Health Guide
Drug Guide

Glutamine (Oral route)



Brand Names:

Dosage Forms:



Amino Acid Supplement

Uses of This Medicine:

Glutamine is a substance naturally produced in the body to help regulate cell growth and function. There may also be man-made versions of these substances. Glutamine is used along with human growth hormone and a specialized diet to treat short bowel syndrome

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

For good health, it is important that you eat a balanced and varied diet. Follow carefully any diet program your health care professional may recommend. For your specific dietary vitamin and/or mineral needs, ask your health care professional for a list of appropriate foods. If you think that you are not getting enough vitamins and/or minerals in your diet, you may choose to take a dietary supplement.

Before Using This Medicine:

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:


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.


Studies on this medicine have been done only in adult patients, and there is no specific information comparing use of glutamine in children with use in other age groups.

Older adults

Many medicines have not been studied specifically in older people. Therefore, it may not be known whether they work exactly the same way they do in younger adults or if they cause different side effects or problems in older people. There is no specific information comparing use of glutamine in the elderly with use in other age groups. However, elderly patients are more likely to be sensitive requiring the need for dosage adjustment.


Pregnancy CategoryExplanation
All TrimestersCAnimal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.


There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Other 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. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.

Other interactions

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.

Other medical problems

The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

Proper Use of This Medicine:


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.

Missed dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.


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.

Precautions While Using This Medicine:

It is very important that your doctor check you at regular visits.

Side Effects of This Medicine:

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:

Less common
Blood in urine
changes in skin color
cold hands and feet
difficulty swallowing
fast heartbeat
frequent and painful urination
lower back or side pain
pain, redness, or swelling in arm or leg
puffiness or swelling of the eyelids or around the eyes, face, lips or tongue
rapid, shallow breathing
shortness of breath
skin rash
stomach pain
sudden decrease in amount of urine
tightness in chest
unusual tiredness or weakness

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
Cough or hoarseness
frequent urge to defecate
straining while passing stool
Less common
Abnormal or decreased touch sensation
back pain
bacterial infection
bleeding after defecation
bleeding, blistering, burning, coldness, discoloration of skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, ulceration, or warmth at site
bloated full feeling
body aches or pain
breast pain, female
chest pain
change in the color, amount, or odor of vaginal discharge
Crohn's disease, aggravated
dark urine
decreased urination
difficulty having a bowel movement (stool)
difficulty in moving
discoloration of fingernails or toenails
dry mouth
dryness or soreness of throat
ear or hearing symptoms
excess air or gas in stomach or intestines
feeling sad or empty
feeling unusually cold shivering
full or bloated feeling
general feeling of discomfort or illness
increase in heart rate
joint pain;
lack of appetite
light-colored stools
loss of appetite
loss of interest or pleasure
muscle aches and pains
muscle pain or stiffness
pain in joints
pain or burning while urinating
pains in stomach, side, or abdomen, possibly radiating to the back
passing gas
pressure in the stomach
rectal bleeding
runny nose
sore throat
stomach bloating, burning, cramping, or pain
stuffy nose
sunken eyes
swelling of abdominal or stomach area
swelling of face
swelling of hands, ankles, feet, or lower legs
swollen joints
tender, swollen glands in neck;
trouble concentrating
trouble sleeping
trouble in swallowing
unable to sleep
uncomfortable swelling around anus
unpleasant breath odor
unusual tiredness or weakness
voice changes
vomiting of blood
weight loss
wrinkled skin
yellow eyes or skin

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.

Last Updated: 10/12/2016

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