Penciclovir is Used for treating recurrent herpes labialis (cold sores) in adults. It was first introduced by Mylan Pharmaceuticals Inc in its drug Denavir on Sep 24, 1996. 4 different companies have introduced drugs containing Penciclovir.

Penciclovir Patents

Given below is the list of patents protecting Penciclovir, 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
Denavir	US6579981	Antiviral guanine derivatives	Jun 17, 2020 (Expired)	Mylan
Denavir	US6469015	Pharmaceutical formulation	Oct 22, 2019 (Expired)	Mylan
Denavir	US5840763	Treatment of a latent infection of herpes viruses	Sep 01, 2015 (Expired)	Mylan
Denavir	US5916893	Treatment of a latent infection of herpes virus	Sep 01, 2015 (Expired)	Mylan
Denavir	US5866581	Penciclovir for the treatment of post therapeutic neuralgia	Oct 04, 2014 (Expired)	Mylan
Denavir	US6124304	Penciclovir for the treatment of zoster associated pain	Oct 04, 2014 (Expired)	Mylan

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Penciclovir's Family Patents

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Penciclovir Generic API Manufacturers

Several generic applications have been filed for Penciclovir. The first generic version for Penciclovir was by Teva Pharmaceuticals Usa Inc and was approved on Nov 9, 2022. And the latest generic version is by Padagis Israel Pharmaceuticals Ltd and was approved on Sep 27, 2024.

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