| USP | <abbreviation> United States Pharmacopeia. See: Pharmacopeia. (05 Mar 2000) |
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| USP unit | A unit as defined and adopted by the United States Pharmacopeia. (05 Mar 2000) |
| USPHS | The United States Public Health Service, a part of the department of health and human services (hhs). The usphs is responsible for the public health of the american people. It administers a number of important health agencies including the food and drug administration (FDA), centres for disease control (cdc), and the national institutes of health (nih). (12 Dec 1998) |