Drug Patent Expirations in October 2007
Courtesy of DrugPatentWatch.com:
Drug Patent Expirations in October 2007
*Drugs may be covered by more than one patent
| Tradename | Applicant | Generic Name | Patent Number | Patent Expiration |
| CLARINEX | Schering | desloratadine | 4,659,716 | OCT 01,2007 |
| CLARINEX | Schering Plough | desloratadine | 4,659,716 | OCT 01,2007 |
| CLARINEX D 24 HOUR | Schering | desloratadine; pseudoephedrine sulfate | 4,659,716 | OCT 01,2007 |
| CLARINEX-D 12 HOUR | Schering | desloratadine; pseudoephedrine sulfate | 4,659,716 | OCT 01,2007 |
| COVERA-HS | Gd Searle Llc | verapamil hydrochloride | 4,946,687 | OCT 02,2007 |
| DYNACIRC CR | Reliant Pharms | isradipine | 4,816,263 | OCT 02,2007 |
| DYNACIRC CR | Reliant Pharms | isradipine | 4,946,687 | OCT 02,2007 |
| DYNACIRC CR | Reliant Pharms | isradipine | 4,950,486 | OCT 02,2007 |
| ESTROSTEP 21 | Warner Chilcott | ethinyl estradiol; norethindrone acetate | 4,962,098 | OCT 09,2007 |
| ESTROSTEP FE | Warner Chilcott | ethinyl estradiol; norethindrone acetate | 4,962,098 | OCT 09,2007 |
| LEXXEL | Astrazeneca | enalapril maleate; felodipine | 4,803,081 | OCT 03,2007 |
| NEXIUM | Astrazeneca | esomeprazole magnesium | 4,786,505 | OCT 20,2007 |
| NEXIUM | Astrazeneca | esomeprazole magnesium | 4,853,230 | OCT 20,2007 |
| OXYCONTIN | Purdue Pharma Lp | oxycodone hydrochloride | 5,266,331 | OCT 26,2007 |
| OXYCONTIN | Purdue Pharma Lp | oxycodone hydrochloride | 5,549,912 | OCT 26,2007 |
| OXYCONTIN | Purdue Pharma Lp | oxycodone hydrochloride | 5,656,295 | OCT 26,2007 |
| PERMAX | Valeant Pharm Intl | pergolide mesylate | 4,797,405 | OCT 26,2007 |
| PLENDIL | Astrazeneca | felodipine | 4,803,081 | OCT 03,2007 |
| PRILOSEC | Astrazeneca | omeprazole | 4,786,505 | OCT 20,2007 |
| PRILOSEC | Astrazeneca | omeprazole | 4,853,230 | OCT 20,2007 |
| PRILOSEC OTC | Astrazeneca | omeprazole magnesium | 4,786,505 | OCT 20,2007 |
| PRILOSEC OTC | Astrazeneca | omeprazole magnesium | 4,853,230 | OCT 20,2007 |
| PROPULSID | Janssen Pharma | cisapride monohydrate | 4,962,115 | OCT 09,2007 |
| PROPULSID QUICKSOLV | Janssen Pharma | cisapride monohydrate | 4,962,115 | OCT 09,2007 |
| VOLTAREN | Novartis | diclofenac sodium | 4,960,799 | OCT 03,2007 |
| ZOVIRAX | Glaxosmithkline | acyclovir | 4,963,555 | OCT 16,2007 |
Courtesy of DrugPatentWatch.com
I don´t understand why there were already generics for omeprazole or enalapril since 2005 or 2006. Do the companies allow it before the patent expire? Why?