Last updated: May 26, 2026
ecutive summary
Isoproterenol hydrochloride is a historical, sterile injectable beta-agonist used for bradycardia and related emergent indications. Supplier coverage in the US is typically anchored by generic sterile manufacturers rather than branded specialty plants. Public procurement and FDA-registration signals indicate a small number of suppliers with ongoing capability for sterile bulk drug substance, aseptic filling, and compliance with current cGMP sterile expectations.
No authoritative, current supplier list can be produced from the information available in this chat (no product strength/formulation, market geography, dosage form listing, or current NDC/labeler identifiers).
Isoproterenol hydrochloride suppliers: Which companies manufacture the injectable drug in the US?
A complete supplier map depends on linking:
- the exact dosage form (injectable solution vs other presentations),
- strength (mg/mL),
- the specific labeler via NDC,
- the route of administration (IV/IM),
- and whether the product is distributed as a finished dosage form by a labeler or manufactured by a contract manufacturer (CMO).
Featured-snippet answer: A reliable supplier list requires NDC-linked manufacturer/labeler identification from FDA sources, not general chemical sourcing.
What to look for to identify true suppliers
- FDA Drug Establishment Registration and Listing (DERL) for sterile manufacturing sites.
- Orange Book listing (if applicable) for branded/generic status and sponsor/holder.
- NDC directory for labeler and packaging configuration.
- Generic approval history (ANDA) when present, to tie the “applicant/holder” to manufacturing capability.
Common supplier structure for sterile generics
- Labelers: marketing authorization holders and distributors.
- Manufacturers: sterile fill-finish and packaging plants.
- Drug substance supplier (when used): may be separate from fill-finish.
How many isoproterenol hydrochloride suppliers exist for injections?
No complete, current count can be stated without a dataset of NDCs or FDA-registered labelers for the relevant strength and presentation.
Why counts are volatile
- Sterile injectables often have discontinuations, temporary supply gaps, and plant-level outages.
- Products can be held at distributor warehouses or marketed intermittently by different labelers.
- Reformulation is uncommon, but manufacturing sites and labelers can change.
Which contract manufacturing organizations (CMOs) make isoproterenol hydrochloride sterile injectables?
A defensible CMO list requires NDC- and facility-level reconciliation. In sterile injectables, the CMO is frequently not visible from commercial catalogs alone.
CMO identification signals
- FDA site listings tied to the dosage form (sterile solution).
- Inspection history for the specific dosage form category.
- Public submissions referenced in ANDAs or drug master files.
What are the latest FDA-registered manufacturing sites for isoproterenol hydrochloride?
A current “latest” list requires DERL lookups and mapping to the correct dosage form and labeler. That cannot be produced from this chat.
How FDA registration is typically structured
- Establishment registration number per facility.
- Product-specific listing categories (sterile solution vs other).
- Ownership or operator can differ from labeler.
Which suppliers provide isoproterenol hydrochloride API vs finished sterile injection?
For many historical injectables, sourcing splits into:
- API chemical manufacturers supplying bulk drug substance.
- Sterile fill-finish manufacturers producing the injectable solution.
Featured-snippet answer: API suppliers and finished-dose suppliers are rarely the same entity for sterile products.
API supply chain characteristics
- API often sourced from chemical specialty manufacturers.
- Finished sterile injectables require aseptic processing capability, container-closure qualification, and sterility assurance.
Isoproterenol hydrochloride sourcing: What quality documentation do suppliers provide?
For sterile injectables, buyers typically require:
- Certificates of Analysis (CoA) per lot.
- GMP compliance statements tied to registered facilities.
- Sterility assurance documentation.
- Compliance with compendial standards (USP) if applicable to the labeled specification.
No supplier list can be paired with these documents without the supplier identities.
What does the supply chain risk look like for isoproterenol hydrochloride injections?
Supply risk for legacy sterile injectables is driven by:
- limited number of sterile fill-finish capable plants,
- dependence on single-use commodity components,
- sterilization and container-closure constraints,
- and short product lifecycles due to low-margin economics.
A risk rating per supplier requires an actual supplier roster.
How does isoproterenol hydrochloride compare with alternative beta-agonist injectable suppliers (e.g., epinephrine, norepinephrine)?
Market substitution in emergencies can redirect procurement even if isoproterenol is available.
- Alternative vasopressors and inotropes often have broader supplier depth.
- Substitution may be limited by indication, dosing, and clinical protocols.
A comparative supplier analysis requires procurement and NDC-level data for each alternative.
Key Takeaways
- Isoproterenol hydrochloride supplier identification must be NDC- and FDA-linked to separate true sterile manufacturers from distributors.
- A current, complete supplier list cannot be generated from the information in this chat.
- Supplier risk for sterile injectables typically concentrates around a small number of fill-finish capable plants.
FAQs
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How do I verify whether a supplier manufactures isoproterenol hydrochloride sterile injectable vs only distributes it?
Use FDA DERL facility registration linked to the exact dosage form and NDC labeler.
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Do isoproterenol hydrochloride suppliers vary by strength or container size?
Yes. Different NDC presentations can map to different labelers and potentially different manufacturing sites.
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Where can I find the most reliable current supplier information for isoproterenol hydrochloride injections?
FDA Orange Book (if listed), FDA DERL, and the NDC Directory for the exact product.
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Can API suppliers replace finished-dose suppliers for hospital procurement?
Hospitals generally require finished sterile dosage forms with sterility assurance and validated container-closure systems.
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What documents should be required from any isoproterenol hydrochloride injectable supplier?
Lot-specific CoA, GMP compliance evidence tied to the registered sterile facility, and sterility/quality release documentation per the labeled specification.
References
No sources were cited because no FDA/NDC/Orange Book or procurement-identifying data was provided in the prompt.
