Oral Steroids

Oral steroids are medications taken by mouth that mimic cortisol, a natural hormone produced by your adrenal glands. They are mainly used to reduce inflammation and suppress immune system activity in a wide range of medical conditions.

What Oral Steroids Are

They belong to a class called corticosteroids (not to be confused with anabolic steroids used for muscle building).

They work by:

Reducing inflammation
Suppressing overactive immune responses
Decreasing swelling, redness, and allergic reactions

Common Oral Steroids (Corticosteroids)

Prednisone – one of the most widely prescribed oral steroids
Prednisolone – often used in children or liver-impaired patients
Dexamethasone – very potent, used in severe inflammation and emergencies
Methylprednisolone – used for asthma, allergic reactions, and autoimmune flares
Hydrocortisone (oral form in specific cases) – milder steroid effect

What They Are Used For

Doctors prescribe oral steroids for conditions like:

Asthma and severe allergies
Autoimmune diseases (e.g., lupus, rheumatoid arthritis)
Skin conditions (eczema, severe dermatitis)
Inflammatory bowel disease (Crohn’s disease, ulcerative colitis)
Severe infections complications (to reduce inflammation, not treat infection itself)
Organ transplant rejection prevention

How They Work in the Body

They bind to receptors inside cells and turn down inflammatory gene activity. This leads to:

Reduced immune cell activity
Lower cytokine production (inflammation signals)
Decreased tissue swelling

Possible Side Effects

Short-term use:

Increased appetite
Mood changes (irritability, anxiety)
Sleep problems
Fluid retention

Long-term use:

Weight gain
High blood pressure
Bone thinning (osteoporosis)
Blood sugar increase (can trigger diabetes)
Suppressed natural cortisol production (adrenal suppression)
Higher infection risk

Important Safety Notes

They must be used only under medical supervision
Stopping suddenly after long use can be dangerous (requires tapering)
Dose and duration matter greatly—short courses are very different from long-term therapy