or composition. If an alternative to this medication is not prescribed, you should monitor the infant for side effects and adequate milk intake.

Interactions with Medicines

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

Warfarin

Interactions with Food/Tobacco/Alcohol

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Relate drugs

How to use Mesnex (Mesna Oral)

Take this medicine exactly as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered.

Drink extra fluids (1 to 2 liters per day) so you will pass more urine while you are using this medicine. This may help prevent bladder and kidney problems.

If you vomit within 2 hours after you take this medicine, call your doctor right away.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

For oral dosage form (tablets):

For prevention of hemorrhagic cystitis:

Adults—Dose must be determined by your doctor. Your dose will usually be taken 2 hours and 6 hours after each dose of ifosfamide.

Children—Use and dose must be determined by your doctor.

Missed Dose

This medicine needs to be given on a fixed schedule. If you miss a dose or forget to use your medicine, call your doctor or pharmacist for instructions.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Warnings

It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly. Blood and urine tests will be needed to check for unwanted effects.

This medicine is used together with ifosfamide. Ifosfamide can harm your unborn baby while you are pregnant. It may also cause birth defects if the father is using it when his sexual partner becomes pregnant. Use an effective form of birth control during treatment with this medicine in combination with ifosfamide and for 6 months after the last dose. Male patients with female partners should use an effective form of birth control during treatment and for 3 months after the last dose. If you think you have become pregnant while using this medicine, tell your doctor right away.

This medicine may cause serious allergic reactions, including anaphylaxis, which can be life-threatening and require immediate medical attention. The most serious signs of this reaction are very fast or irregular breathing, gasping for breath, or fainting. Other signs may include: changes in facial skin color, very fast but irregular heartbeat or pulse, hive-like swellings on the skin, and puffiness or swellings of the eyelids or around the eyes. If these side effects occur, get emergency help at once.

Serious skin reactions can occur with this medicine. Check with your doctor right away if you have blistering, peeling, or loosening of the skin, red skin lesions, severe acne or skin rash, sores or ulcers on the skin, or fever or chills while you are using this medicine.

Make sure any doctor or dentist who treats you knows that you are using this medicine. It may affect the results of certain medical tests.

Disclaimer

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