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Silodosin Patent Expiration

Silodosin is Used for managing the signs and symptoms of benign prostatic hyperplasia (BPH). It was first introduced by Abbvie Inc in its drug Rapaflo on Oct 8, 2008. 14 different companies have introduced drugs containing Silodosin.


Silodosin Patents

Given below is the list of patents protecting Silodosin, along with the drug name that holds that patent and the company name owning that drug.

Drug Used in Drug Patent Number Drug Patent Title Drug Patent Expiry Drug Owner
Rapaflo US5387603 1,5,7-trisubstituted indoline compounds and salts thereof Dec 01, 2018

(Expired)

 Abbvie
Rapaflo US5403847 Use of α1C specific compounds to treat benign prostatic hyperlasia Nov 13, 2012

(Expired)

 Abbvie
Rapaflo US5780485 Use of α1c specific compounds to treat benign prostatic hyperplasia Nov 13, 2012

(Expired)

 Abbvie
Rapaflo US6015819 Use of alpha-1C specific compounds to treat benign prostatic hyperplasia Nov 13, 2012

(Expired)

 Abbvie



Silodosin's Family Patents

Family Patents

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Silodosin Generic API Manufacturers

Several generic applications have been filed for Silodosin. The first generic version for Silodosin was by Chartwell Rx Sciences Llc and was approved on Mar 31, 2017. And the latest generic version is by Torrent Pharmaceuticals Ltd and was approved on Feb 10, 2025.

Given below is the list of companies who have filed for Silodosin generic, along with the locations of their manufacturing plants worldwide.


1. AJANTA PHARMA LTD

Ajanta Pharma Ltd has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Ajanta Pharma Ltd.

Strength Dosage Form Availability Application Pathway TE code Launch Date
4MG

capsule Prescription ORAL AB Dec 3, 2018
8MG

capsule Prescription ORAL AB Dec 3, 2018


Manufacturing Plant Locations
New

Ajanta Pharma Ltd's manufacturing plants are situated in 1 country - India. Given below are the details of these plant locations as well as the firm names of Ajanta Pharma Ltd as present at those locations.

Country City Firm Name
India
Aurangabad Ajanta Pharma Ltd.





2. ALEMBIC

Alembic Pharmaceuticals Ltd has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Alembic.

Strength Dosage Form Availability Application Pathway TE code Launch Date
8MG

capsule Discontinued ORAL N/A Nov 22, 2019
4MG

capsule Discontinued ORAL N/A Nov 22, 2019


Manufacturing Plant Locations
New

Alembic's manufacturing plants are situated in 1 country - India. Given below are the details of these plant locations as well as the firm names of Alembic as present at those locations.

Country City Firm Name
India
Vadodara Alembic Pharmaceuticals Ltd
Panelav Alembic Pharmaceuticals Limited
Panchmahal Alembic Pharmaceuticals Limited (Units I and II)
Vadodara Alembic Pharmaceuticals, Ltd
Vadodara Alembic Pharmaceuticals Ltd (API Division, Karakhadi)
Panchmahal Alembic Pharmaceuticals Limited
Vadodara Alembic Pharmaceuticals Limited





3. AMNEAL PHARMS CO

Amneal Pharmaceuticals Co Gmbh has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Amneal Pharms Co.

Strength Dosage Form Availability Application Pathway TE code Launch Date
4MG

capsule Prescription ORAL AB Dec 3, 2018
8MG

capsule Prescription ORAL AB Dec 3, 2018





4. AUROBINDO PHARMA LTD

Aurobindo Pharma Ltd has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Aurobindo Pharma Ltd.

Strength Dosage Form Availability Application Pathway TE code Launch Date
8MG

capsule Prescription ORAL AB Dec 10, 2018
4MG

capsule Prescription ORAL AB Dec 10, 2018


Manufacturing Plant Locations
New

Aurobindo Pharma Ltd's manufacturing plants are situated in 1 country - India. Given below are the details of these plant locations as well as the firm names of Aurobindo Pharma Ltd as present at those locations.

Country City Firm Name
India
Medchal Aurobindo Pharma Ltd





5. CHARTWELL RX

Chartwell Rx Sciences Llc has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Chartwell Rx.

Strength Dosage Form Availability Application Pathway TE code Launch Date
4MG

capsule Prescription ORAL AB Mar 31, 2017
8MG

capsule Prescription ORAL AB Mar 31, 2017





6. CREEKWOOD PHARMS

Creekwood Pharmaceuticals Llc has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Creekwood Pharms.

Strength Dosage Form Availability Application Pathway TE code Launch Date
8MG

capsule Prescription ORAL AB Jan 3, 2022
4MG

capsule Prescription ORAL AB Jan 3, 2022





7. HETERO LABS LTD V

Hetero Labs Ltd Unit V has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Hetero Labs Ltd V.

Strength Dosage Form Availability Application Pathway TE code Launch Date
8MG

capsule Prescription ORAL AB Feb 14, 2020
4MG

capsule Prescription ORAL AB Feb 14, 2020





8. LUPIN LTD

Lupin Ltd has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Lupin Ltd.

Strength Dosage Form Availability Application Pathway TE code Launch Date
4MG

capsule Prescription ORAL AB Dec 3, 2018
8MG

capsule Prescription ORAL AB Dec 3, 2018


Manufacturing Plant Locations
New

Lupin Ltd's manufacturing plants are situated in 1 country - India. Given below are the details of these plant locations as well as the firm names of Lupin Ltd as present at those locations.

Country City Firm Name
India
Aurangabad Lupin Ltd.





9. MACLEODS PHARMS LTD

Macleods Pharmaceuticals Ltd has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Macleods Pharms Ltd.

Strength Dosage Form Availability Application Pathway TE code Launch Date
4MG

capsule Prescription ORAL AB Dec 3, 2018
8MG

capsule Prescription ORAL AB Dec 3, 2018





10. MSN

Msn Laboratories Private Ltd has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Msn.

Strength Dosage Form Availability Application Pathway TE code Launch Date
4MG

capsule Prescription ORAL AB Dec 3, 2018
8MG

capsule Prescription ORAL AB Dec 3, 2018


Manufacturing Plant Locations
New

Msn's manufacturing plants are situated in 2 countries - India, United States. Given below are the details of these plant locations as well as the firm names of Msn as present at those locations.

Country City Firm Name
India
Rangareddy District MSN Laboratories Private Limited
Medak MSN LIFE SCIENCES PRIVATE LIMITED
Jinnaram, Sangareddy MSN Laboratories Private Limited - Formulations Division
Yadadri Bhuvanagiri District MSN Organics Private Limited
Sangareddy MSN Laboratories Private Ltd.
Isnapur MSN Laboratories Private Limited, Unit-II
Sangareddy MSN Laboratories Private Limited, R&D Center
Rangareddy District MSN Laboratories Private Limited (Formulations Division, Unit-II)
Sangareddy MSN Pharmachem Private Limited
Kamareddy MSN Life Sciences Private Limited
United States
Piscataway MSN PHARMACEUTICALS INC





11. PRINSTON INC

Prinston Pharmaceutical Inc has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Prinston Inc.

Strength Dosage Form Availability Application Pathway TE code Launch Date
8MG

capsule Prescription ORAL AB Jan 4, 2022
4MG

capsule Prescription ORAL AB Jan 4, 2022





12. TORRENT

Torrent Pharmaceuticals Ltd has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Torrent.

Strength Dosage Form Availability Application Pathway TE code Launch Date
4MG

capsule Prescription ORAL AB Feb 10, 2025
8MG

capsule Prescription ORAL AB Feb 10, 2025


Manufacturing Plant Locations
New

Torrent's manufacturing plants are situated in 2 countries - India, United States. Given below are the details of these plant locations as well as the firm names of Torrent as present at those locations.

Country City Firm Name
India
Gandhi Nagar Torrent Pharmaceuticals Limited
Bharuch Torrent Pharmaceuticals Limited
Pithampur Torrent Pharmaceuticals Limited
Thanam Torrent Pharmaceuticals Limited
Indrad Torrent Pharmaceuticals Limited
United States
Kalamazoo Torrent Pharma Inc.
Basking Ridge Torrent Pharma Inc.





13. ZYDUS PHARMS

Zydus Pharmaceuticals Usa Inc has filed for 2 different strengths of generic version for Silodosin. Given below are the details of the strengths of this generic introduced by Zydus Pharms.

Strength Dosage Form Availability Application Pathway TE code Launch Date
8MG

capsule Discontinued ORAL N/A Dec 8, 2022
4MG

capsule Discontinued ORAL N/A Dec 8, 2022