Details for Patent: 4,704,282

✉ Email this page to a colleague

Summary for Patent: 4,704,282

Title:	Transdermal therapeutic system having improved delivery characteristics
Abstract:	A transdermal therapeutic system using a subsaturated matrix is provided having improved approved release characteristics. Reinforcing means preferably in the form of a fabric are embedded in the upper surface of the subsaturated matrix. At least a portion of the reinforcing means is selected such that the active agent to be delivered to the skin has a solubility, C.sub.r therein which is lower than the initial solubility C.sub.o of the agent in the matrix. In addition, the relationship between the diffusion coefficients of the agent in the matrix D.sub.m and the portion of reinforcing means D.sub.r and the solubilities is given by the relationship: D.sub.r .multidot.C.sub.r <D.sub.m .multidot.C.sub.o. In operation the agent dissolved in the reinforcing means acts as a secondary reservoir improving the release characteristics of the system. Specific embodiments of the invention are particularly adapted for scrotal and labial delivery of drugs such as testosterone and progesterone.
Inventor(s):	Campbell; Patricia S. (Palo Alto, CA), Eckenhoff; James B. (Los Altos, CA)
Assignee:	Alza Corporation (Palo Alto, CA)
Application Number:	06/626,095
Patent Claim Types: see list of patent claims	Use;

Drugs Protected by US Patent 4,704,282

Glossary

Subscribe to access the full database, or Sign Up
Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Patented / Exclusive Use	>Submissiondate

International Family Members for US Patent 4,704,282

Subscribe to access the full database, or Sign Up
Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Canada	1257819	⤷ Sign Up
Germany	3523065	⤷ Sign Up
Germany	3687067	⤷ Sign Up
European Patent Office	0232580	⤷ Sign Up
Spain	296615	⤷ Sign Up
Spain	556380	⤷ Sign Up
Spain	8706455	⤷ Sign Up
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.