medicine

https://doi.org/10.1351/goldbook.16241
Any drug or remedy.
Note: This definition depends on usage. Any substance, e.g., herbs, willow bark, or honey, may be used as a drug or a remedy and, as always, the end effect will depend on the dose.
Source:
PAC, 2007, 79, 1583. (Explanatory dictionary of key terms in toxicology (IUPAC Recommendations 2007)) on page 1631 [Terms] [Paper]