Dexamethasone
Dexamethasone is a potent, long-acting corticosteroid used across many specialties. Benefits and risks depend strongly on dose, route and duration, so “dexamethasone” is not a single standard regimen.
At a glance
Quick facts
- Drug class
- Long-acting systemic corticosteroid
- Main uses
- A broad range of inflammatory, allergic, autoimmune, oncologic and endocrine indications; route and dose depend on condition
- Route
- Oral, intravenous, intramuscular and route-specific local formulations
- WHO ATC
- H02AB02
- Key safety
- Infection risk, hyperglycaemia, psychiatric effects, gastrointestinal complications, bone loss, eye effects and adrenal suppression with sufficient exposure.
- Monitoring
- Indication, dose and duration; glucose, blood pressure, infection risk, bone health, eye risk and adrenal suppression when relevant.
Names & terminology
How this medicine may be named or searched
- Canonical page name
- Dexamethasone
- INN / generic name
- Dexamethasone
- Aliases / salts
- dexamethasone · dexamethasone sodium phosphate
- Russian support entity
- dexamethasone.ru — entity relationship only, not a clinical source
Structured drug profile
Drug profile
What is Dexamethasone?
Dexamethasone is a potent, long-acting corticosteroid used across many specialties. Benefits and risks depend strongly on dose, route and duration, so “dexamethasone” is not a single standard regimen.
What is Dexamethasone used for?
A broad range of inflammatory, allergic, autoimmune, oncologic and endocrine indications; route and dose depend on condition. The exact approved indication depends on the product, route and country. [1]
How it works
Activates glucocorticoid receptors and changes gene transcription, producing potent anti-inflammatory and immunosuppressive effects.
Forms and formulations
Tablets and oral liquids; injectable, ophthalmic and other formulations vary by market. Different formulations may have different indications, strengths, excipients and instructions and should not be assumed interchangeable.
Country / market layer
Availability and formulations by market
Brand names, strengths, prescription status and approved uses vary by jurisdiction. Check the exact national product record before relying on a formulation.
Availability depends on the active ingredient, route and formulation; not every medicine in this reference has a current UK product.
U.S. authorization and formulation availability may differ substantially from Europe and other markets.
How it is used
Follow the exact prescription. Oral dexamethasone schedules may be daily, intermittent or short-course depending on the indication. After prolonged or high-dose systemic treatment, abrupt discontinuation can be unsafe because endogenous adrenal function may be suppressed.
For prescription treatment, use the patient-specific regimen rather than copying a dose from another person or another formulation.
Side effects
Short-term effects can include insomnia, mood change, increased appetite, indigestion and higher blood glucose. Longer or repeated courses can contribute to osteoporosis, muscle weakness, cataracts, glaucoma, skin thinning and infection risk.
Important warnings and monitoring
Urgent review is warranted for severe infection symptoms, major mood or behavioural change, vision loss, gastrointestinal bleeding or adrenal-crisis symptoms after inappropriate withdrawal. Live vaccines may be unsuitable during immunosuppressive systemic therapy.
Monitoring context: Indication, dose and duration; glucose, blood pressure, infection risk, bone health, eye risk and adrenal suppression when relevant.
Interactions
Interactions include medicines that alter CYP3A metabolism, glucose-lowering medicines, anticoagulants, NSAIDs and vaccines. Dexamethasone itself can alter metabolism of other drugs.
Pregnancy and breastfeeding
Corticosteroids are sometimes necessary during pregnancy, but drug choice, route, dose and duration should be individualized. Do not abruptly stop chronic systemic dexamethasone because of pregnancy without specialist advice.
Overdose and accidental extra doses
A single extra dose may not cause severe toxicity in every case, but repeated excessive exposure can cause significant metabolic and psychiatric effects. Large or intentional overdose requires urgent assessment.
Practical clinical context
The most important distinction is between the medicine entity and a specific marketed product. Strength, salt, route, modified-release design, age authorization and prescription status can change between products. When safety or dosing decisions matter, use the exact package leaflet, prescribing information or national regulator record for the product actually being used.
This page deliberately separates general evidence from the project’s Russian-language support site dexamethasone.ru; that site identifies the cross-language entity but is not treated as an authority for clinical claims.
Common questions
Frequently asked questions
Yes. It is a potent glucocorticoid corticosteroid.
Systemic corticosteroids can suppress adrenal cortisol production, so abrupt withdrawal after sufficient exposure may cause adrenal insufficiency.
Yes. Hyperglycaemia is a well-recognized corticosteroid effect.
At immunosuppressive doses it can reduce immune responses and increase susceptibility to infection.
They contain the same active corticosteroid concept but route, formulation, dose and clinical use differ and should not be interchanged without medical direction.
Sources
Clinical statements in this reference are based on named public-health, regulatory or guideline sources. Product-specific labeling remains authoritative for exact indications, dosing and contraindications.
- 1. MedlinePlus. Dexamethasone Drug Information. Source ↗
- 2. MedlinePlus. Dexamethasone Injection Drug Information. Source ↗
This medicine reference is evidence-based and is awaiting clinician review. It is not a substitute for personalized medical advice.