Last Updated: May 3, 2026

SOMOPHYLLIN-CRT Drug Patent Profile

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When do Somophyllin-crt patents expire, and when can generic versions of Somophyllin-crt launch?

Somophyllin-crt is a drug marketed by Graham Dm and is included in five NDAs.

The generic ingredient in SOMOPHYLLIN-CRT is theophylline. There are thirty-six drug master file entries for this compound. Twenty-eight suppliers are listed for this compound. Additional details are available on the theophylline profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Somophyllin-crt

A generic version of SOMOPHYLLIN-CRT was approved as theophylline by RHODES PHARMS on September 1^st, 1982.

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Summary for SOMOPHYLLIN-CRT

US Patents:	0
Applicants:	1
NDAs:	5

US Patents and Regulatory Information for SOMOPHYLLIN-CRT

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Graham Dm	SOMOPHYLLIN-CRT	theophylline	CAPSULE, EXTENDED RELEASE;ORAL	087763-001	Feb 27, 1985		DISCN	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Graham Dm	SOMOPHYLLIN-CRT	theophylline	CAPSULE, EXTENDED RELEASE;ORAL	087193-001	Approved Prior to Jan 1, 1982		DISCN	Yes	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Graham Dm	SOMOPHYLLIN-CRT	theophylline	CAPSULE, EXTENDED RELEASE;ORAL	087194-001	Approved Prior to Jan 1, 1982		DISCN	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Graham Dm	SOMOPHYLLIN-CRT	theophylline	CAPSULE, EXTENDED RELEASE;ORAL	088382-001	Feb 27, 1985		DISCN	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Graham Dm	SOMOPHYLLIN-CRT	theophylline	CAPSULE, EXTENDED RELEASE;ORAL	088383-001	Feb 27, 1985		DISCN	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Exclusivity Expiration

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