• Swelling

  It works on the immune system to help relieve swelling, redness, itching, and allergic reactions. Dexamethasone tablets are also used in combination with other anti-myeloma products for the treatment of adults with multiple myeloma. [mayoclinic.org]

• Inflammation

  It is used to treat a number of different conditions, such as inflammation (swelling), severe allergies, adrenal problems, arthritis, asthma, blood or bone marrow problems, kidney problems, skin conditions, and flare-ups of multiple sclerosis. [mayoclinic.org]

• Cough

  […] swelling of the fingers, hands, feet, or lower legs trouble thinking, speaking, or walking troubled breathing at rest weight gain Incidence not known Abdominal or stomach cramping and/or burning (severe) or pain backache bloody, black, or tarry stools cough [mayoclinic.org]

• Diarrhea

  […] or walking troubled breathing at rest weight gain Incidence not known Abdominal or stomach cramping and/or burning (severe) or pain backache bloody, black, or tarry stools cough or hoarseness darkening of the skin decrease in height decreased vision diarrhea [mayoclinic.org]

• Myopathy

  This medicine may cause myopathy. Tell your doctor right away if you have new or worsening unexplained muscle pain, tenderness, or weakness. This medicine may cause changes in mood or behavior for some patients. [mayoclinic.org]

Dexamethasone tablets are also used in combination with other anti-myeloma products for the treatment of adults with multiple myeloma. This medicine is available only with your doctor's prescription. [mayoclinic.org]

Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. [mayoclinic.org]