Dexamethasone 4mg
Generic For: Decadron
Dexamethasone 4mg (brand name Decadron) is a prescription corticosteroid tablet used to reduce inflammation and calm an overactive immune system. It treats a wide range of conditions, including severe allergies, arthritis flares, asthma, and certain autoimmune and endocrine disorders. After a licensed provider reviews your prescription, your order ships from a licensed U.S. pharmacy.
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7-day supply · $2.86/tablet
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Buy Dexamethasone 4mg Tablets Online
A corticosteroid for inflammation, severe allergic reactions, and autoimmune conditions
Dexamethasone 4mg Quick Facts
| Drug class | Corticosteroid (glucocorticoid) |
|---|---|
| Treats | Inflammation, severe allergic reactions, autoimmune conditions, asthma flares |
| Form | Tablet |
| Typical dosing | Take 1 tablet by mouth once a day in the morning after breakfast for 7 days. |
| Prescription required | Yes — prescription only |
What Is Dexamethasone 4mg?
Dexamethasone is a corticosteroid, a lab-made version of hormones your adrenal glands produce naturally. It works by reducing inflammation and suppressing immune system activity that causes swelling, pain, and allergic responses. The 4mg tablet is a higher-strength option often used for short courses during flares of inflammatory or allergic conditions. It is available only with a prescription and should be taken exactly as directed, since dose and duration vary widely by condition.
What Does Dexamethasone 4mg Treat?
Severe allergic reactions and inflammation
Rheumatoid arthritis and other rheumatic disorders
Asthma and other respiratory conditions
Skin conditions such as severe dermatitis
Autoimmune conditions such as lupus
Certain blood disorders and cancers (adjunct therapy)
Adrenal insufficiency (endocrine disorders)
Dexamethasone 4mg Dosage
Initial: 0.75 mg to 9 mg by mouth daily, depending on the condition
Take once daily or in divided doses, with food
Dose is individualized and tapered gradually; do not stop abruptly
Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.
Dexamethasone 4mg Side Effects
Common side effects
- Increased appetite
- Weight gain
- Trouble sleeping (insomnia)
- Upset stomach or indigestion
- Mood changes or irritability
- Increased blood sugar
- Fluid retention or swelling
- Headache
Serious side effects
Stop taking this medication and seek medical attention right away if you experience:
- Signs of infection (fever, chills, sore throat)
- Severe mood changes, confusion, or depression
- Vision changes or eye pain
- Black or tarry stools, vomiting blood
- Significant swelling, rapid weight gain, or shortness of breath
- Signs of adrenal problems (severe fatigue, dizziness, nausea) after stopping
Warnings & Interactions
Do not stop suddenly after prolonged use — dose must be tapered
Contraindicated with systemic fungal infections
Avoid live vaccines while taking immunosuppressive doses
Can mask signs of infection and increase infection risk
May raise blood sugar — monitor closely if diabetic
Use caution with NSAIDs (increased GI bleeding risk)
Tell your provider about all medications; many drugs interact (e.g., CYP3A4 inhibitors)
Tell your prescriber about all medications, supplements, and health conditions before starting dexamethasone 4mg.
Sources & References
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