Corticosteroids

Corticosteroids (often just called "steroids") are powerful anti-inflammatory medications widely used in ophthalmology and neurology. They work by suppressing the immune system's inflammatory response.

Types of Corticosteroids

Systemic (Whole Body)

Oral

• Prednisone-most common oral steroid
• Dexamethasone
• Prednisolone

Intravenous

• Methylprednisolone (Solu-Medrol)
• Used for severe inflammation
• See IV Steroids

Ophthalmic (Eye)

Eye drops

• Prednisolone acetate
• Dexamethasone
• Loteprednol
• Difluprednate

Injections

• Periocular (around the eye)
• Intravitreal (inside the eye)

Common Uses in Neuro-Ophthalmology

Optic Neuritis

• IV steroids speed recovery
• Optic neuritis treatment
• High-dose pulse therapy typical

Giant Cell Arteritis

• High-dose steroids urgently
• Prevents blindness in other eye
• See Giant Cell Arteritis

Thyroid Eye Disease

• Active inflammatory phase
• IV steroids often preferred
• See Thyroid Eye Disease

Myasthenia Gravis

• Part of treatment regimen
• Often combined with other immunosuppressants
• See Myasthenia Gravis

Other Conditions

• Optic perineuritis
• NMO attacks
• Inflammatory orbital disease
• Uveitis

How They Work

Corticosteroids:

• Enter cells and bind to receptors
• Alter gene expression
• Reduce production of inflammatory chemicals
• Suppress immune cell activity
• Decrease swelling and redness

Dosing

High-Dose IV Pulse

• Methylprednisolone 1000mg daily for 3-5 days
• Used for acute severe inflammation
• Usually followed by oral taper

Moderate-High Oral Dose

• Prednisone 40-80mg daily
• Gradually tapered over weeks to months
• Typical for conditions requiring prolonged treatment

Low-Dose Maintenance

• Prednisone 5-10mg daily
• Long-term for chronic conditions
• Goal is lowest effective dose

Eye Drops

• Frequency varies by condition
• May be hourly initially for severe inflammation
• Gradually tapered

Side Effects

Short-Term (More Common)

• Increased appetite and weight gain
• Mood changes, insomnia
• Elevated blood sugar
• Fluid retention
• Increased blood pressure

Long-Term (With Prolonged Use)

• Osteoporosis (bone thinning)
• Cataracts
• Glaucoma
• Adrenal suppression
• Easy bruising
• Skin thinning
• Increased infection risk
• Weight gain (central obesity)
• Muscle weakness

Eye-Specific (Drops or Systemic)

• Increased eye pressure (glaucoma)
• Cataract formation
• Delayed wound healing
• Increased infection risk

Tapering

Why Tapering Is Necessary

Long-term steroid use suppresses your body's natural cortisol production. Stopping suddenly can cause:

• Fatigue
• Weakness
• Low blood pressure
• Adrenal crisis (rarely, dangerous)

How to Taper

• Gradual dose reduction over weeks to months
• Slower taper for longer treatment courses
• Follow your doctor's specific instructions
• Never stop abruptly without medical guidance

For practical advice on managing side effects and the tapering process, see living with steroid treatment.

Monitoring

During Treatment

• Blood pressure
• Blood sugar
• Weight
• Eye pressure (if on eye drops or long-term systemic)
• Bone density (DEXA scan for long-term use)
• Signs of infection

Preventive Measures

For prolonged use:

• Calcium and vitamin D supplementation
• Consider bone-protective medication
• Regular eye exams
• Diabetes screening
• Vaccinations (but avoid live vaccines)

Interactions

• Diabetes medications (may need adjustment)
• Blood thinners
• NSAIDs (increased GI risk)
• Live vaccines (avoid during treatment)
• Many other medications-inform all your doctors

Special Considerations

Pregnancy

• Some steroids safer than others
• Discuss with your doctor
• Benefits may outweigh risks in some situations

Diabetes

• Steroids raise blood sugar
• May need medication adjustment
• More frequent monitoring needed

Prior Infections

• Can reactivate tuberculosis, hepatitis
• Screening may be needed before starting

Frequently Asked Questions

Are these the same as anabolic steroids?

No. Corticosteroids are anti-inflammatory medications. Anabolic steroids are muscle-building hormones sometimes abused by athletes. Different drugs with different purposes.

Why do I feel so much better on steroids?

Steroids rapidly reduce inflammation and can also cause euphoria. This is why it's important to taper slowly-both to avoid adrenal insufficiency and to prevent symptom rebound.

Can I take steroids long-term?

Sometimes necessary, but goal is usually to use the lowest dose for the shortest time. Long-term use increases side effect risk.

What if I miss a dose?

Take it as soon as you remember, unless it's almost time for your next dose. Don't double up. Call your doctor if you're unsure.