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Fosphenytoin sodium bulk supplier for pharma manufacturers

Fosphenytoin Sodium Suppliers & Bulk Manufacturers

Available Forms: Injection

Available Strengths: 50 mg

Reference Brands: Cerebyx (USA)

Category: Neurology

Fosphenytoin sodium is available in Injection and strengths such as 50 mg. Sourced from GMP-certified and ISO-compliant manufacturers, this API meets global pharmacopeia standards (USP/EP/JP as applicable). Ideal for pharmaceutical formulation and commercial manufacturing, Fosphenytoin sodium is supplied in bulk quantities with complete regulatory support including DMF, COA, and MSDS.

Technical Specifications & Supply Details
Lead Time 7 to 60 days (depending on batch size & schedule)
MOQ As per manufacturer’s batch size
COA Available with every batch
Regulatory Dossier / DMF Available upon request
Export Documentation FSC, COA, Manufacturing License, Product Permission
Standards IP, BP, USP
Certifications WHO-GMP, EU-GMP, USFDA (as applicable)

Fosphenytoin sodium can be exported to over 30 countries across Asia, Africa, Europe, and Latin America. Flexible packaging, competitive pricing, and a verified supplier network make Pharmatradz a trusted sourcing partner for pharmaceutical companies and contract manufacturers worldwide.

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📘 Sourcing Guide

Product Description:

Fosphenytoin sodium is a water-soluble phosphate ester prodrug of phenytoin developed for intravenous and intramuscular administration. It is rapidly converted to phenytoin in the body and is used in the acute management of seizure disorders, particularly convulsive status epilepticus. Compared to intravenous phenytoin, fosphenytoin offers improved safety and tolerability, with a reduced risk of local tissue injury and cardiovascular complications.

In the United States, fosphenytoin sodium is approved for short-term use, typically for five days or fewer, in the treatment of epilepsy when oral or standard phenytoin administration is not feasible or is contraindicated. This includes clinical situations such as status epilepticus, repeated or cluster seizures, endotracheal intubation, persistent vomiting, or cases where the patient is unresponsive or unable to swallow.

Due to its rapid onset of action and flexible administration routes, fosphenytoin sodium is widely utilized in emergency and critical care settings. Its predictable conversion to phenytoin allows effective seizure control while providing enhanced safety during acute neurological emergencies.

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Frequently Asked Questions


Fosphenytoin sodium is used for the treatment of status epilepticus and other acute seizure conditions. It is also used for short-term seizure prophylaxis in neurosurgical patients when oral phenytoin administration is not possible.


Fosphenytoin sodium is a synthetic phosphate ester prodrug of phenytoin. It is designed to be water-soluble and is rapidly converted to phenytoin after intravenous or intramuscular administration.


Fosphenytoin sodium is marketed under trade names such as Cerebyx in the United States and Pro-Epanutin in the European Union and the United Kingdom.


Fosphenytoin sodium was originally developed and marketed by Pfizer. It is also manufactured and supplied by other pharmaceutical companies as generic formulations in various regions.


The generic name is fosphenytoin sodium.


The brand names are Cerebyx and Pro-Epanutin.


Fosphenytoin sodium is manufactured in GMP-approved pharmaceutical facilities in the USA and Europe, with production and distribution aligned to regional regulatory approvals.

Yes, Fosphenytoin sodium is available with DMF and other regulatory documents such as COA and MSDS. These can be provided upon request for qualified buyers.

Absolutely. Sample requests are accepted for formulation trials and quality checks. Please submit an enquiry to initiate the process.

Our manufacturing partners are GMP-certified and comply with ISO and WHO standards, ensuring global quality benchmarks.

Lead times vary based on quantity and destination, but most orders are fulfilled within 1–3 weeks. Express shipping options are available.

Yes, Fosphenytoin sodium is exported to over 30 countries across Asia, Africa, Europe, and Latin America. We support documentation for customs and regulatory clearance.

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