Last updated: April 25, 2026
Who Supplies Cidofovir (API) and Finished Product?
CIDOFOVIR is supplied through a mix of (1) branded originators and (2) generic API and finished-dosage manufacturers. The supplier landscape is anchored by the availability of cidofovir (API) from generic producers and the historical supply of Vistide (cidofovir injection) for the US market.
What are the main supplier categories for cidofovir?
1) Finished product suppliers (branded/marketed)
- Vistide (cidofovir injection) is the reference branded product, historically marketed for use in oncology and virology indications.
2) API suppliers (generic)
- Cidofovir API is produced and distributed by multiple generic API manufacturers and specialty chemical suppliers, typically sold to distributors, labelers, and contract manufacturers.
3) Distribution channels
- API commonly moves through authorized distributors and specialty chemical procurement networks rather than direct sourcing from the end user.
What finished-product brand exists for cidofovir?
Which marketed product is the benchmark?
| Product |
Active ingredient |
Dosage form |
Market role |
| Vistide |
Cidofovir |
Injection |
Reference branded product |
Source: FDA label for Vistide (cidofovir injection). [1]
Which companies are known suppliers of cidofovir (API and/or finished product) in practice?
What supplier names appear consistently in the cidofovir supply chain?
CIDOFOVIR supply is dominated by generic API sources and specialty distribution. Public-facing supplier lists vary by jurisdiction and update cadence, so the most stable identifiers for investor-grade sourcing are regulatory labels, submission references, and FDA-tracked product details.
At the API level, cidofovir suppliers are typically listed in:
- Drug master files (DMFs) (where applicable),
- ANDA submission references (if a generic product exists),
- marketed product labels and regulated distribution documentation.
The only universally verifiable “supplier” from a single public regulatory anchor in this dataset is the branded reference product identity via the FDA label.
What does the regulatory record indicate about manufacturer identity?
Where can manufacturer/supplier identity be confirmed?
The FDA label for Vistide (cidofovir injection) identifies the labeled manufacturer and the product’s regulatory details. This is the most reliable point of reference for “who supplies cidofovir” as a marketed product in the US.
- FDA label: Vistide (cidofovir injection). [1]
What are the key sourcing constraints for cidofovir procurement?
Why supplier availability can be limited
Cidofovir is a specialty antiviral with constrained demand relative to mainstream antivirals. This often leads to:
- fewer active API producers,
- reliance on limited global procurement routes,
- supply continuity driven by specialty distributors and long-term contracts rather than broad retail distribution.
The FDA label provides the therapeutic and handling context that also affects procurement (e.g., injection product handling, administration, and clinical use). [1]
Key Takeaways
- Vistide (cidofovir injection) is the main US reference branded product and provides the clearest regulatory anchor for marketed supply identity. [1]
- Cidofovir API is sourced through generic API producers and specialty distributors, and the most durable supplier verification comes from FDA product labeling and regulatory submissions. [1]
- Practical procurement depends on specialty distribution networks and product-specific handling requirements described in the FDA label. [1]
FAQs
1) Who supplies cidofovir injection in the US?
The US reference branded product is Vistide (cidofovir injection), with manufacturer identity defined on the FDA label. [1]
2) Is cidofovir widely available as generic finished dosage in the US?
The most reliable public confirmation of marketed supply in this dataset is the FDA-labeled Vistide reference product. [1]
3) Who supplies cidofovir API?
Cidofovir API supply is handled by generic API producers and specialty chemical distributors, with formal verification tied to regulatory filings and labeled reference products. [1]
4) What is the best source to confirm a cidofovir supplier?
Use the FDA label for Vistide (cidofovir injection) to confirm the labeled product’s regulated manufacturer identity. [1]
5) What drives cidofovir supply availability?
Cidofovir’s specialty status and injection-product handling requirements shape the supply base and distribution channels, as reflected in the FDA labeling context. [1]
References
[1] U.S. Food and Drug Administration. (n.d.). VISTIDE (cidofovir) injection, for intravenous use (prescribing information). FDA. https://www.accessdata.fda.gov/
