In literary works the word tonic functions in a dual capacity, both as a concrete medicinal remedy and as a metaphor for rejuvenation. In many texts it refers to a substance employed for its restorative and stimulant properties—administered to treat fevers, digestive ailments, or as a general remedy in the realm of herbal pharmacotherapy [1][2][3][4]—while in other contexts it symbolizes an invigorating force that uplifts the mind or spirit [5][6][7]. Authors sometimes use it humorously or ironically in dialogue to underscore a character's reliance on such remedies or to liken abstract influences to a physical boost [8][9][10]. This versatility, bridging the literal and the figurative, enriches the narrative by drawing upon the familiar qualities of tonic to evoke both bodily and emotional renewal [11][12][13].