Linaclotide API manufacturers

Linaclotide is a guanylate cyclase-C agonist for IBS with constipation (Linzess).

9 listed companies hold an active US Type II Drug Master File for Linaclotide API, based in India (3), China (3), Netherlands (1), Switzerland (1), Germany (1). 7 have a regulator record of GMP manufacturing, and 1 carries an open FDA warning letter.

Ordered by score. Scores follow the published rules and are not affected by paid placement. Updated 2026-11-13.

Linaclotide API DMF holders (9)

Source: FDA Drug Master File list. Holding a DMF is a regulatory filing, not an FDA approval.

Auro Peptides Ltd
Sangareddy (near Hyderabad), India
High
GMP

Peptide API subsidiary of Aurobindo Pharma with a plant near Hyderabad. Makes generic peptide APIs and runs GMP contract projects from mg to kg scale.

Model
CDMO
Manufacturer?
Yes
GMP CertifiedIn-House ProductionWholesaleInternational Shipping
GMP

Hyderabad-based MSN Group entity holding US DMFs for 11 peptide APIs, including semaglutide and tirzepatide. MSN runs 27 plants in India, the USA and Indonesia.

Model
CDMO
Manufacturer?
Yes
GMP CertifiedIn-House ProductionWholesaleInternational Shipping
TAPI NL B.V. (TAPI)
Amsterdam, Netherlands
High
GMP

Dutch holding entity of TAPI, Teva's API and CDMO business, with peptide development and GMP production across a global plant network. Holds US DMFs for 9 peptide APIs.

Model
CDMO
Manufacturer?
Yes
GMP CertifiedIn-House ProductionWholesaleInternational Shipping
Hybio Pharmaceutical
Shenzhen, China
High
GMP

Chinese peptide drug manufacturer producing APIs and finished products.

Model
Manufacturer
Manufacturer?
Yes
GMP CertifiedIn-House Production
PolyPeptide Group
Baar, Switzerland (sites in SE, BE, FR, US, IN)
High
GMPCOA

Peptide-focused CDMO running GMP manufacturing sites on three continents.

Model
CDMO
Manufacturer?
Yes
GMP CertifiedIn-House ProductionInternational Shipping
CordenPharma
Germany / Switzerland / USA
High
GMPCOA

European CDMO network with a dedicated peptide, lipid and carbohydrate platform.

Model
CDMO
Manufacturer?
Yes
GMP CertifiedIn-House ProductionInternational Shipping

Suzhou peptide API and formulation maker founded in 2000, flagship of Tianma Pharma Group, offering CRO/CMO/CDMO services. Holds US DMFs for 8 peptide APIs.

Model
CDMO
Manufacturer?
Yes
In-House ProductionWholesaleInternational Shipping

Hangzhou peptide API maker and CDMO founded in 2019, supplying therapeutic and cosmetic peptides. Holds US DMFs for linaclotide, semaglutide and tirzepatide.

Model
CDMO
Manufacturer?
Yes
In-House ProductionWholesaleInternational Shipping
GMP

Mumbai-based generics group that makes APIs and finished medicines. Holds US Type II DMFs for 15 peptide APIs, including GLP-1s and GnRH analogues.

Notice: open regulatory issue
Model
Manufacturer
Manufacturer?
Yes
GMP CertifiedIn-House ProductionWholesaleInternational Shipping

Other peptide APIs

Related

Frequently asked questions

Who manufactures Linaclotide API?

Companies holding active US DMFs for Linaclotide include Auro Peptides Ltd, MSN Life Sciences Private Ltd (MSN Group), TAPI NL B.V. (TAPI), Hybio Pharmaceutical, PolyPeptide Group, CordenPharma, Suzhou Tianma Pharma Group Tianji Bio-Pharmaceutical Co., Ltd., Hangzhou Thinheal Pharma-Tech Co., Ltd. and Sun Pharmaceutical Industries Ltd. Other manufacturers may supply it without a US DMF.

Where are Linaclotide API manufacturers based?

Among listed DMF holders: India (3), China (3), Netherlands (1), Switzerland (1), Germany (1).

Do any Linaclotide API holders have FDA warning letters?

Sun Pharmaceutical Industries Ltd has an open FDA warning letter, shown on the listing and in the FDA enforcement tracker.

Does a DMF mean the API is FDA approved?

No. FDA reviews a DMF when a drug application references it and does not approve DMFs on their own.