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Neostigmine Methylsulfate bulk supplier for pharma manufacturers

Neostigmine Methylsulfate 0.5 mg/mL, 1 mg/ml Suppliers & Bulk Manufacturers

Available Forms: Injection

Available Strengths: 0.5 mg/mL, 1 mg/ml

Reference Brands: Prostigmin (USA), Neostigmine (USA)

Category: Neurology

Neostigmine Methylsulfate is a Neurology product available as Injection in strengths 0.5 mg/mL, 1 mg/ml. It corresponds to the reference brands Prostigmin (USA), Neostigmine (USA). Verified GMP manufacturers and suppliers on PharmaTradz offer it in bulk for import worldwide, with regulatory documentation and dossier support available on request.

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📘 Sourcing Guide

Product Description:

Neostigmine is a medication used to improve neuromuscular function and manage specific medical conditions, marketed under the brand name Bloxiverz and other regional brands. It is commonly used to treat myasthenia gravis, a chronic autoimmune disorder that causes muscle weakness, as well as Ogilvie syndrome, and urinary retention when there is no physical blockage. Additionally, neostigmine is used in anesthesia to reverse the effects of non-depolarizing neuromuscular blocking agents after surgery, helping restore normal muscle function.

Neostigmine works as a reversible cholinesterase inhibitor, increasing the concentration of acetylcholine at the neuromuscular junction. This enhances communication between nerves and muscles, improving muscle contraction and strength. The medication is administered via injection into a vein, muscle, or under the skin, with effects typically appearing within 30 minutes and lasting up to 4 hours.

Neostigmine provides a safe and effective option for clinicians to manage neuromuscular disorders, improve postoperative recovery, and address complications like urinary retention. Its rapid onset and predictable duration make it suitable for both acute interventions and ongoing management under careful medical supervision.

Neostigmine Methylsulfate — third party manufacturing & bulk supply

Neostigmine Methylsulfate 0.5 mg/mL, 1 mg/ml is available through PharmaTradz for wholesale and bulk supply as well as on a third party (contract) manufacturing basis. Buyers sourcing this product generally take one of three routes:

Wholesale / bulk supply Stock or scheduled supply from an existing manufacturer. The fastest route where the product is already registered in your market.
Third party manufacturing Manufactured to your specification and packed under your own brand and label — suits distributors and brand owners building a portfolio in their market.
Dossier licensing Where a CTD, EU-CTD or ACTD dossier exists it can often be licensed for filing in your name, compressing market entry from years to months.

What to include when you enquire

  • Destination market — determines which manufacturers hold the right site-level approvals
  • First order quantity and estimated annual volume
  • Whether you need a registration dossier or the product is already registered
  • Packaging, labelling and language requirements
  • Incoterms and required shelf life

Manufacturers of Neostigmine Methylsulfate listed on PharmaTradz hold site-level approvals across WHO-GMP, EU-GMP, USFDA, ANVISA and TGA, verified at onboarding. Narcotic drugs and controlled substances are supplied strictly against valid import and export permits issued by the competent authorities.

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Frequently Asked Questions


Neostigmine methylsulfate is used to improve neuromuscular transmission in patients with myasthenia gravis and other conditions causing muscle weakness. It is also used to reverse the effects of non-depolarizing neuromuscular blockers after surgery.


Neostigmine methylsulfate is a synthetic reversible cholinesterase inhibitor. It is chemically manufactured and is not derived from natural or biological sources.


Neostigmine methylsulfate is marketed under trade names such as Prostigmin and Neostigmine Methylsulfate Injection.


Neostigmine methylsulfate is manufactured and commercialized by multiple pharmaceutical companies, including Pfizer (Prostigmin) and other authorized generic manufacturers, following US FDA and EU GMP regulations.


The generic name is neostigmine methylsulfate.


The brand names include Prostigmin and Neostigmine Methylsulfate Injection.


Neostigmine methylsulfate is manufactured in facilities compliant with US FDA and EU GMP standards, including production sites in the USA, Europe, and other regulated markets.

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