drug cocktail

synonym: drug combination
https://doi.org/10.1351/goldbook.12644
­
  1. (in drug therapy) Administration of two or more distinct pharmacological agents to achieve a combination of their individual effects.
    Note 1: The combined effect may be additive, synergistic, or designed to reduce side-effects.
    Note 2: This term is often used synonymously with that of "drug combination" but is preferred in order to avoid confusion with medications in which different drugs are included in a single formulation.
  2. (in drug testing) Administration of two or more distinct compounds to test simultaneously their individual behaviours (e.g., pharmacological effects in high-throughput screens or drug metabolism).
Source:
PAC, 2013, 85, 1725. (Glossary of terms used in medicinal chemistry. Part II (IUPAC Recommendations 2013)) on page 1732 [Terms] [Paper]