Methylprednisolone is a steroid that prevents the release of substances in the body that cause inflammation.

Methylprednisolone is used to treat many different inflammatory conditions such as arthritis, lupus, psoriasis, ulcerative colitis, allergic disorders, gland (endocrine) disorders, and conditions that affect the skin, eyes, lungs, stomach, nervous system, or blood cells.

Methylprednisolone may also be used for purposes not listed in this medication guide.

You should not use methylprednisolone if you are allergic to it, or if you have:

• a fungal infection anywhere in your body.

Methylprednisolone can weaken your immune system, making it easier for you to get an infection. Steroids can also worsen an infection you already have, or reactivate an infection you recently had. Tell your doctor about any illness or infection you have had within the past several weeks.

To make sure methylprednisolone is safe for you, tell your doctor if you have ever had:

• a thyroid disorder;
• herpes infection of the eyes;
• stomach ulcers, ulcerative colitis, or diverticulitis;
• depression, mental illness, or psychosis;
• liver disease (especially cirrhosis);
• high blood pressure;
• osteoporosis;
• a muscle disorder such as myasthenia gravis; or
• multiple sclerosis.

Also tell your doctor if you have diabetes. Steroid medicines may increase the glucose (sugar) levels in your blood or urine. You may also need to adjust the dose of your diabetes medications.

It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.

It is not known whether methylprednisolone passes into breast milk or if it could affect the nursing baby. Tell your doctor if you are breast-feeding.

Use Methylprednisolone Dose Pack (Oral) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

• shortness of breath (even with mild exertion), swelling, rapid weight gain;
• bruising, thinning skin, or any wound that will not heal;
• blurred vision, tunnel vision, eye pain, or seeing halos around lights;
• severe depression, changes in personality, unusual thoughts or behavior;
• new or unusual pain in an arm or leg or in your back;
• bloody or tarry stools, coughing up blood or vomit that looks like coffee grounds;
• seizure (convulsions); or
• low potassium--leg cramps, constipation, irregular heartbeats, fluttering in your chest, increased thirst or urination, numbness or tingling.

Steroids can affect growth in children. Tell your doctor if your child is not growing at a normal rate while using this medicine.

Common side effects may include:

• fluid retention (swelling in your hands or ankles);
• dizziness, spinning sensation;
• changes in your menstrual periods;
• headache;
• mild muscle pain or weakness; or
• stomach discomfort, bloating.

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.

Avoid being near people who are sick or have infections. Call your doctor for preventive treatment if you are exposed to chicken pox or measles. These conditions can be serious or even fatal in people who are using steroid medication.

Do not receive a "live" vaccine while using methylprednisolone. The vaccine may not work as well during this time, and may not fully protect you from disease. Live vaccines include measles, mumps, rubella (MMR), polio, rotavirus, typhoid, yellow fever, varicella (chickenpox), zoster (shingles), and nasal flu (influenza) vaccine.