What are the possible side effects of dexamethasone?

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Side Effects of This Medicine

Side Effects of This MedicineCorticosteroids may lower your resistance to infections. Also, any infection you get may be harder to treat. Always check with your doctor as soon as possible if you notice any signs of a possible infection, such as sore throat, fever, sneezing, or coughing.

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. When this medicine is used for short periods of time, side effects usually are rare. However, check with your doctor as soon as possible if any of the following side effects occur:

  • Less common
  • Decreased or blurred vision; frequent urination; increased thirst
  • Rare
    • Blindness (sudden, when injected in the head or neck area); burning, numbness, pain, or tingling at or near place of injection ; confusion; excitement ; false sense of well-being; hallucinations (seeing, hearing, or feeling things that are not there); mental depression; mistaken feelings of self-importance or being mistreated; mood swings (sudden and wide); redness, swelling, or other sign of allergy or infection at place of injection; restlessness ; skin rash or hives
  • Additional side effects may occur if you take this medicine for a long time. Check with your doctor if any of the following side effects occur:

    • Abdominal or stomach pain or burning (continuing); acne; bloody or black, tarry stools ; changes in vision; eye pain; filling or rounding out of the face; headache; irregular heartbeat; menstrual problems; muscle cramps or pain; muscle weakness; nausea; pain in arms, back, hips, legs, ribs, or shoulders; pitting, scarring, or depression of skin at place of injection; reddish purple lines on arms, face, groin, legs, or trunk; redness of eyes; sensitivity of eyes to light; stunting of growth (in children); swelling of feet or lower legs; tearing of eyes; thin, shiny skin; trouble in sleeping; unusual bruising; unusual increase in hair growth; unusual tiredness or weakness; vomiting; weight gain (rapid); wounds that will not heal

    Other 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. However, check with your doctor if any of the following side effects continue or are bothersome:

    • More common
      • Increased appetite; indigestion; loss of appetite (for triamcinolone only); nervousness or restlessness
    • Less common or rare
      • Darkening or lightening of skin color; dizziness or lightheadedness; flushing of face or cheeks; hiccups; increased joint pain (after injection into a joint); increased sweating; nosebleeds (after injection into the nose) ; sensation of spinning

    After you stop using this medicine, your body may need time to adjust. The length of time this takes depends on the amount of medicine you were using and how long you used it. If you have taken large doses of this medicine for a long time, your body may need one year to adjust. During this time, check with your doctor immediately if any of the following side effects occur:

    • Abdominal, stomach, or back pain; dizziness ; fainting; fever; loss of appetite (continuing); muscle or joint pain; nausea; reappearance of disease symptoms; shortness of breath ; unexplained headaches (frequent or continuing) ; unusual tiredness or weakness; vomiting; weight loss (rapid)

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