drug companion

drug companion

A medication whose efficacy depends on its use with a second agent. The same drug may have little effect when used alone.
References in periodicals archive ?
The Pfizer drug companion diagnostic test is being specifically developed for use in lung cancer tissue.
The following versions are now available for users: Pre-Hospital Emergency (EMS), Emergency Medicine Physicians (ED), All Physicians (MD), Medical Student Companion (MSC), Clinical Nursing (RN) and the Portable Drug Companion (PDC).