Cortisone is one of the most frequently prescribed and at the same time most misunderstood drugs in modern medicine. As a doctor, I experience daily how patients fluctuate between justified concern and unfounded fear. This article clarifies the real effects, actual risks, and persistent myths – evidence-based and from a clinical perspective.
Table of Contents
What is Cortisone anyway?
Cortisone is a natural hormone produced in the adrenal cortex. In medicine, we use synthetic variants – called glucocorticoids or corticosteroids – which are modeled after natural cortisol but often have stronger effects.
The human body produces about 20-30 mg of cortisol daily, mainly in the early morning hours. This endogenous cortisol is vital for numerous metabolic processes, the stress response, and the immune system. The therapeutic use of cortisone takes advantage of these diverse effects.
💡 Important to know: When doctors talk about "cortisone," they usually mean synthetic glucocorticoids like prednisolone, dexamethasone, or hydrocortisone. These differ significantly in potency and duration of action.
Difference between Cortisone and Corticosteroids
Strictly speaking, cortisone is itself an inactive precursor that is converted into effective cortisol in the liver. In clinical practice, we use various synthetic corticosteroids that differ in their potency, half-life, and mineralocorticoid effects.
Mode of Action and Mechanism
Cortisone acts at the cellular level via specific receptors in the cell nucleus. After binding to these glucocorticoid receptors, the complex influences gene expression and thus the production of various proteins. This mechanism also explains why the effect does not occur immediately but becomes fully developed after a few hours.
The Three Main Effects
| Effect | Mechanism | Clinical Effect |
|---|---|---|
| Anti-inflammatory | Inhibition of inflammatory mediators (cytokines, prostaglandins) | Reduction of swelling, redness, pain |
| Immunosuppressive | Suppression of T-cell activation and antibody formation | Dampening of excessive immune reactions |
| Metabolic | Influencing glucose, fat, and protein metabolism | Increase in blood sugar, catabolic effects |
The anti-inflammatory effect occurs through multiple mechanisms: cortisone inhibits phospholipase A2, reduces the expression of COX-2 and iNOS, and stabilizes cell membranes. These effects intervene at various points in the inflammation cascade, explaining the high efficacy.
Medical Areas of Application
The indications for cortisone are diverse and range from life-threatening conditions to chronic diseases. As an emergency and intensive care physician, I regularly use cortisone in acute situations, while in outpatient practice, chronic diseases often take center stage.
Main Indications by Specialty
Pneumology/Respiratory Diseases:
- Asthma bronchiale (acute and chronic)
- COPD exacerbations
- Interstitial lung diseases
- Allergic alveolitis
Rheumatology/Autoimmune Diseases:
- Rheumatoid arthritis
- Systemic lupus erythematosus
- Polymyalgia rheumatica
- Giant cell arteritis
Dermatology:
- Severe eczema and atopic dermatitis
- Psoriasis
- Bullous dermatoses
- Allergic contact dermatitis
Emergency and Intensive Care Medicine:
- Anaphylactic shock
- Septic shock
- Cerebral edema
- ARDS (Acute Respiratory Distress Syndrome)
Overview of Forms of Administration
The choice of form of administration has a decisive influence on the effect and side effect profile. As a general rule: The more local the application, the lower the systemic side effects.
| Form of Administration | Examples | Typical Application | Systemic Effect |
|---|---|---|---|
| Topical (Skin) | Creams, ointments, lotions | Eczema, psoriasis, dermatitis | Minimal when used correctly |
| Inhalative | Metered-dose inhalers, powder inhalers | Asthma, COPD | Low, dose-dependent |
| Nasal | Nasal sprays | Allergic rhinitis, nasal polyps | Very low |
| Intra-articular | Joint injections | Arthritis, joint effusion | Low, short-term |
| Oral | Tablets, capsules | Systemic diseases | High, dose-dependent |
| Intravenous | Injections, infusions | Emergencies, pulse therapy | Maximal |
📋 Clinical Practice: With inhaled corticosteroids, mouth rinsing after use is essential to avoid local fungal infections (oropharyngeal candidiasis). This is often neglected in practice.
Side Effects and Risks
The side effect profile of cortisone is complex and highly dependent on dose, duration of use, and individual risk factors. It is important to distinguish between short-term therapy (less than 14 days) and long-term therapy (over 3 months).
Acute vs. Chronic Side Effects
| Organ System | Short-term Therapy (<14 days) | Long-term Therapy (>3 months) |
|---|---|---|
| Metabolism | Increase in blood sugar, increased appetite, weight gain | Diabetes mellitus, dyslipidemia, Cushing's syndrome |
| Bones | No relevant effects | Osteoporosis, increased fracture risk |
| Immune System | Slightly increased susceptibility to infections | Significantly increased risk of infection, opportunistic infections |
| Skin | Acne, skin redness | Skin atrophy, striae, delayed wound healing |
| Psyche | Sleep disturbances, euphoria, restlessness | Depression, psychosis, cognitive disorders |
| Eyes | Rarely relevant | Cataracts, glaucoma |
| Gastrointestinal | Dyspepsia, nausea | Ulcer risk (especially with NSAIDs), pancreatitis |
⚠️ Special caution required in:
- Diabetes mellitus (requires close BG monitoring)
- Active or latent infections (tuberculosis screening!)
- Existing osteoporosis (prophylaxis with Vitamin D and calcium)
- Mental health conditions (monitoring required)
- Concomitant use of NSAIDs (increased ulcer risk)
Adrenal Insufficiency and Tapering Off
A critical aspect of cortisone therapy is the potential suppression of the body's own cortisol production. When given systemically for more than 3 weeks, the hypothalamic-pituitary-adrenal axis (HPA axis) can be suppressed. Abrupt discontinuation can then lead to acute adrenal insufficiency – a potentially life-threatening condition.
Tapering off should be done individually. A general rule is: For therapy duration over 3 weeks and a prednisolone equivalent dose over 7.5 mg daily, gradual tapering is required. Reduction is typically done in 2.5-5 mg steps every 3-7 days, depending on the starting dose and duration of therapy.
Common Myths and Fact Check
In my daily practice, I regularly encounter the same misunderstandings about cortisone. Time for an evidence-based fact check of the most common myths.
Myth 1: "Cortisone is generally dangerous"
✓ Facts:
Cortisone is one of the safest and most effective drugs when used appropriately. Short-term therapy is virtually free of side effects. Even long-term therapies are well manageable with proper monitoring and prophylaxis. Without cortisone, many autoimmune diseases would not be treatable.
Myth 2: "It automatically makes you gain weight"
✓ Facts:
Weight gain is dose-dependent and occurs primarily with higher dosages over time. The mechanism is a combination of increased appetite and altered fat distribution. With short-term therapy and low maintenance doses (under 7.5 mg prednisolone equivalent), the risk is minimal. Conscious nutrition can counteract.
Myth 3: "Cortisone massively weakens the immune system"
✓ Facts:
Cortisone modulates the immune system, but does not weaken it across the board. At normal therapeutic doses, immunity against common pathogens remains largely intact. The increased risk of infection is often overestimated. It becomes critical only at very high doses or in combination with other immunosuppressants. Standard vaccinations (except live vaccines) are possible and recommended.
Myth 4: "Cortisone cream makes the skin permanently thin"
✓ Facts:
Skin atrophy occurs only with improper long-term use of high-potency corticosteroids on sensitive skin areas (face, genital area). With correct, time-limited use according to medical prescription, the risk is minimal. The skin often regenerates after discontinuation. Modern application regimes (e.g. interval therapy) further minimize the risk.
Myth 5: "Cortisone should not be abruptly stopped"
✓ Facts:
This only applies to systemic therapies over 3 weeks. Short steroid bursts (e.g. 5 days in asthma exacerbation) can be stopped without tapering. The suppression of the HPA axis takes time to develop. Topical, inhalative, and nasal applications generally do not require tapering.
Practical Application Tips
From clinical experience, I would like to summarize important practical tips for the safe and effective use of cortisone.
💊 Optimal Time of Intake
Take systemic cortisone in the morning between 6 and 8 am. This corresponds to the natural cortisol rhythm and minimizes sleep disturbances. When taken twice daily: 2/3 in the morning, 1/3 at noon. Do not take in the evening unless explicitly prescribed.
Exception: In case of nocturnal asthma, an evening dose may be useful.
🛡️ Protection for the stomach – when necessary?
Cortisone alone only moderately increases the risk of ulcers. A proton pump inhibitor (PPI) is primarily indicated in the following situations:
- Concurrent use of NSAIDs
- History of ulcers
- High-dose cortisone pulse therapy
- Age over 65 years plus additional risk factors
- Anticoagulation
🦴 Osteoporosis Prophylaxis
For systemic long-term cortisone therapy (from 3 months) with more than 5 mg prednisolone equivalent daily:
- Vitamin D: 800-1000 IU daily
- Calcium: 1000-1500 mg daily (if nutrition is insufficient)
- Bone density measurement initially and every 1-2 years
- In the case of manifest osteoporosis: consider bisphosphonates
📊 Necessary Controls in Long-term Therapy
Regular Monitoring:
- Blood pressure monthly
- Blood sugar (fasting or HbA1c) every 3 months
- Electrolytes initially and as needed
- Ophthalmological check annually (cataracts, glaucoma)
- Bone density every 1-2 years
- Weight regularly
0 Comments