"quality and efficacy" is a correct and usable phrase in written English.
It is often used in formal or technical writing to describe the effectiveness or ability of something. For example: "The new drug has been tested for its quality and efficacy, and has shown promising results in treating the disease."
A handful of studies have shown that compounded drugs can vary widely in quality and efficacy.
What evidence is there about the safety, quality and efficacy of e-cigarettes?
Melatonin slightly improves sleep onset and sleep duration, but product quality and efficacy may vary.
Since then all new medicines are subjected to pre-marketing assessment of safety, quality and efficacy.
E-cigarettes are not licenced as NRTs and because at present their safety, quality and efficacy cannot be assured, they are not recommended.
Last week, the state of Oregon filed a lawsuit accusing Johnson & Johnson and McNeil of misrepresenting the quality and efficacy of those products.
"Patients may experience adverse reactions to the bad vaccines and the immunisation programme doesn't know whether that's due to a faulty product or because quality and efficacy have been compromised".
This would provide assurance on the safety, quality and efficacy to consumers who want to use these products as quitting aids, especially in relation to the flavourings used, which is where we know least about any inhalation risks".
The Program assists United Nations organizations and international non-governmental organizations (INGOs) by offering technical assistance, training and capacity building to improve the quality and efficacy of humanitarian response in complex emergencies.
The air-assisted boom sprayer was compared with a traditional boom sprayer to check the spray application in terms of quality and efficacy of distribution.
