Expiring Drug Patents Cheat Sheet
We analyse the patents covering drugs in 134 countries and quickly give you the likely loss-of-exclusivity/generic entry date
South Africa: These 10 Drugs Face Patent Expirations and Generic Entry From 2025 - 2026
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Generic Entry Dates in Other Countries
Friedman, Yali, "South Africa: These 10 Drugs Face Patent Expirations and Generic Entry From 2025 - 2026" DrugPatentWatch.com thinkBiotech, 2025 www.drugpatentwatch.com/p/expiring-drug-patents-generic-entry/.
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These estimated drug patent expiration dates and generic entry opportunity dates are calculated from analysis of known patents covering drugs. Many factors can influence early or late generic entry. This information is provided as a rough estimate of generic entry potential and should not be used as an independent source. The methodology is described in this blog post.
When can ENTRESTO SPRINKLE (sacubitril; valsartan) generic drug versions launch?
Generic name: sacubitril; valsartan
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: November 09, 2025
Generic Entry Controlled by: South Africa Patent 200,704,717
Patent Title: Pharmaceutical combinations of an angiotensin receptor antagonist and an NEP inhibitor

This drug has one hundred and thirty-four patent family members in forty-one countries. There has been litigation on patents covering ENTRESTO SPRINKLE
See drug price trends for ENTRESTO SPRINKLE.
The generic ingredient in ENTRESTO SPRINKLE is sacubitril; valsartan. There are eleven drug master file entries for this API. Twenty-one suppliers are listed for this generic product. Additional details are available on the sacubitril; valsartan profile page.
When can LASTACAFT (alcaftadine) generic drug versions launch?
Generic name: alcaftadine
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: March 31, 2026
Generic Entry Controlled by: South Africa Patent 200,809,327
Patent Title: OCULAR ALLERGY TREATMENTS

This drug has forty-six patent family members in thirty countries. There has been litigation on patents covering LASTACAFT
See drug price trends for LASTACAFT.
The generic ingredient in LASTACAFT is alcaftadine. There are six drug master file entries for this API. Four suppliers are listed for this generic product. Additional details are available on the alcaftadine profile page.
When can TRADJENTA (linagliptin) generic drug versions launch?
Generic name: linagliptin
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: May 04, 2026
Generic Entry Controlled by: South Africa Patent 200,808,361
Patent Title: DPP IV inhibitor formulations

This drug has four hundred and eighty-six patent family members in forty-five countries. There has been litigation on patents covering TRADJENTA
See drug price trends for TRADJENTA.
The generic ingredient in TRADJENTA is linagliptin. There are nineteen drug master file entries for this API. Three suppliers are listed for this generic product. Additional details are available on the linagliptin profile page.
When can EMBEDA (morphine sulfate; naltrexone hydrochloride) generic drug versions launch?
Generic name: morphine sulfate; naltrexone hydrochloride
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: June 19, 2026
Generic Entry Controlled by: South Africa Patent 200,810,501
Patent Title: PHARMACEUTICAL COMPOSITIONS
EMBEDA is a drug marketed by Alpharma Pharms. There are nine patents protecting this drug and four Paragraph IV challenges.
This drug has seventy-four patent family members in twenty-three countries.
See drug price trends for EMBEDA.
The generic ingredient in EMBEDA is morphine sulfate; naltrexone hydrochloride. There are twenty-three drug master file entries for this API. Additional details are available on the morphine sulfate; naltrexone hydrochloride profile page.
When can OPSUMIT (macitentan) generic drug versions launch?
Generic name: macitentan
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: August 29, 2026
Generic Entry Controlled by: South Africa Patent 200,902,164
OPSUMIT is a drug marketed by Actelion. There are five patents protecting this drug and one Paragraph IV challenge. One tentatively approved generic is ready to enter the market.
This drug has ninety-nine patent family members in thirty-four countries. There has been litigation on patents covering OPSUMIT
See drug price trends for OPSUMIT.
The generic ingredient in OPSUMIT is macitentan. There are ten drug master file entries for this API. One supplier is listed for this generic product. Additional details are available on the macitentan profile page.
When can OPSYNVI (macitentan; tadalafil) generic drug versions launch?
Generic name: macitentan; tadalafil
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: August 29, 2026
Generic Entry Controlled by: South Africa Patent 200,902,164
OPSYNVI is a drug marketed by Actelion. There are three patents protecting this drug.
This drug has ninety-nine patent family members in thirty-four countries. There has been litigation on patents covering OPSYNVI
See drug price trends for OPSYNVI.
The generic ingredient in OPSYNVI is macitentan; tadalafil. There are ten drug master file entries for this API. One supplier is listed for this generic product. Additional details are available on the macitentan; tadalafil profile page.
When can ESBRIET (pirfenidone) generic drug versions launch?
Generic name: pirfenidone
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: September 22, 2026
Generic Entry Controlled by: South Africa Patent 200,802,237
Patent Title: Capsule formulation of pirfenidone and pharmaceutically acceptable excipients
ESBRIET is a drug marketed by Genentech Inc. There are twenty patents protecting this drug and two Paragraph IV challenges. One tentatively approved generic is ready to enter the market.
This drug has two hundred and sixty-six patent family members in forty-six countries. There has been litigation on patents covering ESBRIET
See drug price trends for ESBRIET.
The generic ingredient in ESBRIET is pirfenidone. There are twenty-three drug master file entries for this API. Twenty-five suppliers are listed for this generic product. Additional details are available on the pirfenidone profile page.
When can KORSUVA (difelikefalin acetate) generic drug versions launch?
Generic name: difelikefalin acetate
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: November 10, 2026
Generic Entry Controlled by: South Africa Patent 200,903,053
Patent Title: SYNTHETIC PEPTIDE AMIDES AND DIMERS THEREOF
KORSUVA is a drug marketed by Vifor Intl. There are twelve patents protecting this drug.
This drug has fifty-three patent family members in twenty-seven countries. There has been litigation on patents covering KORSUVA
See drug price trends for KORSUVA.
The generic ingredient in KORSUVA is difelikefalin acetate. One supplier is listed for this generic product. Additional details are available on the difelikefalin acetate profile page.
When can KORSUVA (difelikefalin acetate) generic drug versions launch?
Generic name: difelikefalin acetate
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: November 10, 2026
Generic Entry Controlled by: South Africa Patent 200,903,054
Patent Title: SYNTHETIC PEPTIDE AMIDES
KORSUVA is a drug marketed by Vifor Intl. There are twelve patents protecting this drug.
This drug has fifty-three patent family members in twenty-seven countries. There has been litigation on patents covering KORSUVA
See drug price trends for KORSUVA.
The generic ingredient in KORSUVA is difelikefalin acetate. One supplier is listed for this generic product. Additional details are available on the difelikefalin acetate profile page.
When can BEVYXXA (betrixaban) generic drug versions launch?
Generic name: betrixaban
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: December 08, 2026
Generic Entry Controlled by: South Africa Patent 200,904,758
BEVYXXA is a drug marketed by Portola Pharms Inc. There are five patents protecting this drug.
This drug has sixty-seven patent family members in twenty-six countries. There has been litigation on patents covering BEVYXXA
See drug price trends for BEVYXXA.
The generic ingredient in BEVYXXA is betrixaban. Additional details are available on the betrixaban profile page.
When can XERMELO (telotristat etiprate) generic drug versions launch?
Generic name: telotristat etiprate
DrugPatentWatch® Estimated Key Patent Expiration / Generic Entry Date: December 12, 2026
Generic Entry Controlled by: South Africa Patent 200,903,367
Patent Title: 4-Phenyl-6-(2,2,2-trifluoro-1-phenylethoxy) pyrimidine-based compounds and methods of their use
XERMELO is a drug marketed by Tersera. There are five patents protecting this drug.
This drug has seventy patent family members in twenty-nine countries.
See drug price trends for XERMELO.
The generic ingredient in XERMELO is telotristat etiprate. One supplier is listed for this generic product. Additional details are available on the telotristat etiprate profile page.
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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.
