alexa Chemical Stability of Progesterone in Compounded Topical Preparations using PLO Transdermal Cream and HRT Cream Base over a 90-Day Period at Two Controlled Temperatures | Abstract
ISSN: 2157-7536

Journal of Steroids & Hormonal Science
Open Access

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Research Article

Chemical Stability of Progesterone in Compounded Topical Preparations using PLO Transdermal Cream and HRT Cream Base over a 90-Day Period at Two Controlled Temperatures

Arindam Basu Sarkar1*, Akshita Kandimalla2 and Richard Dudley1

1The University of Findlay, College of Pharmacy, USA

2The University of Findlay, College of Business, USA

*Corresponding Author:
Arindam Basu Sarkar
Associate Professor of Pharmaceutical Sciences
1000 North Main Street Findlay, OH 45840, USA
Tel: (419)434-4471
E-mail: [email protected]

Received date: May 16, 2013; Accepted date: July 15, 2013; Published date: July 19, 2013

Citation: Basu Sarkar A, Kandimalla A, Dudley R (2013) Chemical Stability of Progesterone in Compounded Topical Preparations using PLO Transdermal Cream™ and HRT Cream™ Base over a 90-Day Period at Two Controlled Temperatures. J Steroids Horm Sci 4:114. doi:10.4172/2157-7536.1000114

Copyright: © 2013 Basu Sarkar A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Topical preparations containing progesterone are increasingly compounded in pharmacies, and when done so, have expiration dates of 6 months post preparation or the stated expiration date of the API, whichever comes first. Using an HPLC method developed in our lab for the separation and quantitation of progesterone, we determined the room temperature (25°C) and refrigerated (4°C) stability of compounded progesterone in proprietary PLO Transdermal CreamTM and HRT CreamTM both manufactured by Medisca Inc. over a 90 day period. Area under the curve (AUC) measurements for the 30 and 60 day analysis reveal both compounded preparations retain >95% of the stated initial potency regardless of temperature storage conditions. However, a significant decrease in stability is noted during the last 30 day study period regardless of storage temperature for both preparations (71 and 73% for HRTTM at 25°C and 4°C respectively and 69 and 71% for PLO Transdermal CreamTM 25°C and 4°C respectively). Our data suggests that compounded progesterone preparations maintain chemical stability per USP standards (± 10%) for up to 60 days in each of the tested bases, regardless of storage temperature. Due to the significant loss in chemical stability, usage beyond 60 days post-preparation is not recommended.


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