dexamethasone vs methylprednisolone
PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.
Side-by-side comparison of dexamethasone and methylprednisolone. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Decadron
Medrol
Dexamethasone (Decadron) is a corticosteroid medicine. It helps reduce inflammation and suppress the immune system.
Methylprednisolone (Medrol) is a corticosteroid medicine. It reduces inflammation and affects the immune system.
This medicine treats many conditions, including allergies, skin problems, and breathing issues. It can also help with certain cancers, hormone problems, and nervous system disorders. Dexamethasone can also be used for short-term relief of arthritis and other joint problems.
This medicine can treat many conditions. It can help with allergies, skin problems, and hormone imbalances. It can also help with gut and blood disorders.
Dexamethasone works by decreasing inflammation in the body. It also changes how your immune system works. This can help reduce symptoms of various conditions.
Methylprednisolone reduces inflammation in the body. It also changes how your immune system works. This can help control symptoms of different diseases.
- • Increased appetite
- • Weight gain
- • Fluid retention
- • Mood swings
- • Insomnia
No common side effects listed.
- Fatigue 16,525
- Diarrhoea 16,515
- Plasma Cell Myeloma 13,768
- Nausea 13,495
- Pneumonia 13,291
- Fatigue 7,793
- Pain 7,274
- Nausea 7,213
- Headache 7,058
- Pyrexia 6,883
If you have a systemic fungal infection, you should not take this medicine. Long-term use can also make it harder for your body to respond to stress.
This medicine is not for injection into the spine. This can cause serious medical problems. Do not take this medicine if you have a fungal infection, unless it's a localized joint condition.
Talk to your doctor if you are pregnant or breastfeeding before taking this medicine. Dexamethasone may harm an unborn baby. It can also pass into breast milk.
Tell your doctor if you are pregnant or plan to become pregnant. This medicine may harm your unborn baby. Talk to your doctor about the risks and benefits.
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How to Read This dexamethasone vs methylprednisolone Comparison
dexamethasone is classified in the Corticosteroid drug class, while methylprednisolone sits within the Corticosteroid class. Because both drugs share the same classification, they are often considered interchangeable in theory, but clinical outcomes rarely track that cleanly. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, dexamethasone has 73,594 submissions while methylprednisolone has 36,221. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for dexamethasone or methylprednisolone.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.