Dexamethasone is in a class of drugs called steroids. Dexamethasone reduces swelling and decreases the body’s immune response.

Dexamethasone is used to treat many different conditions. It is used to treat endocrine (hormonal) disorders when the body does not produce enough of its own steroids. It is also used to treat many immune and allergic disorders, such as arthritis, lupus, severe psoriasis, severe asthma, ulcerative colitis, and Crohn’s disease.

Dexamethasone may also be used for purposes other than those listed in this medication guide.

Take dexamethasone exactly as directed by your doctor. Do not take more or less than is prescribed for you. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.

Take each dose with a full glass of water.

Take dexamethasone with food or milk to lessen stomach upset.

Measure the liquid with the dropper provided or with a special dose-measuring spoon or cup. Ask your pharmacist for a dose-measuring spoon or cup if you do not have one.

If you are taking one dose daily, take that dose before 9 a.m. if possible, to follow the body’s natural cycle. If you take more than one dose daily, space the doses evenly throughout the day as directed by your doctor.

Do not stop taking dexamethasone suddenly if you have been taking it for a few weeks. You may need a gradual reduction in dosage before you stop taking this medication.

Carry some type of medical identification that will let others know you are taking dexamethasone in the case of an emergency.

Store dexamethasone at room temperature away from moisture and heat.

Do not take any other over-the-counter or prescription medications, including herbal products, during treatment with dexamethasone without first talking to your doctor. Many other medicines can interact with dexamethasone resulting in side effects or altered effectiveness of the medications.

Use alcohol cautiously. Acting together, alcohol and dexamethasone can be damaging to the stomach.

Avoid sources of infection. Wash your hands frequently and keep them away from the mouth and eyes. Your immune system may be weakened while taking dexamethasone.

Do not receive any immunizations during treatment with dexamethasone without first talking to your doctor.

Seek emergency medical attention. A single large dose of this medication is unlikely to cause symptoms or death. An overdose is more likely to be caused by a chronic overdose—large doses taken over a period of time.

Symptoms of an overdose include obesity (especially around the stomach); a round face; increased hair growth (especially around the face); acne; bruising; increased blood pressure; swollen hands, feet, or ankles (fluid retention); and sore or weak muscles.

If you take one dose daily, take the missed dose as soon as you remember. However, if you don’t remember until the next day, skip the dose you missed and take only the regular daily dose.

If you take more than one dose daily, you can either take the missed dose as soon as you remember, or you can take two doses (the one you missed plus the regularly scheduled dose) when it is time for the next dose.

If you take one dose every other day, take the missed dose as soon as you remember, then go back to your regular every-other-day schedule.

Do not stop taking dexamethasone suddenly if you have been taking it for a few weeks. You may need a gradual reduction in dosage before you stop taking this medication.

Take dexamethasone with food or milk to lessen stomach upset.

Carry some type of medical identification that will let others know you are taking dexamethasone in the case of an emergency.

Do not take dexamethasone if you have a serious bacterial, viral, or fungal infection. Dexamethasone weakens the body’s immune response and thus its ability to fight infection.

Before taking this medication, tell your doctor if you have

• kidney disease,

• liver disease,

• high blood pressure or heart disease,

• ulcerative colitis, diverticulitis, or stomach ulcers,

• hypothyroidism,

• a psychiatric condition,

• osteoporosis,

• myasthenia gravis,

• diabetes mellitus, or

• any other medical conditions.

You may not be able to take dexamethasone, or you may require a dosage adjustment or special monitoring during treatment if you have any of the conditions listed above.

Dexamethasone is in the FDA pregnancy category C. This means that it is not known whether dexamethasone will harm an unborn baby. Do not take this medication without first talking to your doctor if you are pregnant.

Dexamethasone passes into breast milk. Do not take dexamethasone without first talking to your doctor if you are breast-feeding a baby.

Your pharmacist has addition information written for health professionals about dexamethasone that you may read.

Dexamethasone is available with a prescription under the brand name Decadron. Other brand or generic formulations may also be available. Ask your pharmacist any questions you have about this medication, especially if it is new to you.

• Decadron 0.25 mg—orange, scored, five-sided tablets

• Decadron 0.5 mg—yellow, scored, five-sided tablets

• Decadron 0.75 mg—bluish-green, scored, five-sided tablets

• Decadron 1.5 mg—pink, scored, five-sided tablets

• Decadron 4 mg—white, scored, five-sided tablets

• Decadron 6 mg—green, scored, five-sided tablets

• Decadron Elixir 0.5 mg per 5 mL (1 teaspoon)—clear, red liquid