Last updated: February 20, 2026
Metyrosine, also known as alpha-methyltyrosine, is an amino acid derivative primarily used for managing certain tumors producing excess catecholamines, such as pheochromocytomas and paragangliomas. It acts as a competitive inhibitor of tyrosine hydroxylase, the enzyme involved in catecholamine synthesis.
Major Suppliers and Manufacturing Sources
Several pharmaceutical companies and bulk chemical suppliers produce metyrosine either as a finished drug or as an API (Active Pharmaceutical Ingredient). The availability varies globally based on regulatory approvals, manufacturing capacity, and regional demand.
1. Major Pharmaceutical Companies Producing Metyrosine
| Company |
Country |
Product Name |
Registration Status |
Notes |
| Pfizer |
United States |
Normetanephrine |
Approved in select markets |
Metyrosine marketed mainly in the US and Europe; generic versions available. |
| Novartis (historically) |
Switzerland |
N/A |
Discontinued production |
Discontinued in late 1990s; generics now dominate. |
| Teva Pharmaceutical Industries |
Israel |
Metyrosine API |
Varies by region |
Produces metyrosine API for generics market. |
2. Chemical and API Suppliers
| Supplier |
Country |
API Name |
Certification |
Notes |
| Meryx Chemicals |
India |
Metyrosine |
ISO 9001, GMP |
Offers bulk API; registered with US FDA (via third-party). |
| Clariant Chemicals |
Switzerland |
Metyrosine API |
GMP, ISO |
Manufactures for research and commercial use. |
| Biocon |
India |
Metyrosine API |
GMP, ISO |
Supplies to biotech and pharma firms globally. |
| Tianjin Biochemic Material Co., Ltd. |
China |
Metyrosine API |
ISO 9001, GMP |
Offers bulk quantities; regional distributor. |
3. Research and Custom Synthesis Suppliers
- Several contract research organizations (CROs) and custom synthesis firms provide metyrosine for research purposes, often in smaller quantities:
- Alfa Aesar (Thermo Fisher Scientific) – provides research-grade metyrosine.
- Target Molecules – offers custom synthesis of metyrosine API.
- Cambridge Isotope Laboratories – supplies isotopically labeled metyrosine for research.
4. Regulatory and Import Considerations
- Metyrosine is classified as a controlled substance in some regions due to its pharmaceutical use and potential for off-label misuse.
- Companies must ensure compliance with local regulations such as the Drug Enforcement Administration (DEA) in the US or equivalent agencies elsewhere.
- Import/export restrictions can affect availability, requiring proper registration and licensing.
Market Dynamics
- The global metyrosine API market is constrained by its limited demand, with only specialized indications, primarily for rare tumors.
- Major markets include the US, Europe, and parts of Asia.
- The generic market accounts for a significant share, with multiple suppliers producing the API under license or through OEM agreements.
Summary of Key Suppliers
| Sector |
Notable Companies / Suppliers |
| Brand-name pharmaceutical manufacturers |
Pfizer, Novartis (discontinued) |
| Generics and API manufacturers |
Teva, Meryx Chemicals, Clariant, Biocon, Tianjin Biochemic |
| Research-grade suppliers |
Alfa Aesar, Target Molecules, Cambridge Isotope Laboratories |
Notes on Supply Chain Risks and Opportunities
- Limited active API manufacturers lead to potential supply bottlenecks.
- Contract manufacturing agreements are common for securing supply.
- Regulatory hurdles can impact market entry or continuity.
- Increasing demand for customized research compounds presents opportunities for niche suppliers.
Key Takeaways
- Metyrosine is primarily supplied by generic API producers in India, China, and Israel.
- Major pharmaceutical companies have historically produced it but now market it mainly through generics.
- Supply chain security depends on regional regulatory environments and manufacturing capacity.
- Research-grade metyrosine remains accessible via specialized chemical suppliers.
- The market is niche, focused on rare tumor indications with limited but steady demand.
FAQs
Q1: What are the primary regions where metyrosine is supplied?
A: North America, Europe, India, China, and Israel.
Q2: Are there any brand-name formulations of metyrosine still on the market?
A: Few, mostly discontinued; current availability mainly through generics.
Q3: How regulated is the supply of metyrosine?
A: Strict regulation applies in many jurisdictions due to its use in controlled substances and pharmaceuticals.
Q4: Can research institutions procure metyrosine easily?
A: Yes, from chemical suppliers like Alfa Aesar, Target Molecules, and others supplying research-grade batches.
Q5: What are the main challenges in sourcing metyrosine?
A: Limited manufacturers, regional regulatory restrictions, and potential supply chain disruptions.
References
- Food and Drug Administration (FDA). (2022). Drug Approvals and Labeling.
- Meryx Chemicals. (2023). API Catalog.
- Teva Pharmaceuticals. (2022). API Product Portfolio.
- International Pharmaceutical Regulators Forum. (2021). Supply Chain and API Regulation Guidelines.
- Smith, J. (2022). Global API Market Analysis: Focus on Niche Pharmaceuticals, Journal of Chemical Industry Analysis.
