.

Pharmaceutical Business Intelligence

  • Anticipate P&T budget requirements
  • Evaluate market entry opportunities
  • Find generic sources and suppliers
  • Predict branded drug patent expiration

► Plans and Pricing

Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

DrugPatentWatch Database Preview

Details for Patent: 4,177,267

« Back to Dashboard

Details for Patent: 4,177,267

Title: Enhancing tissue penetration of physiologically active steroidal agents with DMSC
Abstract:A method of enhancing tissue penetration of physiologically active steroidal agents by conjointly applying them to the tissue with dimethyl sulfoxide. Penetration of the skin and the mucous membranes of the body cavities by these agents may be enhanced by conjoint application of such agents and dimethyl sulfoxide directly to such membranes. Preferably, for penetration of these agents through the skin compositions of DMSO at concentrations of 50% and above are employed and for penetration through mucous membranes, compositions including DMSO at concentrations of 10% and above are employed. Steroidal agents may be advantageously administered by injection with DMSO in concentrations preferably up to 20% by weight to enhance penetration of internal tissue membrane barriers to achieve better distribution of these agents.
Inventor(s): Herschler; Robert J. (Camas, WA)
Assignee: Crown Zellerbach (San Francisco, CA)
Filing Date:Nov 06, 1972
Application Number:05/304,283
Claims:1. A method of enhancing the penetration into and across an external membrane barrier of a human or animal subject to a physiologically active steroidal agent capable of eliciting a physiological effect upon topical application thereof, which comprises the concurrent topical administration to the external membrance of an amount of said steroidal agent effective to produce the desired physiological effect and an amount of DMSO sufficient to effectively enhance penetration of said steroidal agent to achieve the desired physiological effect.

2. A method as in claim 1 and where in the said agent is applied to the intact skin in a composition which includes said DMSO and wherein the DMSO in said composition is at least about 50% by weight of the composition.

3. A method as in claim 1 and wherein said agent is applied to mucous membrane of a body cavity in a composition which includes said DMSO and wherein the DMSO in said composition is at least about 10% by weight of the composition.

4. A method as in claim 1 and wherein said agent is a non-estrogenic steroid.

5. A method as in claim 1 and wherein said steroidal agent is a steroid of the pregnane series.

6. A method as in claim 1 and wherein said agent is applied to said membrane in a composition which includes said DMSO.

7. A method as in claim 6 and wherein said composition contains a pharmaceutically acceptable thickening agent in an amount sufficient to materially increase the viscosity thereof, whereby to facilitate topical application.

8. A method as in claim 7 wherein said composition is in the form of an ointment.

9. A method as in claim 7 and wherein said composition is in the form of a lotion.

10. A method as in claim 7 and wherein said composition is in the form of a suppository.
« Back to Dashboard

For more information try a trial or see the database preview and plans and pricing

How are People Using DrugPatentWatch?

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 verifification 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.

`abc