After the patent expired on the prescription drug Desyrel, would all
subsequent products have been named Trazodone?

Lonesomedove735,

Yes, according to the FDA Electronic Orange Book, it appears that
after the patent expired on the prescription drug Desyrel, all
subsequent products have been named Trazodone.
http://www.fda.gov/cder/ob/default.htm

Instructions:
http://www.fda.gov/cder/ob/default.htm
1. Click on link "Search by Active Ingredient"
2. Enter the word Trazodone and click "SUBMIT".
3. Click on application number for additional information for each product.


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Active Ingredient Search Results from "OB_Rx" table for query on "trazodone"
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TRAZODONE HYDROCHLORIDE  
Proprietary Name :DESYREL  
Applicant : APOTHECON  

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TRAZODONE HYDROCHLORIDE    
Proprietary Name :TRAZODONE HYDROCHLORIDE  
Applicant : BARR  


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TRAZODONE HYDROCHLORIDE    
Proprietary Name :TRAZODONE HYDROCHLORIDE  
Applicant: MUTUAL PHARM  


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TRAZODONE HYDROCHLORIDE    
Proprietary Name :TRAZODONE HYDROCHLORIDE  
Applicant: MYLAN  


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TRAZODONE HYDROCHLORIDE    
Proprietary Name :TRAZODONE HYDROCHLORIDE  
Applicant:PLIVA  


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TRAZODONE HYDROCHLORIDE    
Proprietary Name :TRAZODONE HYDROCHLORIDE  
Applicant: PUREPAC PHARM  


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TRAZODONE HYDROCHLORIDE    
Proprietary Name :TRAZODONE HYDROCHLORIDE  
Applicant: SANDOZ  


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TRAZODONE HYDROCHLORIDE    
Proprietary Name :TRAZODONE HYDROCHLORIDE  
Applicant: TEVA  


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TRAZODONE HYDROCHLORIDE    
Proprietary Name :TRAZODONE HYDROCHLORIDE  
Applicant: WATSON LABS  

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Search:
FDA Orange Book


I hope the information provided is helpful!

Best regards, 
Bobbie7

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Request for Answer Clarification by lonesomedove735-ga on 25 Jan 2006 09:08 PST

When did the patent expire?

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Clarification of Answer by bobbie7-ga on 25 Jan 2006 11:43 PST

Dear Lonesomedove735, 

I already tried to answer your other question regarding the patent
expiration date for Desyrel posted on January 20th. Unfortunately I
did not find the date.

Here is the direct link to this question.
http://answers.google.com/answers/threadview?id=435977

Other researchers have also tried to anser that question without any luck.

It expires on February 19th so perhaps another researcher might find
the answer for you.
http://answers.google.com/answers/threadview?id=435977

Best regards, 
Bobbie7

The answer was great.  The only thing lacking was the patent
expiration date, which I hope to get through the "clarification"
process.  Thank you for your help.