Metadoxine API: uses, applications and sourcing considerations

A short brief on the hepatoprotective API and its formulation routes.

What Metadoxine is used for

Metadoxine (CAS 74536-44-0) is a pyridoxine-pyrrolidone carboxylate compound with hepatoprotective properties, formulated in medicines that support acetaldehyde metabolism, commonly in the context of alcohol-related liver conditions. Full specification and sourcing detail is available on our Metadoxine API product page.

The salt form and why it matters

Metadoxine is typically handled as its pyrrolidone carboxylate salt form — confirm which salt form and corresponding molecular weight basis a quoted specification refers to, since assay and dosing calculations are salt-form-dependent, and a mismatch here is a common, avoidable filing error.

Hygroscopicity changes handling and storage

Compounds in this structural class can be moisture-sensitive, which affects both storage conditions and how the material behaves during formulation processing (e.g., blending, granulation). Ask your supplier directly about hygroscopicity data and recommended storage conditions rather than assuming standard ambient storage is adequate.

Why sourcing for a hepatoprotective formulation warrants extra documentation scrutiny

Because Metadoxine formulations are typically used in a therapeutic context where patients may already have compromised hepatic function, buyers should hold suppliers to a particularly rigorous documentation standard — a complete, batch-specific Certificate of Analysis, confirmed GMP status, and (for regulated export markets) confirmed DMF or equivalent filing status. See our GMP compliance checklist and plain-English DMF guide for exactly what to verify on each.

Grade and documentation to request before the first PO

• Confirmed salt form and molecular-weight basis matching your dosing calculations
• Hygroscopicity data and recommended storage conditions
• Batch-specific Certificate of Analysis
• Current GMP certification type and scope
• DMF or equivalent filing status if sourcing for a regulated export market

Sourcing alongside other gastro & hepatic APIs

If you’re formulating across a gastro/hepatic product line, our Itopride Hydrochloride specifications guide covers the same depth of documentation guidance for a gastroprokinetic API commonly sourced by the same buyers.

A short checklist before you commit

• Salt form and molecular-weight basis confirmed against your dosing calculations
• Hygroscopicity/storage data requested and reviewed
• Sample CoA reviewed, batch-specific rather than generic
• GMP and (if applicable) DMF status confirmed for your destination market

Frequently asked questions

What salt form is Metadoxine typically supplied as? It’s commonly handled as its pyrrolidone carboxylate salt — confirm this explicitly with any supplier, since assay and dosing calculations depend on the exact salt form and molecular-weight basis quoted.

Does Metadoxine require any special storage conditions? Metadoxine is hygroscopic, so protection from moisture matters in particular — it should be stored in a tightly closed container, protected from light and moisture, at controlled room temperature.

Why does documentation matter more for a hepatoprotective compound like this one? Given the therapeutic context these formulations are typically used in, buyers should apply an especially rigorous documentation standard — full batch-specific CoA, confirmed GMP status, and confirmed regulatory filing status for the destination market.

Is Metadoxine available as a standard catalogue product? Yes — see our API Manufacturing page for how standard sourcing works.