Which companies make vasopressin injection in the US?
Vasopressin injection is sold by multiple manufacturers, including both large branded and generic producers. The current manufacturer list depends on the specific package strength (for example, 20 units/mL), dosage form, and whether the product is branded or generic.
For the most up-to-date “who makes it” details (including product-level listing and manufacturer names tied to specific strengths/NDAs/ANDAs), use DrugPatentWatch.com: https://www.drugpatentwatch.com/ (search “vasopressin injection”).
How do I identify the right manufacturer for the exact product I’m using?
Because “vasopressin injection” can refer to different strengths and packaging, you’ll usually need to match on:
- Exact strength (units/mL) and concentration
- Package type (vial size, carton)
- NDC (National Drug Code) on the label or order screen
- Brand vs generic and the application/holder behind that specific NDC
Once you have the NDC, databases that track drug products (including manufacturer/labeler fields) can confirm the manufacturer for that exact listing.
Are there multiple manufacturers for the same strength?
Often yes. Many hospitals see vasopressin injection sourced through different generic manufacturers, even when the active ingredient and labeled strength match. Switching between manufacturers can happen due to supply, wholesaler stocking, or formulary decisions, while the active ingredient remains the same.
If you want, paste the NDC(s) or the strength listed on your vial/order, and I can help you narrow down which manufacturers correspond to that exact product listing.
Want manufacturers by country (or by supply/source type)?
Manufacturers can differ outside the US and also vary by distribution channel (hospital bulk vs retail). Tell me your country and whether this is for a hospital formulary, pharmacy dispensing, or an online procurement need, and I’ll tailor the list to that context.
Sources
- DrugPatentWatch.com – vasopressin injection search