Methylprednisolone acetate 40mg/mL — generic Depo-Medrol — in a 400mg/10mL multi-dose vial. Long-acting depot steroid for joint injections, intralesional scar treatment, and IM administration.
Methylprednisolone acetate — generic Depo-Medrol — is a long-acting steroid that works by staying at the injection site and releasing slowly over days to weeks. That sustained local effect is what makes it the standard steroid for joint injections: one intra-articular injection delivers anti-inflammatory coverage directly to the affected joint for weeks, without the need for repeated doses or systemic steroid exposure. Available in a 400mg/10mL multi-dose vial at 40mg/mL.
| Specification | Detail |
|---|---|
| Active ingredient | Methylprednisolone Acetate |
| Concentration | 40 mg/mL |
| Total per vial | 400 mg / 10 mL multi-dose vial |
| Formulation | Aqueous suspension (depot) |
| Routes | IM, intra-articular, intralesional, soft tissue injection |
| IV use | Absolutely contraindicated — suspension only |
| Storage | Room temperature; protect from freezing |
| Prescription status | Rx only |
To get pricing, check availability, or place an order, click the Request a Quote button or contact our team directly. A valid medical or pharmacy license is required to purchase prescription and injectable products.
This distinction is clinically essential and must be understood before ordering or administering.
| Methylprednisolone Acetate (This product) | Methylprednisolone Sodium Succinate (Solu-Medrol) | |
|---|---|---|
| Salt form | Acetate | Sodium succinate |
| Formulation | Aqueous suspension (insoluble) | Water-soluble powder for reconstitution |
| IV administration | Absolutely contraindicated | Appropriate — standard IV/pulse dose route |
| IM administration | Yes | Yes |
| Intra-articular | Yes — preferred form | Not indicated |
| Duration of action | Prolonged (depot effect — days to weeks) | Short (hours) |
| Onset | Slower local onset | Rapid systemic onset |
| Best for | Joint injections, intralesional, single-dose IM | Acute systemic inflammation, IV protocols, pulse dosing |
Administering the acetate suspension IV is a serious medication error and can cause life-threatening reactions. Any practice carrying both forms must implement clear labeling and storage segregation.
Methylprednisolone acetate is a suspension — it does not dissolve in water and cannot be given intravenously. Administering this product IV is a serious medication error that can cause life-threatening reactions. Only methylprednisolone sodium succinate (Solu-Medrol) is appropriate for IV use. These are different products. Practices stocking both must store and label them separately.
Methylprednisolone is a synthetic steroid that reduces inflammation by blocking the chemical signals that trigger swelling, pain, and immune activity. The acetate ester form is insoluble in water, which is what creates the depot effect — it forms a slow-release reservoir at the injection site rather than absorbing quickly into the bloodstream. This means a single intra-articular injection delivers sustained high local steroid concentration for weeks, with much less systemic exposure than an equivalent oral or IV dose would produce.
| Methylprednisolone Acetate (This product) | Dexamethasone 4mg/mL | |
|---|---|---|
| IV use | Absolutely contraindicated | Yes — appropriate for IV protocols |
| Intra-articular joint injection | Yes — the standard depot agent | Not the preferred choice |
| Duration | Days to weeks (local depot) | 36-54 hours systemic |
| Best for | Joint injections; intralesional scars; IM depot dosing | IV therapy protocols; allergic reactions; nausea management |
The two products serve different needs and are not interchangeable. Both belong in a well-equipped injectable formulary.
| Application | Typical Dose Range |
|---|---|
| Large joints (knee, hip, shoulder) | 20-80 mg |
| Medium joints (elbow, wrist, ankle) | 10-40 mg |
| Small joints | 4-10 mg |
| IM systemic | 40-120 mg |
| Intralesional (keloid/scar) | 20-60 mg per site |
| Soft tissue (bursitis, tendinitis) | 4-30 mg |
All dosing follows the prescribing provider’s clinical protocol.
Pain management and interventional practices: Intra-articular methylprednisolone acetate is a standard first-line treatment for inflammatory joint conditions — osteoarthritis flares, rheumatoid arthritis, bursitis, and tendinitis. A single injection provides sustained symptom relief without requiring repeat dosing in many patients.
Sports medicine and orthopedic-adjacent practices: Joint injection for athletes and active patients with acute inflammatory flares in the shoulder, knee, elbow, or ankle. IM methylprednisolone for acute inflammatory conditions where oral steroids aren’t practical.
Aesthetic and dermatology practices: Intralesional methylprednisolone is a primary treatment for hypertrophic scars and keloids. Repeated injections reduce scar volume and inflammatory activity over several sessions.
Allergy and urgent care practices: IM methylprednisolone for acute allergic reactions, asthma exacerbations, and inflammatory conditions requiring systemic steroid coverage when IV access is not available.
Lidocaine HCl Injection — Lidocaine and methylprednisolone acetate are the standard two-component joint injection combination. Lidocaine provides immediate pain relief while methylprednisolone addresses underlying inflammation. The combination is routinely mixed in the same syringe for intra-articular injection in most joint injection protocols.
Dexamethasone Injection 4mg/mL — The complementary corticosteroid for IV therapy and acute systemic inflammation. Practices that offer both IV therapy protocols and local joint injections stock both — dexamethasone for IV use and methylprednisolone acetate for intra-articular and IM use.
0.9% Sodium Chloride IV Bag — For practices also running IV therapy alongside their injection protocols, normal saline rounds out the injectable clinical toolkit.
Ondansetron Injection — For practices managing acute inflammatory or allergic conditions: nausea management alongside corticosteroid therapy in urgent care and allergy treatment settings.
Not for IV use — absolute: The acetate suspension cannot be given intravenously under any circumstances. Only methylprednisolone sodium succinate (Solu-Medrol) is appropriate for IV administration. Store and label separately from any IV-compatible steroid.
Blood glucose elevation: Methylprednisolone raises blood sugar. Monitor glucose levels in patients with diabetes or metabolic syndrome, especially following higher IM doses.
Adrenal suppression: Even single-dose IM and intra-articular injections can cause temporary adrenal suppression. Patients receiving repeated injections are at greater risk. Do not stop abruptly after extended use.
Infection risk: Steroids suppress immune function. Confirm there is no joint infection before intra-articular injection — injecting a septic joint is a serious complication. Monitor for signs of new infection after administration.
Joint injection frequency: Repeated intra-articular injections over time can contribute to cartilage damage and joint instability. Follow current clinical guidelines for injection intervals.
Injection site changes: Skin thinning, discoloration, and fat loss can occur at the injection site, particularly with intralesional use or if product leaks subcutaneously during injection. Proper technique minimizes this risk.
Live vaccines: Do not administer live vaccines during or immediately following steroid treatment.
For use by or on the order of a licensed healthcare provider.
How do I order, and what quantities are available?
Contact our team directly to place an order or request a quote. We supply a range of quantities depending on the product — reach out for current availability, lead times, and volume pricing. A valid medical license is required to purchase prescription and injectable products.
Can methylprednisolone acetate be given IV?
No. This product is an aqueous suspension and is absolutely contraindicated for intravenous use. Only methylprednisolone sodium succinate (Solu-Medrol) is appropriate for IV administration. Practices stocking both products must maintain clear labeling and separate storage to prevent a medication error.
What is the difference between Depo-Medrol and dexamethasone?
Depo-Medrol (methylprednisolone acetate) is a depot suspension designed for joint injections and local use — it stays at the injection site and releases slowly for days to weeks. Dexamethasone is water-soluble, appropriate for IV therapy and systemic use, and works for 36-54 hours as a single dose. They serve different clinical purposes and both belong in a complete injectable formulary.
How long does a joint injection with methylprednisolone acetate last?
Many patients experience meaningful relief for 4-8 weeks after a single injection, though duration varies by patient, joint, and clinical condition. The depot mechanism delivers sustained local steroid concentration that oral medications cannot replicate.
Is a prescription required?
Yes. Methylprednisolone acetate injection is Rx only, available exclusively to licensed healthcare providers and medical practices.
For use by or on the order of a licensed healthcare provider.
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