The phrase "a proprietary preparation" is correct and usable in written English.
It can be used in contexts related to products, especially in industries like pharmaceuticals, cosmetics, or food, where a specific formulation is owned by a company.
Example: "The company has developed a proprietary preparation that enhances the effectiveness of their skincare line."
Alternatives: "a patented formulation" or "a unique blend".
In the UK, 64% of prescription items were dispensed generically in 2007 while in Ireland 19% were dispensed generically and 25% of prescription items were dispensed as a proprietary preparation when a generic equivalent was available [ 34, 35].
We sought to assess whether GFS, a proprietary preparation of Tasmanian Undaria pinnatifida, has effects on healing or re-emergence of Herpetic infections, and additionally, to assess effects of GFS in vitro.
A proprietary formulation was chosen to undergo this suitability determination.
In this study, a proprietary Undaria preparation 'GFS' was assessed for effects on the healing of, and the inhibition of outbreaks of HSV infections in otherwise healthy patients.
We examined the safety and efficacy of VigRX Plus (VXP) – a proprietary polyherbal preparation for improving male sexual function, in a double blind, randomized placebo-controlled, parallel groups, multi-centre study.
We have sequenced our tissue-specific libraries using a proprietary library preparation method, named Single Primer Isothermal Amplification (SPIA), which is ideal for use with mRNA-tagging, since the RNA yield from this approach is typically low [ 37, 66].
Women were asked which specific proprietary preparation of HRT they had used most recently, and for these analyses the preparations are grouped according to the hormonal constituents of each preparation listed in the British National Formulary [ 6].
Bioequivalence is a term in pharmacokinetics used to assess the expected in vivo biological equivalence of two proprietary preparations of a drug.
The search strategy included "application: topical" together with "cream", "gel" etc, together with generic names of NSAIDs, and proprietary preparations of topical treatment in which the principal active ingredient was an NSAID [ 6, 7] (see Additional file 1: search strategy).
A substantial body of evidence indicates that many generic formulations of oral bisphosphonates are less well tolerated than the proprietary preparations, which results in significantly poorer adherence and thus effectiveness [ 11].
A proprietary iron hydroxide sucrose preparation (Venofer®; Synermed, (Pharmaceutical Products Ltd Purley Surryy, UK) was administered intravenously to augment iron stores in smaller doses and given at greater intervals than required by anaemic patients.
