Carbamazepine is Used for treating neurological and other disorders such as epilepsy with twice daily oral dosing. It was first introduced by Novartis Pharmaceuticals Corp in its drug Tegretol on Approved Prior to Jan 1, 1982. Other drugs containing Carbamazepine are Equetro, Tegretol-Xr, Carbatrol, Carnexiv. 38 different companies have introduced drugs containing Carbamazepine.

Carbamazepine Patents

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

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Drug Used in	Drug Patent Number	Drug Patent Title	Drug Patent Expiry	Drug Owner
Carnexiv	US11529357	Injectable carbamazepine composition essentially free of 10-bromo-carbamazepine	Jan 31, 2040	Lundbeck Pharms Llc
Carnexiv	US9493582	Alkylated cyclodextrin compositions and processes for preparing and using the same	Feb 27, 2033	Lundbeck Pharms Llc
Carnexiv	US7635773	Sulfoalkyl ether cyclodextrin compositions	Mar 13, 2029	Lundbeck Pharms Llc
Carnexiv	US8410077	Sulfoalkyl ether cyclodextrin compositions	Mar 13, 2029	Lundbeck Pharms Llc
Carnexiv	US9750822	Sulfoalkyl ether cyclodextrin compositions	Mar 13, 2029	Lundbeck Pharms Llc
Carnexiv	US9629797	Parenteral carbamazepine formulation	Nov 10, 2028	Lundbeck Pharms Llc
Carnexiv	US9770407	Parenteral carbamazepine formulation	Nov 10, 2028	Lundbeck Pharms Llc
Equetro	US6977253	Methods for the treatment of bipolar disorder using carbamazepine	May 19, 2024 (Expired)	Validus Pharms
Carbatrol	US5912013	Advanced drug delivery system and method of treating psychiatric, neurological and other disorders with carbamazepine	Jun 15, 2016 (Expired)	Takeda Pharms Usa
Equetro	US5912013	Advanced drug delivery system and method of treating psychiatric, neurological and other disorders with carbamazepine	Jun 15, 2016 (Expired)	Validus Pharms

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Carbamazepine Generic API Manufacturers

Several generic applications have been filed for Carbamazepine. The first generic version for Carbamazepine was by Usl Pharma Inc and was approved on May 15, 1986. And the latest generic version is by Alembic Pharmaceuticals Ltd and was approved on Jul 25, 2025.

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