Decmax
✅ Reduces inflammation & swelling
✅ Manages allergic reactions
✅ Relieves pain and discomfort
✅ Treats skin conditions
✅ Improves breathing
Decmax contains Dexamethasone.
✓ Медицински преглед от Morgan Ellis — Фармацевтичен изследовател · 8 години опит · Последен преглед: май 2026 г.
⚡ Quick Answer — What is Decmax?
Decmax е dexamethasone 4 mg oral tablet — the standard higher-strength adult dose of this potent long-acting synthetic corticosteroid. It is used for moderate-to-severe inflammatory, autoimmune, allergic, and malignant conditions: cerebral oedema, chemotherapy anti-emetic cover, severe COVID-19, severe asthma flares, autoimmune disease flares, and palliative care. Typical dose is 4 to 16 mg daily depending on indication, taken with food, preferably in the morning.
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Decmax 4 mg is an oral dexamethasone tablet manufactured by Cadila/Zydus. The 4 mg strength is practical for the majority of adult indications where a moderate-to-high dose is needed — 4 mg is the standard single dose for cerebral oedema, anti-emetic prophylaxis in chemotherapy, and acute inflammatory conditions.
What Is Decmax Used For?
- Cerebral oedema from brain tumours (primary or metastatic) — typically 4 mg four times daily, tapering after symptoms improve
- Anti-emetic cover in chemotherapy — 8–12 mg before high-emetogenic chemotherapy, typically with a 5-HT3 antagonist
- Severe COVID-19 requiring supplemental oxygen or mechanical ventilation — 6 mg (1½ tablets) daily for up to 10 days (RECOVERY trial regimen)
- Acute severe asthma — single 8–12 mg dose in the emergency department
- Severe COPD exacerbation — alternative to oral prednisolone
- Severe allergic reactions
- Autoimmune disease flares — RA, SLE, vasculitis, polymyalgia rheumatica, inflammatory bowel disease
- Bacterial meningitis — adjunct to antibiotic therapy
- Antenatal fetal lung maturation — specialist obstetric use
- Haematological malignancy — part of chemotherapy protocols (ALL, multiple myeloma)
- Palliative care — appetite stimulation, anti-emetic, anti-inflammatory, reduction of tumour-related symptoms
How Does Dexamethasone Work?
Dexamethasone binds to intracellular glucocorticoid receptors with high affinity. The activated receptor translocates to the nucleus and modulates the transcription of hundreds of genes involved in inflammation, immune function, and metabolism. Net clinical effect: broad anti-inflammatory and immunosuppressive action, reduction of vascular permeability (useful in cerebral oedema), attenuation of emetic signals in the area postrema (useful in chemotherapy-induced nausea), and modulation of the cytokine storm seen in severe COVID-19.
Decmax Dosing
- Cerebral oedema: 16 mg/day in 4 divided doses (4 mg QDS), tapering after 3–5 days
- Chemotherapy anti-emetic: 8–12 mg (2–3 tablets) once before chemotherapy; continued for 2–4 days
- Severe COVID-19: 6 mg once daily for up to 10 days
- Severe asthma flare: 8–12 mg as a single or two-dose course
- Autoimmune flare: 4–16 mg/day in divided doses, then taper
- Take with food, preferably in the morning
Corticosteroid Potency and Equivalence
Different corticosteroids differ mainly in potency, duration of action, and mineralocorticoid (salt-retaining) activity. The table below gives the clinically useful equivalence — it lets you translate a dose of one steroid into the equivalent dose of another.
| Corticosteroid | Glucocorticoid potency | Equivalent dose | Mineralocorticoid | Duration |
|---|---|---|---|---|
| Hydrocortisone | 1 (reference) | 20 mg | Substantial | 8–12 h |
| Prednisolone | 4 | 5 mg | Low | 12–36 h |
| Methylprednisolone | 5 | 4 mg | Minimal | 12–36 h |
| Dexamethasone | 25–30 | 0.75 mg | None | 36–54 h |
| Betamethasone | 25–30 | 0.75 mg | None | 36–54 h |
Who Should Not Take Decmax?
- Systemic fungal infection (other than as replacement therapy in adrenal insufficiency)
- Live vaccines during immunosuppressive doses (see specialist before BCG, MMR, yellow fever, varicella, oral typhoid)
- Active untreated bacterial infection (start antibiotics first)
- Active tuberculosis without anti-TB cover
- Known hypersensitivity to the active molecule or any excipient
- Use with caution in: diabetes mellitus, congestive heart failure, hypertension, osteoporosis, peptic ulcer, psychiatric disorders, glaucoma, herpes simplex ophthalmicus
- Pregnancy: use only if clearly needed — prednisolone and hydrocortisone cross the placenta less than dexamethasone/betamethasone, which are preferred when a fetal effect is intended (e.g. lung maturation)
Side Effects of Corticosteroids
Corticosteroid side effects are dose- and duration-dependent. Short courses (< 2 weeks) at moderate doses are usually well tolerated. Longer or higher-dose therapy produces the classic “Cushingoid” profile.
Short-term (first 1–2 weeks):
- Insomnia, anxiety, euphoria, irritability — particularly at doses > 20 mg prednisolone-equivalent
- Increased appetite, weight gain
- Raised blood glucose (especially in diabetes)
- Fluid retention, mild ankle swelling
- Heartburn, dyspepsia
- Hypertension — especially with higher mineralocorticoid activity (hydrocortisone, fludrocortisone)
Longer-term (weeks to months):
- Osteoporosis and vertebral fractures
- Muscle wasting and proximal myopathy
- Skin thinning, easy bruising, striae, impaired wound healing
- Cushingoid appearance — moon face, central obesity, buffalo hump
- Cataracts, glaucoma
- Infection susceptibility (bacterial, viral, fungal, parasitic)
- Avascular necrosis of the femoral head
- HPA-axis suppression — risk of adrenal crisis on abrupt withdrawal
- Psychiatric effects — depression, mania, psychosis
- Peptic ulcer, especially when combined with NSAIDs
Rare but serious: steroid psychosis, pancreatitis, posterior subcapsular cataract, severe osteonecrosis.
Never stop corticosteroids abruptly after a prolonged course. Any course longer than 2–3 weeks, or any dose above a physiological replacement level (approximately 7.5 mg prednisolone or 40 mg hydrocortisone per day) suppresses the hypothalamic-pituitary-adrenal axis. Stopping suddenly can trigger a life-threatening adrenal crisis — nausea, vomiting, low blood pressure, shock. Courses longer than 3 weeks must be tapered down, typically over 1–4 weeks depending on duration and dose. Carry a steroid warning card during prolonged treatment and inform any doctor, dentist, or surgeon you see about your steroid use.
Ordering & Delivery
MedsBase offers worldwide shipping on every order. Orders are dispatched in discreet packaging and arrive in branded manufacturer packs. If your preferred pack size is out of stock, contact customer support for an ETA.
Medical disclaimer. The information on this page is provided for general education only. It is not a substitute for advice from your own doctor or pharmacist. Talk to a qualified healthcare professional before starting, stopping, or changing therapy.
Често задавани въпроси
What is Decmax used for?
Decmax (dexamethasone 4 mg) is used for cerebral oedema, chemotherapy anti-emetic cover, severe COVID-19, severe acute asthma, severe allergic reactions, autoimmune disease flares, bacterial meningitis adjunct therapy, antenatal fetal lung maturation, haematological malignancy protocols, and palliative care.
Is Decmax the same as Dexona or Decdan?
Same molecule (dexamethasone). Decmax is 4 mg; Dexona and Decdan are 0.5 mg. Decmax is used for acute and moderate-to-severe conditions; Dexona/Decdan are used for low-dose maintenance, fine titration, and paediatric/diagnostic doses.
Is Decmax the steroid used in severe COVID-19?
Yes. The RECOVERY trial (2020) established dexamethasone 6 mg daily for up to 10 days as standard of care in COVID-19 patients requiring supplemental oxygen or ventilation. This is one and a half Decmax 4 mg tablets per day.
How long does Decmax take to work?
Peak plasma level is reached in 1–2 hours. Clinical effect on inflammation begins within 6–12 hours; effect on nausea and cerebral oedema can be seen within 2–4 hours.
Should I take Decmax with food?
Yes — always with food or milk, preferably in the morning. Food reduces gastric irritation; morning dosing mimics natural cortisol rhythm and reduces HPA suppression.
How long can I take Decmax?
Duration depends entirely on the indication. For cerebral oedema and chemotherapy cover, courses are often just days. For COVID-19, up to 10 days. For autoimmune flares, weeks with a taper. Courses longer than 2–3 weeks need a formal taper to avoid adrenal crisis.
Can I stop Decmax suddenly?
Courses under 2 weeks can usually be stopped without tapering. Courses of 3 weeks or more must be tapered under medical supervision.
Will Decmax cause weight gain?
Short courses rarely cause meaningful weight change. Prolonged or high-dose therapy can cause fluid retention, increased appetite, and Cushingoid fat redistribution.
Can I drink alcohol while on Decmax?
Light drinking is usually tolerated. Avoid heavy drinking — it can worsen gastric irritation, insomnia, and blood-sugar swings.
Can Decmax be used in diabetes?
Yes, with close blood-glucose monitoring. Dexamethasone raises blood sugar; insulin or oral hypoglycaemic doses may need adjustment.
Is Decmax safe in pregnancy?
For maternal disease, prednisolone is usually preferred because dexamethasone crosses the placenta more readily. Dexamethasone is deliberately used antenatally for fetal lung maturation in threatened preterm delivery.
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Decmax
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