Welcome to Willow Birch

The Premier Source for Bulk/Specialty API’s in the USA

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API's

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About Willow birch

About Us

Headquartered in Taylor, Mississippi, Willow Birch Pharma, Inc. stands as a prominent player in the pharmaceutical industry, holding DEA Licensing and operating with licenses in all 50 states. As a leading supplier of active pharmaceutical ingredients (APIs) to Compounding Pharmacies across North America, Willow Birch sets the standard for quality and reliability.

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GMP Certified Manufacturers

Our high quality active pharmaceutical ingredients are from FDA registered, GMP certified manufacturers. All API’s have valid NDC#’s registered with the FDA.

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Quality Standards

We ensure that each product meets the highest quality standard and is priced competitively. We provide unparalleled service and regulatory support to our clients located in the US.

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Bulk API’s

With Willow Birch’s global network of pharmaceutical manufacturing and distribution partners, our clients will see firsthand that we procure materials that are manufactured to the highest standards of quality and provided with around the clock regulatory support.

our promise

The Willow Birch Promise

We are committed to the quality of our API’s and will guarantee they meet the
standards your company would require, while at the same time cutting your costs significantly.
All items we supply are from GMP, FDA registered manufacturers and have an NDC registered
with the FDA. In addition, many of our manufacturers have DMFs for the products they supply to
us and we are happy to share the open part of the DMF with our customers.

Check Out Our Monthly Specials

A list of active pharmaceutical ingredients (APIs) for veterinary use from Willow Birch Pharma, displayed in three columns on a white and green background.

API’S FOR VETERINARY USE

A product list from Willow Birch listing various injection grade compounds, with check marks indicating availability; company logo and contact info are shown at the top and bottom.

NEW API ARRIVALS

List of injectable and ophthalmic grade active pharmaceutical ingredients (APIs) offered by Willow Birch Pharma, displayed on a white and green promotional flyer.

INJECTABLE / OPHTHALMIC GRADE

A list of pharmaceutical active ingredients with their chemical names and CAS numbers, presented in three columns on a white and green Willow Birch Pharma flyer.

2025 API LIST