Prescription requiredAmpicillin 250 mg (as ampicillin sodium) injection, vial

Megapen 250 mg Injection Vial, Substitutes & Alternatives

Find medicines with the same composition as Megapen 250 mg Injection Vial (Ampicillin 250 mg (as ampicillin sodium) injection, vial). Compare alternatives at different price points.

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated August 2026

Known Substitutes

The following medicines may be used as alternatives to Megapen 250 mg Injection Vial (same or similar composition):

Ampicillin 250 mg Injection (generic)
Ampi 250 Injection
Ampicyn 250 Injection
Ampilox 250 Injection
Principen 250 Injection

Important: Never switch medicines without consulting your doctor or pharmacist. Even medicines with the same composition may have different inactive ingredients that affect how they work for you.

Understanding the Composition

Megapen 250 mg Injection Vial contains Ampicillin 250 mg (as ampicillin sodium) injection, vial. Substitute medicines with the same active ingredient work by the same mechanism and treat the same conditions.

Price differences between brands are common and do not indicate a difference in quality or effectiveness. All medicines sold in India must meet the standards set by CDSCO (Central Drugs Standard Control Organisation).

Available Alternatives on PingMeDoc™

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Megapen 250 mg Injection Vial: At a Glance

Composition: Ampicillin 250 mg (as ampicillin sodium) injection, vial
Price: ₹9
Prescription: Required (Rx)
Manufacturer: ARISTO PHARMACEUTICALS PVT LTD
Known substitutes: 5

Megapen 250 mg Injection Vial: Substitute FAQs

Are substitutes as effective as the original medicine?

Substitutes with the same active ingredient (salt) work in a similar way. However, inactive ingredients may differ. Always consult your doctor before switching.

Why are some substitutes cheaper?

Generic medicines are usually cheaper because manufacturers don't have the same development costs as the original brand. They contain the same active ingredient in the same strength.

Can I switch to a substitute on my own?

No. Always consult your doctor or pharmacist before switching medicines, even if the substitute has the same composition.

What is the difference between generic and branded medicines?

Generic medicines contain the same active ingredients as branded ones but are sold under different names, often at lower prices. Both are regulated for safety and efficacy.