You should not use  Decadron if you have a fungal infection anywhere in your body.
Tell your doctor about all your medical conditions, and all the medicines you are using. There are many other diseases that can be affected by steroid use, and many other medicines that can interact with steroids.
Before taking this medicine
You should not use Decadron if you are allergic to it, or if you have:
a fungal infection anywhere in your body.
Tell your doctor if you have ever had:
liver disease (such as cirrhosis);
kidney disease;
a thyroid disorder;
malaria;
tuberculosis;
osteoporosis;
a muscle disorder such as myasthenia gravis;
diabetes (steroid medicine may increase glucose levels in your blood or urine);
glaucoma or cataracts;
herpes infection of the eyes;
stomach ulcers, ulcerative colitis, diverticulitis, inflammatory bowel disease;
depression or mental illness;
congestive heart failure; or
high blood pressure.
Steroid medication affects your immune system. You may get infections more easily. Steroids can also worsen or reactivate an infection you've already had. Tell your doctor about any illness or infection you have had within the past several weeks.
It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant.
You should not breastfeed while using Decadron.
