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May 2006


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"Derenne, Elizabeth M." <[log in to unmask]>
Reply To:
The Pharmaceutical Microbiology Forum Email List <[log in to unmask]>
Thu, 4 May 2006 08:30:29 -0500
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I believe the proposed USP specs are 10 CFU for the total plate count, 10 CFU for total yeast and molds count, 10 coliforms, 10 enterobacterial.  In EP it is 100 CFU bacteria+fungi and absence of P. aeruginosa and S. aureus. 
I would think you would definitely want absence of Pseudomonas and Staph and probably some other objectionable organisms like Strep and other known respiratory tract pathogens.

Beth Derenne
Research Specialist


Date:    Tue, 2 May 2006 11:33:56 -0700
From:    Sandy Mohan <[log in to unmask]>
Subject: Re: Microbial limits

Does anyone know what microbial limits are used for inhalers -
metered-dose or dry powder inhalers?=20


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